Public report of zio/zio-json, published 21 October 2026. It has the same score, grades and number of
findings as the full report. The details of security findings (where they are in the code, which known
vulnerabilities and which passwords or keys were found) are left out, so nobody can use them against the project.
Public
Executive reportMeasured under the Code Assurance Index, an open standard for code quality, using its published scoring rules (rubric version 2026.10.5). Watchdog signed this survey and filed it in the standard's public register, where anyone can look it up by its survey ID. Check this survey →
Signed and filed in the standard's public register, 21 October 2026, 07:43 UTC · Survey ID cd_2e480a6380cf406692671f967fb14a75
zio/zio-json
Measured 21 October 2026, 07:37 UTC, at code version b553f68
CAI scoreAdequate
CriticalWeakAdequateStrongExemplary
Down 1 since the last survey
The score is built from these lenses. Each lens grades one area of the code, such as how easy it is to change or how well it is protected. The weakest lens counts most, so one weak area pulls the score down instead of being averaged away.
A small codebase: 16,762 lines of product code in 10 projects, tests not counted · Estimated rebuild effort: about 0.2 person-years · Weakest lens: Maturity, 52
Findings by how serious they are
44 critical333 serious49 minor
9 dimensions are left out of the score. For each one, Watchdog either couldn't measure it in this code, or found no evidence of the safeguard it looks for, such as a tested backup restore. They count neither for nor against the score, and Limitations lists each one with its reason.
This survey was produced by
Watchdog
Producer
Canine Development
Analyzer
Watchdog engine 1.0.0
Measured
21 October 2026, 07:37 UTC
A measurement, not a certificate. The Code Assurance Index records a number
together with the evidence it was worked out from, so anyone can recalculate it, but it doesn't certify or guarantee
the code. The standard was written by Canine Development, which also builds Watchdog. It is open to any tool that
implements it, and today Watchdog is the only one that does.
The score is deterministic, which means the same code always gets the same score. Watchdog works it out with tools that follow published rules, and an AI model never decides it, so anyone who applies the same rules to the same code gets the same number. How it is done is explained under Methodology ▸
61of 65 dimensions measured by tools. The other 4 are advisory notes from an AI model, which explain the code but don't count towards the score.
412of 426 findings point to an exact file and line, so you can open each one in the code. The other 14 concern the repository as a whole, such as missing documentation.
65dimensions across 6 lenses, read from 16,762 lines of product code in 10 projects.
zio/zio-json scores 62 out of 100 and is rated Adequate, while five of its six lenses score higher still: Architecture at 92 and Security and Compliance and Code Health at 64, all rated Adequate, and Production Readiness at 89 and Performance at 84, both rated Strong.
The score is lower than those five because the weakest lens counts most, and here that is Maturity, which scores 52 and is rated Adequate. Its Architecture documentation dimension scores 0 out of 10, and until that reaches 4, Maturity can't be rated higher than Adequate. The first actions are to resolve the 1 No ADRs found finding(s) in ADR Quality and to record your significant design decisions, and if Maturity rose to 70, the score would rise from 62 to about 68.
44 findings are critical, all in Static Analysis (SAST).
Watchdog couldn't measure 7 dimensions in this code, among them Code Coverage, Test Reliability and Internal API Consistency, so they are left out of the score. The product code is 16,762 lines, which would take an estimated 0.2 person-years, around €29,000, to rebuild.
A lens is capped at Adequate while one of its dimensions scores below 4 out of 10, however well the rest of the lens does. That way a serious problem in one place always shows in the lens's rating.
How the score is built: what each lens counts forThe lenses don't count equally. The weakest lens counts most, the next weakest a little less, and so on, so a weak area pulls the score down instead of being averaged away. In the bar below, each part's width shows how much that lens counts and its colour shows its rating. Improving the widest part moves the score most, and as that lens improves, it counts for less, because another lens becomes the weakest.
If Maturity rose from 52 to 70, the lowest score rated Strong, the score would rise from 62 to about 68.
Code composition: what the lines of code are
Product code 63%Tests 37%
Rebuild cost: about €29,000 · Estimate
Cost to rebuild
€9,800 to €49,000, for 163 to 517 hours of work, about 0.2 person-years for one engineer
Difficulty of the problem
Standard, judged from the kind of software and how it is built. Code that solves a harder problem, such as payments or medical bookings, costs more per line to write.
Quality factor
×0.8 at a score of 62. Better code takes more work to write, so the factor is ×1.0 at a score of 70, lower below it and higher above it.
Size
Small: 16,762 lines of product code
How the estimate is made: Watchdog prices the hours a team would need to write this code again, at €60 to €95 an hour. Declarations and boilerplate are priced at a fast rate and logic at a slower one, and the logic is then multiplied by the difficulty of the problem and by the quality factor. The estimate can be about 30% off either way, and it moves most with the hourly rate and the difficulty. For this code, every line is priced as straight logic, which keeps the estimate on the low side.
Top priorities
The three actions that raise the score most for the work they take. The full ranked list is in the Roadmap.
1
Resolve the 1 No ADRs found finding(s) in ADR Quality.
Raises the score by about 8 points · Low effort · ADR Quality
2
Record your significant design decisions.
Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.
Resolve the 2 Off-boarding risk finding(s) in Bus Factor.
Raises the score by about 4 points · Low effort · Bus Factor
Diagnosis: what the measurements show together
Each conclusion below combines several dimensions into one point that no single dimension shows, and lists the measurements it rests on.
Where the investment is most exposed · Value at risk
This code would cost about €29,000 to build again, about 0.2 person-years of work. Its weakest lens is Maturity, at 52 (Adequate). Maturity is about how well the project explains and looks after itself, which decides whether a new developer, or a new supplier, can take over. Because the weakest lens counts most in the score, work on Maturity also moves the score most.
Based on: the rebuild estimate · the Maturity grade · how much each lens counts
What to do: Start with the Maturity actions in Top priorities.
If you do one thing first · First action
Resolve the 1 No ADRs found finding(s) in ADR Quality. Of all the actions in this report, it raises the score most for the work it takes: about 8 points for low effort, because it clears the 1 ADR Quality findings. The next survey will show the change in the score.
Based on: the ranked actions in Top priorities, by score gain and effort
What hard-to-read code costs each year · Cost
Four dimensions measure how easy the code is to work in: two measure how tangled its logic is, one how much of it is copied, and one how well each part sticks to a single job. In this codebase they average 5.6 out of 10. Code at that level is slower to change than clean code, and Watchdog estimates the extra work at 6% to 14% on every change. The history of the code shows how much it changes: about 4,092 lines over the last 90 days, which is about 16,595 lines a year. At that pace, the extra work comes to an estimated 2.5 to 15.2 engineer-days a year, and it grows as more code changes.
How this is estimated: The number of changed lines is measured from the history of the code. The rest rests on two assumptions of Watchdog's own: code scoring 8 out of 10 or more adds no extra work, and each point below 8 adds 2.5% to 5.6% to every change; and an engineer changes 150 to 400 lines in a day. The result is a range for planning, not a measurement.
Based on: Cyclomatic Complexity · Cognitive Complexity · Code Duplication · Cohesion (LCOM4) · the code's change history
What to do: Start with the files listed under Churn × Complexity Hotspots, which change often and are hard to read, because that is where the extra work is paid most often.
Architecture — module dependency graph
Project dependencies, layered top-to-bottom; arrows show direction. Any dashed red edge points upward or sideways — a layering smell or cycle. A clean layered graph has none.
Architecture: which parts of the code depend on which
The code is divided into modules, groups of code that each handle one part of the product, and a module depends on another when it uses code from it. The table lists the modules both down the side and across the top, in an order where each module should only use modules listed above it. A number in a cell means the module on that row uses the module in that column, and it counts the pairs of building blocks (types) that connect them. The one thing to look for is a mark above the diagonal line. It means two or more modules use each other in a loop (a dependency cycle), so none of them can be changed, tested or released on its own.
32 modules, with 44 dependencies between them. One loop runs through 9 of the modules, marked above the diagonal.
Which modules use which. The module on each row uses the module in each column, and the number counts the pairs of types that connect them. A cell above the diagonal is part of a loop.
zio.json.JsonCodecConfiguration.SumTypeHandling uses zio.json.JsonCodecConfiguration, so a change to zio.json.JsonCodecConfiguration can break zio.json.JsonCodecConfiguration.SumTypeHandling, while a change to zio.json.JsonCodecConfiguration.SumTypeHandling can't break zio.json.JsonCodecConfiguration.
Position
Below the diagonal: zio.json.JsonCodecConfiguration.SumTypeHandling uses a module listed above it, which is the healthy direction.
9→21 zio.json.JsonStreamDelimiter uses zio.jsonpart of a loop✕
Connections
2 pairs of types, where a type in zio.json.JsonStreamDelimiter uses a type in zio.json.
zio.json.JsonStreamDelimiter uses zio.json, so a change to zio.json can break zio.json.JsonStreamDelimiter, while a change to zio.json.JsonStreamDelimiter can't break zio.json.
Position
Above the diagonal, so it is part of a loop. Neither module can be changed, tested or released on its own until one of these dependencies is removed.
10→15 zio.json.ast.JsonType uses zio.json.astpart of a loop✕
Connections
12 pairs of types, where a type in zio.json.ast.JsonType uses a type in zio.json.ast.
zio.json.ast.JsonType uses zio.json.ast, so a change to zio.json.ast can break zio.json.ast.JsonType, while a change to zio.json.ast.JsonType can't break zio.json.ast.
Position
Above the diagonal, so it is part of a loop. Neither module can be changed, tested or released on its own until one of these dependencies is removed.
zio.json.ast.JsonCursor uses zio.json.ast.JsonType, so a change to zio.json.ast.JsonType can break zio.json.ast.JsonCursor, while a change to zio.json.ast.JsonCursor can't break zio.json.ast.JsonType.
Position
Below the diagonal: zio.json.ast.JsonCursor uses a module listed above it, which is the healthy direction.
11→15 zio.json.ast.JsonCursor uses zio.json.astpart of a loop✕
Connections
5 pairs of types, where a type in zio.json.ast.JsonCursor uses a type in zio.json.ast.
zio.json.ast.JsonCursor uses zio.json.ast, so a change to zio.json.ast can break zio.json.ast.JsonCursor, while a change to zio.json.ast.JsonCursor can't break zio.json.ast.
Position
Above the diagonal, so it is part of a loop. Neither module can be changed, tested or released on its own until one of these dependencies is removed.
zio.json.internal uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json.internal, while a change to zio.json.internal can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json.internal uses a module listed above it, which is the healthy direction.
12→21 zio.json.internal uses zio.jsonpart of a loop✕
Connections
2 pairs of types, where a type in zio.json.internal uses a type in zio.json.
zio.json.uuid uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json.uuid, while a change to zio.json.uuid can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json.uuid uses a module listed above it, which is the healthy direction.
zio.json.DeriveJsonEncoder uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json.DeriveJsonEncoder, while a change to zio.json.DeriveJsonEncoder can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json.DeriveJsonEncoder uses a module listed above it, which is the healthy direction.
zio.json.DeriveJsonEncoder uses zio.json.internal, so a change to zio.json.internal can break zio.json.DeriveJsonEncoder, while a change to zio.json.DeriveJsonEncoder can't break zio.json.internal.
Position
Below the diagonal: zio.json.DeriveJsonEncoder uses a module listed above it, which is the healthy direction.
zio.json.ast uses zio.json.ast.JsonType, so a change to zio.json.ast.JsonType can break zio.json.ast, while a change to zio.json.ast can't break zio.json.ast.JsonType.
Position
Below the diagonal: zio.json.ast uses a module listed above it, which is the healthy direction.
zio.json.ast uses zio.json.ast.JsonCursor, so a change to zio.json.ast.JsonCursor can break zio.json.ast, while a change to zio.json.ast can't break zio.json.ast.JsonCursor.
Position
Below the diagonal: zio.json.ast uses a module listed above it, which is the healthy direction.
zio.json.javatime uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json.javatime, while a change to zio.json.javatime can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json.javatime uses a module listed above it, which is the healthy direction.
zio.json.javatime uses zio.json.internal, so a change to zio.json.internal can break zio.json.javatime, while a change to zio.json.javatime can't break zio.json.internal.
Position
Below the diagonal: zio.json.javatime uses a module listed above it, which is the healthy direction.
2 pairs of types, where a type in zio.json.codegen uses a type in zio.json.ast.
The types involved
zio.json.codegen.Generator → zio.json.ast.Json
zio.json.codegen.JsonType → zio.json.ast.JsonType
Direction
zio.json.codegen uses zio.json.ast, so a change to zio.json.ast can break zio.json.codegen, while a change to zio.json.codegen can't break zio.json.ast.
Position
Below the diagonal: zio.json.codegen uses a module listed above it, which is the healthy direction.
zio.json.codegen.JsonType uses zio.json.ast, so a change to zio.json.ast can break zio.json.codegen.JsonType, while a change to zio.json.codegen.JsonType can't break zio.json.ast.
Position
Below the diagonal: zio.json.codegen.JsonType uses a module listed above it, which is the healthy direction.
zio.json uses zio.json.JsonCodecConfiguration, so a change to zio.json.JsonCodecConfiguration can break zio.json, while a change to zio.json can't break zio.json.JsonCodecConfiguration.
Position
Below the diagonal: zio.json uses a module listed above it, which is the healthy direction.
zio.json uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json, while a change to zio.json can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json uses a module listed above it, which is the healthy direction.
zio.json uses zio.json.codegen.JsonType, so a change to zio.json.codegen.JsonType can break zio.json, while a change to zio.json can't break zio.json.codegen.JsonType.
Position
Below the diagonal: zio.json uses a module listed above it, which is the healthy direction.
34 pairs of types, where a type in enumeratum.values uses a type in zio.json. Showing 25 of them; the rest are in namespace-graph.json in this report's bundle.
zio.json.JsonCodecStyle uses zio.json, so a change to zio.json can break zio.json.JsonCodecStyle, while a change to zio.json.JsonCodecStyle can't break zio.json.
Position
Below the diagonal: zio.json.JsonCodecStyle uses a module listed above it, which is the healthy direction.
zio.json.JsonCodecType uses zio.json, so a change to zio.json can break zio.json.JsonCodecType, while a change to zio.json.JsonCodecType can't break zio.json.
Position
Below the diagonal: zio.json.JsonCodecType uses a module listed above it, which is the healthy direction.
zio.json.JsonDecoder uses zio.json, so a change to zio.json can break zio.json.JsonDecoder, while a change to zio.json.JsonDecoder can't break zio.json.
Position
Below the diagonal: zio.json.JsonDecoder uses a module listed above it, which is the healthy direction.
zio.json.JsonDeriveConfig uses zio.json, so a change to zio.json can break zio.json.JsonDeriveConfig, while a change to zio.json.JsonDeriveConfig can't break zio.json.
Position
Below the diagonal: zio.json.JsonDeriveConfig uses a module listed above it, which is the healthy direction.
zio.json.JsonEncoder uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json.JsonEncoder, while a change to zio.json.JsonEncoder can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json.JsonEncoder uses a module listed above it, which is the healthy direction.
zio.json.JsonEncoder uses zio.json.internal, so a change to zio.json.internal can break zio.json.JsonEncoder, while a change to zio.json.JsonEncoder can't break zio.json.internal.
Position
Below the diagonal: zio.json.JsonEncoder uses a module listed above it, which is the healthy direction.
zio.json.JsonEncoder uses zio.json, so a change to zio.json can break zio.json.JsonEncoder, while a change to zio.json.JsonEncoder can't break zio.json.
Position
Below the diagonal: zio.json.JsonEncoder uses a module listed above it, which is the healthy direction.
zio.json.ast.Json uses zio.json.JsonStreamDelimiter, so a change to zio.json.JsonStreamDelimiter can break zio.json.ast.Json, while a change to zio.json.ast.Json can't break zio.json.JsonStreamDelimiter.
Position
Below the diagonal: zio.json.ast.Json uses a module listed above it, which is the healthy direction.
zio.json.ast.Json uses zio.json.ast.JsonType, so a change to zio.json.ast.JsonType can break zio.json.ast.Json, while a change to zio.json.ast.Json can't break zio.json.ast.JsonType.
Position
Below the diagonal: zio.json.ast.Json uses a module listed above it, which is the healthy direction.
6 pairs of types, where a type in zio.json.ast.Json uses a type in zio.json.ast.
The types involved
zio.json.ast.Json.Arr → zio.json.ast.Json
zio.json.ast.Json.Bool → zio.json.ast.Json
zio.json.ast.Json.Null → zio.json.ast.Json
zio.json.ast.Json.Num → zio.json.ast.Json
zio.json.ast.Json.Obj → zio.json.ast.Json
zio.json.ast.Json.Str → zio.json.ast.Json
Direction
zio.json.ast.Json uses zio.json.ast, so a change to zio.json.ast can break zio.json.ast.Json, while a change to zio.json.ast.Json can't break zio.json.ast.
Position
Below the diagonal: zio.json.ast.Json uses a module listed above it, which is the healthy direction.
zio.json.interop uses zio.json.interop.http4s, so a change to zio.json.interop.http4s can break zio.json.interop, while a change to zio.json.interop can't break zio.json.interop.http4s.
Position
Below the diagonal: zio.json.interop uses a module listed above it, which is the healthy direction.
Findings mapped to OWASP categories; the specific CVEs/secrets are in the Security dimension cards below and findings.md (redacted only on the public version of this report).
OWASP category
Findings
Severity
A05:2025 — Injection
44
High / Critical
A03:2025 — Software Supply Chain Failures
3
Medium
Roadmap
Begin by addressing the critical lack of architectural decision records by documenting significant design choices in a dedicated folder, ensuring each entry captures the context, decision, and consequences. Simultaneously, resolve the high number of orphaned files, starting with JsonCodec.scala and Generator.scala, to improve codebase freshness and reduce maintenance overhead. Finally, mitigate bus factor risks by identifying and redistributing knowledge for the two off-boarding risks, while continuing to refine documentation quality to ensure installation and usage examples are fully verifiable.
Ranked by impact ÷ effort. "Helps" is the estimated gain on the 0–100 health score.
Do this
Helps
Effort
Dimension
Resolve the 1 No ADRs found finding(s) in ADR Quality.
Record your significant design decisions. Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.
On Scala 3, add `-Yexplicit-nulls` to `scalacOptions` so `String` and `String | Null` mean different things, and type each Java API's result as nullable where it can return null; on Scala 2 (or as a first step), enable WartRemover's `Null` wart (`wartremoverErrors += Wart.Null`) or Scalafix's `DisableSyntax.noNulls = true` so the code holds absence in `Option`. Then pay the assertions down rather than adding to them: each `.nn` is a null the compiler could not rule out — wrap the Java value in `Option(…)` at the boundary, pattern-match on `null` once there, or change the API so the null cannot arrive; an `unsafeNulls` import switches the checking off for everything after it.
Explain in the README how to run the tests. Add a section called Testing to the README in the repository's top folder, saying how to run the test suite.
Every finding carries one of four grades. Three say how serious it is. The fourth says this
survey could not settle it — and it is a grade, not a gap.
Critical — 44
A definite problem that already costs you something and drags the score down: a
missing authorisation check, a dependency with a known exploit, a build that does not reproduce. Failure here
tends to cause failures elsewhere.
Serious — 333
Likely wrong, but not failing yet. It degrades
the codebase over a longer horizon and can cause failures elsewhere — not urgent this week, not something to
carry for two years either.
Minor — 49
Recorded, with no effect on how the codebase functions.
Present so the survey is complete, not because it needs doing.
Could not be resolved — 9
Something this survey could not settle
from the outside, and which could be critical or serious. Either a control was required and no
positive evidence of it exists in the repository — a backup job that nothing shows was ever restored from proves
nothing about restores — or our own analysis could not run over that part of the tree. This is not a clean
result. These are excluded from the score rather than awarded a pass, so the number on the cover neither
rewards nor penalises them: if you act on this survey without resolving them, you carry that risk yourself. Each
one is named under Limitations.
Methodology & how to trust this report
Watchdog is a deep, periodic assessment — run each sprint, monthly, or quarterly, taking the time to go wider and deeper than a quick check and surfacing in one coherent report what you'd otherwise piece together from a dozen separate tools. It scores deterministically: the same commit yields the same score, every run. 61 of 65 evaluated dimensions are computed purely by tools and static analysis (confidence 1.0); 4 documentation/naming judgement(s) are LLM-assisted and labelled advisory. Overall confidence is 0.9 — the weighted average across measured dimensions; it falls as more of the score leans on LLM-assisted judgement and rises when it's fully tool-backed.
Every figure here is one of three kinds, and we label which: ✓ Measured — a deterministic fact (LoC, complexity, coverage); ~ Modeled — an estimate from a stated model (cost, effort, value-at-risk), always a range with its assumptions, never a precise fact; ◐ Advisory — an LLM prose judgement. We never present a modelled estimate as if it were measured. Perfect or absent scores carry their provenance too (ADR-0011): ✓ Tool-verified means the property itself was measured across the surface; ○ Nothing flagged means the probes came back clean — a claim bounded by what a repository can show; ⊘ Not evidenced means a working control (a tested restore, an automated rollback) showed no positive evidence — absence of evidence is not evidence of a control, so it's excluded from the score rather than awarded a spurious 10; ◐ Sampled · advisory marks an LLM verdict over a bounded sample — advisory, never a deterministic measurement.
What we checked — 65 dimensions across the health lenses
Each chip is a dimension scored from real signals across architecture, testing, dependencies, security & compliance, documentation, git-history and code quality — in one coherent pass. A surface report typically covers a handful.
How to trust any code-health report — three questions
Can you open the finding? Real findings cite a repo-relative file and line you can open at the cited line — never an absolute scratch path. Here, 412 of 426 do; the remainder are repo-wide signals — a dimension-level measurement, not a single line. (Every path in this report is repo-relative by construction: paths are normalized at the producer and the report is rejected if any rooted path leaks through.)
Is there a tool behind the number? Every score below names the method that produced it — Roslyn, git, a scanner, or (for a handful of documentation/naming dimensions) an LLM labelled sampled · advisory — not a narrative.
Does re-running give the same result? Run it again on the same commit and the score — and this report, byte for byte — is identical. A report whose numbers move between runs is describing the run, not the code.
This report answers yes to all three. That's the bar to hold any assessment to.
Tools & methods
The actual versions used this run (captured at analysis time) — re-run on the same commit for the identical score.
Method
Backs
Version
Evaluator
Roslyn static analysis
Complexity, cohesion, coupling, dead code, API surface, layering
What ran differently this time — a tool absent, degraded, or that fell back to an estimate. Named openly, not folded silently into the scores. A degraded run also records its exact cause in diagnostics.md.
D8 Code Coverage — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Coverage NOT MEASURED: test source is present (.scala) but the built-in coverage collector has no runner for this repository's ecosystem — so this suite was never executed by it. Not scored — this is a gap in the analyzer's language coverage, not a defect in the repo. To have real coverage read, produce a coverage report in a standard format (`addSbtPlugin("org.scoverage" % "sbt-scoverage" % "<version>")` in `project/plugins.sbt`, then `sbt clean coverage test coverageReport`) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures. You can widen what we reach: optional: produce a coverage report in a standard format (`addSbtPlugin("org.scoverage" % "sbt-scoverage" % "<version>")` in `project/plugins.sbt`, then `sbt clean coverage test coverageReport`) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures — then the real number is read on the next scan.
D11 Test Reliability — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Test source is present (.scala) and this repository declares an sbt build (repository root, 51 test files), but it was not re-run: the analyzer environment could not run it. Not scored — this is a gap in the analyzer's language coverage, not a finding about this repository.
D14 License Compliance — measured, with a gap in what it reached — Watchdog measured this, but not all of it. What it did not reach is a gap on our side — a collector, parser or image we have not built yet — so the numbers on that dimension cover less than the repository, and the part left out is not evidence that it would have passed. This repository declares package.json, but the licence verdict published here was taken over its sbt dependencies. Nothing was read about its npm dependencies' licensing in either direction, and a clean score on this card must not be read as covering them.
D22 Internal API Consistency — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. D22 identifies the intentionally-exposed surface from `IsPackable` and `.Contracts` project names, MSBuild conventions read off the loaded project set. This target exposed no such projects, so the probe never ran; this says nothing about whether the repository has a public API. This repository commits no C#/VB source at all, so there was never an MSBuild project set to read these conventions off. That is OUR side and it is an ADMISSION gap, not an environment fault: it declares a published package (project/plugins.sbt), but no published-package marker D22 reads admitted any project here. D22 DOES collect the public API of every language in this tree, and admits a project only when its manifest makes that ecosystem's publication act in a form the marker recognises — so what is missing is not a collector but an admission rule for the publication act this repository makes, if it makes one. The remedy is a better discriminator for that marker — not a collector, and no change to the scan image can close it. The marker's rules are measured to refuse applications, so one refused repository is the rule working as calibrated; several are the evidence that it is too strict.
D27 Navigability — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Navigability is taken over call sites whose callee resolved. For C# that population includes calls into referenced assemblies; for this language only calls declared inside the repository count, so the abstention threshold reads the repository's use of its standard library as a resolution failure. That is a limit of this analyzer, not a build problem in this repository.
D32 Data Compliance (PII/GDPR) — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. `zio-json/shared/src/main/scala-3/zio/json/macros.scala`, `zio-json/shared/src/main/scala-3/zio/json/union_derivation.scala` produced a parse error, so every rule in this engine's `gdpr.yml` was absent there. That absence is NOT a clean result: these rules detect personal data crossing a boundary into a log sink, a URL or browser storage, and a file that was never parsed cannot report any of the three. The rest of the tree analysed normally and its rows above stand; only these files are unaccounted for. You can widen what we reach: fix the syntax error (or exclude the file deliberately) and re-scan to cover it.
AX2 Stateful singletons — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads Microsoft.Extensions.DependencyInjection singletons in C#, Spring/JSR-330/CDI singletons in Java and Kotlin, module state in Python request handlers, handler state in Go and Swift, Play controllers, Cask routes, Scalatra servlets, Finatra controllers, Akka/Pekko HTTP routes and JSR-330 singletons in Scala, Rails, Sinatra, Grape, Roda and Hanami handlers and Rack apps in Ruby, and module state in F# request handlers (Giraffe, Saturn, Falco, Oxpecker and Suave handlers and ASP.NET Core controllers) only, and this repository's product is written in Scala (http4s), which was left unread, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
C1 Data Protection — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These personal data controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks personal data controls.
C2 Access Controls — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These authorization controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks authorization controls.
P5 DR & Backup — not measured this run — This is a true statement about the repository that carries nothing for its owner to act on, so it is reported here rather than as a defect in their code. No backup/snapshot/replication config, RTO/RPO or restore-procedure documentation was found — and no production persistence was detected either (no data-access packages, no data-store services, no database resources), so there is nothing in this repository whose loss a DR control would recover. If this system's data lives in a platform or ops repo we can't see, that's where the DR evidence belongs.
Repo exclusion declarations: 3 pattern(s) declared (.gitattributes linguist-generated/vendored, .editorconfig generated_code) excluded 0 source file(s) from code-quality scoring. Declarations are the repo's own visible statement that a tree is machine-written or vendored — auditable in any diff, honored by GitHub the same way.
Limitations & what we did not check
Watchdog assesses the repository exactly as committed, and only the repository. By design it does not reach outside the source tree: the live cloud account, the running CI/CD pipeline, the host's branch-protection and approval rules, the production configuration, or a restore actually exercised against a backup are all out of scope. That boundary is a feature, not a gap — a repo-relative, deterministic scan re-runs identically on any commit and every finding opens at a real file and line, where a live audit can neither be reproduced nor traced. The visible consequence is that controls which leave no in-repo evidence are reported as "not evidenced" and excluded from the score rather than awarded a number a static scan cannot justify.
Per-dimension blind spots
For each dimension that was measured, what a static, repo-only scan structurally cannot see — the honest edge of the measurement, not a failure of it.
D1 Cyclomatic Complexity: Cyclomatic complexity counts branches statically — it cannot tell an essential decision tree from accidental tangle, nor see complexity that lives in data or configuration (large switch-case token tables, DSL lexers/parsers, data-as-code rule tables) rather than control flow: a tokenizer's many single-character cases read as high complexity though each branch is trivial.
D2 Cognitive Complexity: Cognitive-complexity heuristics approximate how hard code is to follow; genuine domain difficulty and well-named intent that eases reading are not captured.
D3 God Classes: "God class" is sized by members and responsibilities visible in the type — a deliberately broad facade over a coherent subsystem can read the same as an accidental grab-bag. For front-end JS the file-length check is cohesion-aware (a single-responsibility module — one class/IIFE — earns a 3× threshold), but cohesion is approximated from top-level declarations, not true dependency structure.
D4 Code Duplication: Duplication is token-similarity — an in-process token-stream comparison over sliding windows, with type-aware normalization — so it finds copy-paste, not semantic duplication expressed differently. Committed machine-written code (scaffolded migrations, designer/codegen output, protobuf/OpenAPI stubs, model snapshots) is EXCLUDED — its repetition is the tool's, not the team's — so the score reflects hand-written duplication only.
D5 Coupling: Coupling is measured between projects/assemblies — runtime coupling through DI, reflection, messaging or shared databases is invisible to a static reference graph.
D6 Cohesion (LCOM4): LCOM4 cohesion is syntactic — it infers connectivity from which methods touch which fields/methods by name, not from real runtime behaviour or intent.
D9 Test Distribution: The test-pyramid shape is inferred from project/folder naming and references, with a single test host bucketed per-file by its path tier and content signals — a suite that names tiers unconventionally and gives no per-file signal can still be mis-bucketed.
D12 Dependency Hygiene: Dependency health reads manifests and lockfiles — a vulnerability in a vendored/copied dependency, or risk from how a dependency is actually used, is outside this view.
D13 Secret Scanning: Secret detection is signature- and entropy-based on the current tree — a secret that does not match a known pattern, or one already rotated, will not be flagged (a clean scan is "nothing matched", not "no secrets exist").
D14 License Compliance: License compatibility is checked against declared package metadata and a policy — mislabelled or missing license metadata, and obligations that depend on how you distribute, are not resolved here.
D15 Churn × Complexity Hotspots: Churn hotspots come from git history — a freshly imported or squashed repository has no churn signal, and recent rewrites can mask a historically risky file.
D16 Bus Factor: Bus-factor is a time-decayed model of commit attribution (who has recently, repeatedly worked a file), not comprehension — pairing, review and reading-without-committing spread knowledge it can't see; bot commits and shared accounts still distort it.
D17 Explicit Debt: Acknowledged-debt signals (TODO/FIXME, suppressions, dead code) are textual — undocumented debt that nobody marked, and debt that lives in design rather than annotations, is invisible. Committed machine-written code (scaffolded migrations, designer/codegen output, generated stubs) is excluded — it is never the team's dead code to delete.
D19 Documentation Quality: Documentation quality is judged by an LLM over a bounded sample of docs — it reads what is written, not whether the docs match the running system, and it is advisory, not a measurement. Its critique rows are drawn from a closed category vocabulary and each row means the same thing in every run, so two scans can be compared row by row; the SET that fires is still a sample, and does not repeat exactly. Measured on one frozen input, six scans at one engine SHA: 2-5 critique rows per scan, 8 distinct rows across the six, 3 of those 8 seen in only one scan. So a D19 row is evidence about the documentation, but a COUNT of D19 rows is not a quantity — never read a change in it as an improvement or a regression.
D20 ADR Quality: ADR quality is an LLM read of the decision records present — it cannot know about decisions made and never recorded, and its verdict is sampled and advisory.
D21 Naming Consistency: Naming quality is an LLM judgement over a bounded sample — it assesses clarity/consistency of the names it sees, not domain-correctness, and is advisory.
D26 Project Cohesion: Project focus is sized from members/namespaces per project — a project that is broad by deliberate design reads the same as one that has sprawled.
D28 Secrets (history): Secret-history scanning sweeps the git log for known patterns — a secret that predates the available history, or never matched a signature, is not found (clean means "nothing matched in the history we can see").
D29 Static Analysis (SAST): SAST findings are pattern-based (semgrep) — it finds classes of bug it has rules for; logic flaws, auth/authorization gaps and issues needing runtime context are out of reach (and clean means "no rule matched").
D30 Dependency Vulnerabilities: CVE matching depends on accurate package/version metadata and on the advisory databases — a vulnerability with no published advisory, or in code not declared as a dependency, is not seen. Coverage needs a RESOLVED graph: an unpinned requirements.txt, or a pom without a resolved build, yields partial coverage rather than a clean verdict. An ecosystem the analyzer cannot scan is reported as unmeasured, never as clean.
D34 Knowledge Freshness: Freshness is decayed commit RECENCY, not comprehension — code read often but rarely committed reads as orphaned, and stable code that genuinely needs no changes is penalised the same as forgotten code; bot/squash commits distort it like the bus factor.
D35 Change Coupling: Change coupling is co-change in COMMITS — files split across separate commits, or coupled only through a shared config/build step, read as uncoupled, and a sweeping commit (rename/format) is excluded so it doesn't couple everything. It shows that files change together, not WHY: a high coupling can be a healthy cohesive pair as readily as a hidden leak.
D43 Malicious Dependencies: Only packages some vulnerability database has already NAMED as malicious are seen — a compromise published in the last hours, or never reported at all, is invisible here, and this dimension reading 10 is not evidence that a dependency is trustworthy. There is no typosquat or dependency-confusion analysis: a package nobody has reported is simply absent from the feeds. Coverage is the dependency scan's: an ecosystem that could not be scanned is disclosed as unmeasured, never as clean.
D44 Platform End-of-Life: The support table is FROZEN, so it goes out of date by losing RECALL: a release that ended support after the table was written is missed until the table is refreshed, and this dimension reading 10 is not evidence that a platform is current. Only platforms the repository DECLARES in a place this pass reads are seen — a runtime named only in a Dockerfile (D31's subject), in a CI workflow (D29's), or in a file this pass does not parse (go.mod, a Gemfile ruby directive) is invisible here, which is why a repository declaring none of them abstains rather than scoring. Only frameworks with a PUBLISHED support policy are tracked: React, Flask and Express publish none, so their age cannot be judged and their absence from a report is not a statement that they are supported.
AX10 Code composition: Role is inferred from namespace/folder convention, not semantics — a domain concept living in a folder named "Services" reads as application, and the split is lines-of-code, not business value. The business-logic-share score is a SOFT, FLOORED signal: it contributes to the Architecture lens but is floored at the Critical gate, so an infrastructure-heavy design (a gateway, an ETL, a driver) is legitimately low without being nuked to zero.
M4 Documentation accuracy: Onboarding quality is an LLM read of the docs/setup present — it cannot run the onboarding or measure how long a real new joiner takes; the verdict is sampled and advisory.
P6 Release Hygiene: Rollback/observability controls are inferred from repo artefacts (pipelines, dashboards-as-code) — controls configured in external tooling, with no in-repo trace, cannot be credited.
The LLM boundary
LLM-set scores this run (4): D19, D21, D26, M4 (model: Local LLM). For these, a model reads a bounded sample and sets the numeric score; each names its own sample and method on its card. They are sampled and advisory by design: they vary at the margins between runs and are never a deterministic measurement. Every other score in this report is tool-computed at confidence 1.0.
What it measures: How tangled the control flow is — methods with many branches are hard to test and change.
Method: Cyclomatic complexity per method (1 + decision points), computed exhaustively across production source; test projects separated by convention. Deterministic.
41 method(s) exceeded the cyclomatic complexity threshold of 15; the worst was DeriveJsonDecoder.join at 77. A further 2 method(s) were over the threshold but excluded as flat dispatchers (a long switch/match over independent cases: many branches, almost no nesting), the largest being JsonType.unify at 18 — they are counted neither in the figure above nor in this dimension's score. 1 file carries no cyclomatic complexity row at all for this reason — every one of its over-threshold methods was excluded, so the exclusion is disclosed nowhere in the file itself: zio-json/shared/src/main/scala/zio/json/codegen/Generator.scala (JsonType.unify at 18). They are named here because the per-file figures other dimensions report are taken BEFORE this exclusion, so such a file can show a high maximum complexity elsewhere in this report and nothing here, with nothing to reconcile the two.
+ 29 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Bring the 1 body over 60 down to 60 or less in Cyclomatic Complexity — start with DeriveJsonDecoder.join (cyclomatic 77). — Refactoring it lifts Cyclomatic Complexity from 4.6 to about 5.1/10.
Enforce Cyclomatic Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d1_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: How hard the code is for a person to follow, beyond raw branching.
Method: Cognitive complexity per method (Sonar-style nesting-penalized score), computed exhaustively over production code, excluding test projects. Deterministic.
+ 56 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Bring the 79 bodies over 15 down to 15 or less in Cognitive Complexity — start with DeriveJsonDecoder.join (cognitive 264), DeriveJsonDecoder.split (cognitive 164), Lexer.zonedDateTime (cognitive 123). — This score is capped by its worst body, so a finding fixed alone moves it by almost nothing — the next one down takes its place. Refactoring these 79 together lifts Cognitive Complexity from 2.0 to about 10.0/10, projected with the scoring formula itself and assuming each lands exactly at 15.
Enforce Cognitive Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d2_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D3 · God Classes7.3 / 10Strong✓ Tool-verified
What it measures: Over-large classes that try to do too much ("god classes").
Method: God-class detection by line and method-count thresholds per logical type (partial classes unified), filtered for generated code and registration/contract false positives. Deterministic.
Resolve the 8 FileTooLong finding(s) in God Classes — start with macros.scala (2), SafeNumbers.scala (2), lexer.scala. — One of this dimension's main actionable groups (8 warning-level).
Resolve the 7 TooManyMethods finding(s) in God Classes — start with SafeNumbers.scala (2), lexer.scala, macros.scala. — One of this dimension's main actionable groups (7 warning-level).
Enforce God Classes in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d3_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Copy-pasted code that should be shared instead.
Method: Code duplication via token-stream sliding windows with type-aware normalization (locals masked, type names preserved), density-scored per KLoC of production code. Deterministic.
165 duplicated block group(s) detected. A further 14 rows report members as variants of one another; they aggregate block groups already counted above and are not themselves counted.
+ 71 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Resolve the 16 Duplicated block (5 lines × 2) finding(s) in Code Duplication — start with SafeNumbers.scala (6), macros.scala (3), JsonEncoderVersionSpecific.scala (2). — One of this dimension's main actionable groups (16 warning-level).
Resolve the 11 Duplicated block (13 lines × 2) finding(s) in Code Duplication — start with lexer.scala (4), UnsafeNumbers.scala (3), parsers.scala (3). — One of this dimension's main actionable groups (11 warning-level).
Resolve the 9 Duplicated block (7 lines × 2) finding(s) in Code Duplication — start with macros.scala (3), lexer.scala (2), parsers.scala (2). — One of this dimension's main actionable groups (9 warning-level).
Enforce Code Duplication in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.
Detailed fixes: d4_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D5 · Coupling9.2 / 10Stronggated by 1 serious finding✓ Tool-verified
What it measures: Whether volatile projects sit underneath others that depend on them (so their churn ripples upward), and whether project dependencies form cycles. A widely-depended-on but stable shared/kernel project is healthy, not penalised.
Method: Dependency cycles via elementary-DFS over real .csproj references, plus Martin instability (afferent/efferent) per project. Exhaustive over the reference graph, deterministic.
Coverage: Exhaustive · type-level: afferent/efferent coupling + cycles computed over every production type — the population is all types, not a name convention.
10 production modules (sbt), 0 dependency cycle(s), 0 unstable depended-on module(s). Read from the build's own module declarations; a dependsOn spread (deps: _*) and a project whose directory a helper computes are not visible there; 1 module(s) off the main sequence, with abstractness counted on 8 of the 10 (the rest declare no modelled class or interface, export only macros, declare types in source no model reads, or have no source directory of their own).
Off the main sequence: zioJson
What to do
Resolve the 1 Off the main sequence finding(s) in Coupling. — One of this dimension's main actionable groups (1 warning-level).
Enforce Coupling in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d5_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether a class's methods are focused on a single responsibility.
Method: LCOM4 cohesion per production class with at least two methods: connected components of methods sharing state or calls, computed syntactically. Deterministic, not a proxy.
Coverage: Exhaustive · type-level: LCOM4 cohesion computed over every production class — the population is all types, not a name convention.
D9 · Test Distribution10.0 / 10Exemplary✓ Tool-verified
What it measures: Whether the test suite has a healthy mix of unit / integration / end-to-end tests.
Method: Test projects classified (Unit/Integration/BDD/E2E) from compiled metadata; test methods counted exhaustively across projects with placement-agnostic disk fallback. Deterministic.
691 test methods: 691 unit, 0 integration, 0 BDD, 0 e2e. The Scala suite contributes 691 test case(s) across 36 file(s) in a test source set declaring at least one — every `test("…")`, `it("…")`, `property("…")` and `"…" in {…}` registration and every JUnit `@Test`, which is how munit, ScalaTest, utest, ZIO Test and specs2 declare a case; a case registered under a computed name is not counted, so this is a floor. Its tier split is INFERRED from paths and file names, except sbt's src/it source set, which the build declares.
What it measures: Whether dependencies are current, secure, and not bloated.
Method: Manifest scan via dotnet list package across all projects; worst-signal-per-package deduction (saturating for vulnerabilities, capped-linear for deprecation/outdated) per KLoC. Exhaustive, deterministic.
2 outdated direct sbt declarations. 9 of 10 direct declarations were graded against Maven Central (1 not published there, which is what a private Nexus or Artifactory artifact looks like, 0 declaring a version range rather than an exact version). An sbt declaration names an EXACT version, so the remedy is an edit to the build file — there is no lockfile refresh that would move it. Test-, Provided- and it-scoped declarations are excluded, because a consumer of this project never receives them. A version held in a Scala val is read only when the val is one string literal: sbt is a program rather than a manifest, and evaluating a computed version would invent the measurement rather than take it. Whether any artifact is DEPRECATED or ABANDONED is not graded and cannot be — Maven Central publishes no such marker, and release age does not stand in for one: the most widely depended-upon libraries are routinely the stalest, being finished rather than abandoned. Known CVEs in this dependency graph are D30's question.
Outdated: org.http4s:http4s-dsl_2.13 · ×2
What to do
Enforce Dependency Hygiene in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.
Detailed fixes: d12_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether any secrets (keys, tokens, passwords) have leaked into the code.
Method: In-process native secret scanner (entropy plus signature patterns) across all tracked files; no external tool. A clean result is a measured 10, not no-data zero. Deterministic.
What it measures: Whether the licenses of third-party packages are compatible with your policy.
Method: Third-party package licenses resolved from declared package metadata and checked against the configured policy (allow/deny/copyleft). Deterministic; clean = no incompatible license found at metadata depth.
0 of 8 declared sbt dependency artifact(s) use a banned license. Licences were resolved from the POMs Maven Central publishes, over the production coordinates this repository's 3 sbt build file(s) (build.sbt and project/*.scala) declare with a literal version, directly or through a string-literal val — `%%` resolved to the Scala binary suffix Central publishes under, test-scoped declarations excluded — the same declaration-site closure this analysis reads for dependency currency. sbt has no lockfile a checkout carries, so this is deliberately NOT the transitive closure. 2 further production coordinate(s) are declared with a version the build computes rather than writes as a literal — sbt is a program, and this pass does not run it — and are NOT graded: this verdict covers what the build pins literally or through a string-literal val, not the full graph. A further 2 coordinate(s) are not published to Maven Central — another repository (Google's Maven hosts androidx), a SNAPSHOT, or a private artifact — so their licences are not readable from here and they are outside this verdict. ★ COVERAGE OF THIS VERDICT: it grades this repository's sbt dependencies and nothing else. The repository also declares package.json, and the licences of those dependencies were NOT read by this pass — a gap in this engine's coverage, not a statement about them. So this result says the graded closure carries no banned licence; it does NOT say this repository's licensing is clear.
What it measures: Files that change often and are also complex — the riskiest hotspots.
Method: Per production file churn times cyclomatic complexity over a rolling window, computed from git and Roslyn/JS/Razor analysis. Exhaustive, deterministic per commit date.
Resolve the 1 Hotspot finding(s) in Churn × Complexity Hotspots — start with macros.scala. — One of this dimension's main actionable groups (1 warning-level).
Detailed fixes: d15_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D16 · Bus Factor7.5 / 10Strong✓ Tool-verified
What it measures: Whether knowledge is concentrated in too few people (the "bus factor").
Method: Living knowledge per author via time-decayed commit attribution (6-month half-life, focus weighting) across largest source files. Deterministic, avoids blame's mechanical-refactor false positives.
11 source file(s) have their living knowledge concentrated in one author (≥90% of recent, decayed contribution). The largest is zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala. Counted over 44 of the 87 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.
Off-boarding risk: anonymized user #1 · ×2
What to do
Resolve the 2 Off-boarding risk finding(s) in Bus Factor. — One of this dimension's main actionable groups (2 recommendation-level).
Detailed fixes: d16_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Acknowledged debt left in the code — TODOs, dead code, suppressed warnings.
Method: Roslyn syntactic debt markers (suppressions/TODO/FIXME/HACK/empty-catch/commented-code/Obsolete) plus SymbolFinder dead-code analysis; weighted-debt-per-KLoC density deducted 2.0x per unit. Deterministic, exhaustive.
12 deducted task-comment markers across 16762 LoC (0.1/KLoC) → score 9.9. Task comments only: this repository's language is read without a compiler, so D17's suppression, dead-code and commented-out-code arms did not run and this score counts fewer marker kinds than a .NET repository's would.
TodoComment · ×9project/BuildHelper.scala:234
FixmeComment · ×3project/BuildHelper.scala:238
What to do
Resolve the 9 TodoComment finding(s) in Explicit Debt — start with macros.scala (4), BuildHelper.scala, package.scala. — One of this dimension's main actionable groups (9 warning-level).
Resolve the 3 FixmeComment finding(s) in Explicit Debt — start with BuildHelper.scala, UnsafeNumbers.scala, JsonEncoder.scala. — One of this dimension's main actionable groups (3 warning-level).
Enforce Explicit Debt in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d17_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether the project's documentation is clear, complete, and useful.
Method: Judged by language model at low temperature (0.0-0.1) on a deterministic doc sample (READMEs plus first 25 architecture docs), with two-pass stability filtering. Advisory, sampled.
The repository's root README (ZIO JSON) is excellent at conveying the project's purpose and values, with a strong introduction stating it is 'the best all-round JSON library for Scala' and listing six features. It also gives installation instructions ('add the following line in our `build.sbt` file') that are clipped by the scanner before showing usage examples, leaving those unverifiable. The zio-json-golden README documents its own directory (golden testing) with a clear What-is-golden-testing explanation and two runnable code samples; it is not the root project's overview and does not fall under missing-overview or missing-installation for the repository. Finally, an interop-http4s README points to an external Quickstart example but documents only one directory (the examples subdirectory), so its presence alone cannot flag a root-level gap.
What to do
Improve Documentation Quality — currently 6.0/10. — The repository's root README (ZIO JSON) is excellent at conveying the project's purpose and values, with a strong introduction stating it is 'the best all-round JSON library for Scala' and listing six features. It also gives installation instructions ('add the following line in our `build.sbt` file') that are clipped by the scanner before showing usage examples, leaving those unverifiable. The zio-json-golden README documents its own directory (golden testing) with a clear What-is-golden-testing explanation and two runnable code samples; it is not the root project's overview and does not fall under missing-overview or missing-installation for the repository. Finally, an interop-http4s README points to an external Quickstart example but documents only one directory (the examples subdirectory), so its presence alone cannot flag a root-level gap.
Detailed fixes: d19_recommendation.md.
Do you agree with this assessment?
D20 · ADR Quality0.0 / 10Critical✓ Tool-verified
What it measures: Whether architecture decisions are recorded well (context, decision, consequences).
Method: Per-ADR judgment by language model at low temperature with two-pass stability; confidence is share of ADRs evaluated; enforcement-field presence detected deterministically. Advisory.
What it measures: Whether names — types, methods, variables — are clear and consistent.
Method: Judged by language model at low temperature (0.0-0.1) on a deterministic random symbol sample (fixed size, not exhaustive), with disclosed confidence band. Advisory, sampled.
1 of 1 build units (sbt) flagged as possibly oversized/incoherent.
Projects may be oversized for their cohesion
What to do
Resolve the 1 Projects may be oversized for their cohesion finding(s) in Project Cohesion. — One of this dimension's main actionable groups (1 recommendation-level).
Detailed fixes: d26_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether any secrets were ever committed — scanned across the full git history, not just now.
Method: Secret scan via TWO gitleaks detect passes in an isolated checkout — the full git history, then a second --no-git pass over the working tree as it stands — merged and de-duplicated by (rule, file, line); each match flagged High. Both invocations are recorded in the audit trail. Exhaustive; when the tool is absent, or when its output cannot be parsed into the expected shape, the dimension is WITHHELD as an explicit measurement gap on our side — unscored and excluded from the lens, never a hedged middling score.
What it measures: Real static-analysis (SAST) findings — likely security bugs in the code, any language.
Method: Polyglot static analysis via semgrep across the repo using the pinned, image-baked p/security-audit + p/owasp-top-ten rulesets (no scan-time registry fetch); severity rules (ERROR/WARNING/INFO) map to a full-band severity-weighted score. Exhaustive, deterministic; degrades on parse failure.
Coverage: semgrep pattern rules over all files — exhaustive for the rule set, blind to classes of bug without a rule (clean = no rule matched).
44 finding(s): 0 critical, 44 high, 0 medium, 0 low. 32 unpinned-GitHub-Actions row(s) are reported here but scored by D36 (supply-chain provenance), which measures that posture as `pinned_actions` — one pinning decision is charged once, not once per lens. semgrep hit a parse error in 1 file(s) — `zio-json/shared/src/main/scala-3/zio/json/macros.scala` — so no absence of findings in them is evidence of anything, and nothing in them was analysed. Fix the syntax error (or exclude the file deliberately) and re-scan to cover them.
REDACTED
REDACTED
REDACTED
REDACTED
What to do
Resolve the 10 REDACTED finding(s) in Static Analysis (SAST) — start with REDACTED (4), REDACTED (3), REDACTED (2). — One of this dimension's main actionable groups (10 issue-level).
Resolve the 1 REDACTED finding(s) in Static Analysis (SAST) — start with REDACTED. — One of this dimension's main actionable groups (1 issue-level).
No action in Static Analysis (SAST) — all 32 REDACTED finding(s) are reported here at file:line but scored by D36 (supply-chain provenance), so none is charged to this dimension. — One of this dimension's main actionable groups (32 issue-level, 0 of them charged here).
Detailed fixes: d29_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether any dependency has a known published vulnerability (CVE), direct or transitive, in ANY ecosystem the repository declares — Dart pub, Elixir and Erlang via Hex, Go modules, Java and Kotlin via Maven/Gradle, JavaScript/npm, .NET/NuGet, PHP/Composer, Python/PyPI, RubyGems, Rust/Cargo and Swift.
Method: Dependency-CVE scan across every ecosystem the repository declares, scored ONCE. Three sources are unioned and deduplicated by advisory identity (rule id + alias closure, CVE<->GHSA) scoped to package+version, keeping the worst severity: `osv-scanner --recursive` over osv.dev for Dart pub, Elixir/Hex (and Erlang, whose `rebar.lock` syft first converts to a CycloneDX SBOM the scanner reads, with rows attributed back to the lock), Go, Java and Kotlin via Maven/Gradle (and Scala, whose sbt build's pinned direct declarations are written into a CycloneDX SBOM the scanner reads, with rows attributed back to the build file), npm, PHP/Composer, Python/PyPI, RubyGems, Rust/Cargo and Swift; `trivy fs --scanners vuln` for npm lockfiles; and `dotnet list package --vulnerable --include-transitive` for NuGet (with per-advisory collapse of the project x target-framework fan-out), plus a DECLARED-dependency arm that resolves a published gem's gemspec against rubygems.org where no Gemfile.lock is committed. `SeverityScore(c,h,m,l, normalizer 8.0)`. NotApplicable only when NO ecosystem is readable; if any applicable ecosystem could not be scanned the findings are REPORTED and the score is withheld. Supersedes the npm and OSV arms, retired 2026-09-05.
What it measures: Whether anyone still has living knowledge of each file, or it has been orphaned — last understood long ago by someone now gone quiet. The sibling of the bus factor: D16 asks who owns it, D34 asks whether anyone still knows it.
Method: File orphaning as total living-knowledge decay below one focused-commit's worth within a year, computed per-file from the D16 decay model. Exhaustive, deterministic over fixed history.
13 of 44 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is zio-json/shared/src/main/scala/zio/json/JsonCodec.scala. Counted over 44 of the 87 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.
Resolve the 13 Orphaned file finding(s) in Knowledge Freshness — start with JsonCodec.scala, Generator.scala, GoogleMapsAPIBenchmarks.scala. — One of this dimension's main actionable groups (13 recommendation-level).
Resolve the 1 Orphaned files with no living knowledge finding(s) in Knowledge Freshness. — One of this dimension's main actionable groups (1 recommendation-level).
Detailed fixes: d34_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether files that change together actually belong together — pairs that repeatedly co-change in git history despite having no explicit code dependency, surfacing the hidden/logical coupling (and boundaries in the wrong place) a static scan can't see.
Method: Pairwise co-occurrence over the per-commit file sets in git history (production source only — tests and generated dropped): Degree-of-Coupling = shared ÷ min individual revisions, reported above noise floors (each file ≥10 revisions, ≥5 shared commits, ≥50% strength); sweeping commits excluded. Deterministic over fixed history.
Coverage: Population: PRODUCTION source files only — test and generated files are dropped before pairing, so a class co-changing with its own test (trivially ~100%) can't drown the real production↔production coupling. Pairs ranked by Degree-of-Coupling. A non-source file is never a coupling PARTICIPANT either: documentation, schemas, config and data files are dropped with the rest, so a code↔docs pair — a command and the reference page that restates it — is not reported however strongly the two co-change; nor is coupling that runs THROUGH a build step or config file.
What it measures: Whether the build pipeline provides supply-chain integrity — generated provenance/attestation, signed artifacts (cosign/sigstore), an SBOM, and pinned build actions. Presence of the configuration, not a runtime guarantee.
Method: Supply-chain provenance/signing read deterministically from CI/build config (.github/workflows, .gitlab-ci.yml, azure-pipelines, Jenkinsfile, .circleci) + the release surface: four signals — generated provenance/attestation (SLSA/in-toto/actions-attest), artifact signing (cosign/sigstore/gitsign), an SBOM (syft/sbom-action/*.spdx.json/*.cdx.json), and SHA-pinned build actions — scored 10·present/denom. NotApplicable without a build pipeline. Detects configuration presence, not runtime enforcement.
What it measures: Whether any dependency the repository declares is published as MALICIOUS rather than merely vulnerable — a package that is an attacker's work, in any ecosystem osv-scanner reads. Scored apart from D30 because the answer is binary: there is no safe version to upgrade to, and the fix is to remove the package and rotate every credential it could have read.
Method: The same dependency scan D30 reads, partitioned on the scanner's own classification rather than rescanned: a row is MALICIOUS when its id is in the `MAL-` space (the ossf/malicious-packages feed) OR its `database_specific.cwe_ids` carries `CWE-506` ("Embedded Malicious Code"). Both channels are structural; the summary text is deliberately NOT read, because a malicious-package record whose summary says only "Critical severity vulnerability" is a real shape ([GHSA redacted]) and a text matcher misses it. Scored BINARY: any surviving row is 0, whatever its severity and however many CVEs sit beside it — a hostile dependency is not a quantity. Applicability and degradation are D30's: NotApplicable only when no ecosystem is readable, and an unscannable ecosystem degrades rather than reading clean. SCORED, not informational.
What it measures: Whether anyone still ships security patches for the platform this repository RUNS ON — the runtime it pins and the framework majors its own constraints hold it to. Separate from D12 because the question differs: a current Django on an end-of-life Python is perfectly up to date and completely unsupported, and the fix is a migration rather than a version bump. What the repository says it merely SUPPORTS is never charged.
Method: End-of-life PLATFORM read from the repository's own declarations and graded against a FROZEN, dated table of vendor support dates — no network, no feed, no API, so this dimension answers identically inside a closed scan fence. Two subjects: a RUNTIME the project pins (a single or all-end-of-life TargetFramework, a .nvmrc or .python-version, a requires-python CAP) and a FRAMEWORK major a dependency constraint cannot move off (a caret, tilde or exact version; `vue@^2.7.16` pins Vue 2). A FLOOR is deliberately never charged — `requires-python = ">=3.8"` states what a package SUPPORTS, not what it runs on — and a multi-target project is charged only when EVERY target is out of support. Runtime 4.0/product capped 8.0, framework 1.5 capped 4.5. The table is safe to freeze because a statement about support that ended in the past cannot become false: it loses recall as it ages, never precision, and a test asserts every entry predates the freeze date. Disjoint from D31 (a container image's OS layer) and D29 (the toolchain a CI workflow installs). Abstains when the repository declares no platform this pass reads — never scores it clean.
2 end-of-life runtime(s) and 0 end-of-life framework(s), read from 2 platform declaration(s) and 0 dependency declaration(s). This dimension reads what the repository says about ITSELF — a pinned target framework, a version file, a capped requires-python, a Rust toolchain pin, a framework major a constraint cannot move off. A FLOOR is deliberately never charged: `requires-python = ">=3.8"` states what the package SUPPORTS, not what it runs on, and a well-maintained library declares exactly that while running its own CI on a current release. The end-of-life facts are FROZEN and dated, so this dimension needs no network and answers identically inside a closed scan fence; as the table ages it loses recall and never precision, because a statement about support that ended in the past cannot become false. The OS layer of a container image is D31's question and the toolchain a CI workflow installs is D29's; this row is neither.
End-of-life runtime: Java 14 · ×2.java-version:1
What to do
Resolve the 2 End-of-life runtime finding(s) in Platform End-of-Life — start with .java-version, .nvmrc. — One of this dimension's main actionable groups (2 warning-level).
Detailed fixes: d44_recommendation.md · top locations in Appendix A, every location in findings.md.
Other · Architecture — How the codebase splits by code ROLE — domain, application, infrastructure, test, generated. The significance map behind the knowledge/coupling weighting, and a DDD signal in its own right: a thin domain core under fat infrastructure is the anemic-domain smell, quantified. How each file's role is decided, because the split is only as good as that: a generated name or a build-output tree makes it Generated, a test project makes it Test, and otherwise the file's NAMESPACE and PATH words are matched against fixed vocabularies in a fixed ORDER — domain, then infrastructure, then application — so a file whose words hit two layers is counted under the earlier one. A production file matching none of them counts as application, so that share reads 'application or unclassified' rather than a measured application layer. Roles come from naming convention, never from what the code does. On this repository the split was taken from the source tree on disk rather than from a loaded .NET workspace, so a file's role is decided by its PATH segments alone — no declared namespace was available to add to the evidence — and generated output is excluded from the census entirely rather than counted as a generated share.
Method: Roslyn line-count by code ROLE: every source file classified Domain/Application/Infrastructure/Test/Generated by namespace + path convention (the shared CodeRoleClassifier), then significant lines summed per role. Deterministic; the advisory score is the business-logic (domain+application) share of production code.
Coverage: Population: ALL source files, each bucketed into ONE of five roles (Domain/Application/Infrastructure/Test/Generated) by namespace + path convention — a file whose layer isn't named in the convention falls to Application (the neutral default), and the split is line-count, not semantic depth or business value.
What to do
The domain core is a small share of production code, but most of the rest matched no layer vocabulary at all — so this is not yet an anemic-domain finding. The namespace/path convention could not place that code, which makes the composition above a statement about the naming, not about the design. Name the layers (or check that the repository's conventions differ from the ones this check knows) before reading a thin domain into it.
Other · Architecture — Whether the project-reference graph is acyclic (cycles block independent build/deploy and signal eroding boundaries).
Method: Project reference cycles via elementary-DFS over real .csproj references, using the engine shared with D5/D7; cyclic versus acyclic. Exhaustive, deterministic.
Other · Architecture — Whether dependencies point inward (Domain ← Application ← Infrastructure/Web) — the clean-architecture dependency rule, checked across the project graph.
Method: Layer violations by name-segment inference (Domain/Core to Application to Infrastructure/Web) over the project-reference graph. Exhaustive over all projects, deterministic.
Other · Architecture — Whether interfaces stay focused rather than fat — the Interface-Segregation principle (SOLID 'I').
Method: Roslyn scan: public interface declared-member counts (accessors fold into their property/event); fat-interface threshold (over 15 declared members) flagged per type. Each finding also reports the distinct-OPERATION count — members counted by name, so an overload group counts once — which decides whether it states the caller-side ISP harm or the implementer-side burden of an overload set. TypeScript: exported interfaces that declare behaviour, counted over their REQUIRED operations (method signatures and function-typed properties with no `?`, once per signature) — data-shape interfaces and ambient .d.ts declarations are outside the population; JavaScript declares no interfaces and is not applicable. Deterministic, type-level.
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AX8 · Test isolation10.0 / 10Exemplary✓ Tool-verified
Other · Architecture — Whether production projects stay free of references to test projects — tests may depend on production, never the reverse.
Method: Csproj graph: each production project checked for references to test projects (identified by test-framework presence, not name). Zero violations is clean. Deterministic.
Other · Code Health — Unreviewed-generation residue in this repository's Scala: methods whose whole body is still `???` or a "not implemented" throw where nothing overrides them, and placeholder text (lorem ipsum, changeme/replace_me…) left in strings of non-test, non-generated code. Scored as a quality signature, never as a claim about authorship.
Method: Roslyn syntax scan: NotImplementedException throws and placeholder string literals in non-test, non-generated shipped code. Deterministic, code-shape signature.
Other · Code Health — Unfinished work detected by code SHAPE, not keywords, in this repository's Scala: methods whose body is `???` or only throws a "not implemented" error, methods that take inputs and return a constant or do nothing, dead `if (false)` branches, and skeleton classes most of whose methods are holes.
Method: Roslyn syntax scan: incompleteness by code shape (constant-returning methods, async-never-await, #if false branches, guards that return what the code already falls through to, tests an earlier guard already decided, comparisons against NaN, skeleton types), not keyword-gated. Deterministic, code-shape heuristic.
A test is skipped/ignored — coverage that looks present but never runs. Re-enable it or delete it so the green run means something. (×2) — zio-json/jvm/src/test/scala/zio/json/JsonTestSuiteSpec.scala:43, zio-json/shared/src/test/scala/zio/json/ConfigurableDeriveCodecSpec.scala:354
What to do
Clear the softer debt: re-enable or delete `ignore`d and `pending` tests, decide whether each empty method or UnsupportedOperationException is deliberate (and say so in a comment), and replace a bare `// scalastyle:off` or `@nowarn` with targeted, justified suppressions.
Maturity · Maturity — Whether the repo and its projects have a README, and whether it's substantive and current.
Method: Filesystem scan: README presence, word count, and headings for depth; git history for staleness. Exhaustive across root and project dirs, deterministic.
What to do
Explain in the README how to run the tests. Add a section called Testing to the README in the repository's top folder, saying how to run the test suite.
Add an 'Architecture' / 'How it works' section to the root README — the high-level shape.
Add a README to the 2 of 3 project(s) that lack one — worth up to 1.3 pts.
Maturity · Maturity — Whether key decisions (ADRs) and the high-level shape (C4/diagrams) are written down.
Method: Filesystem scan: ADR folder/naming conventions or content, plus Mermaid/PlantUML/C4/architecture.md discovery. Exhaustive, deterministic.
No Architecture Decision Records found — no conventional ADR directory, no numbered `NNNN-title` documents in any markup this check reads, and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.
No C4/Structurizr/PlantUML/Mermaid/Graphviz/D2 diagram, no drawn diagram named for the architecture, no file named `architecture` or `design` in any markup this check reads, and nothing in the README, docs or contributor guides that announces the shape — no `## Architecture` heading, no "architecture overview"/"high-level design" phrasing, no "the architecture is …" introduction, no guided code tour. A shape laid out in prose that never names itself as the architecture is not visible to this check, and neither is one kept outside the repository, so this row reports the absence of a re-findable shape document — not evidence that nobody wrote the shape down.
What to do
Record your significant design decisions. Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.
Add a C4 context/container diagram (Structurizr, PlantUML or Mermaid) or an architecture.md overview.
Maturity · Maturity — Whether the README actually describes the code that exists (LLM-judged, advisory).
Method: Judged by language model at low temperature: README accuracy versus actual projects, within a disclosed tolerance. Advisory, not a measured number.
Readiness · Readiness — Whether an automated pipeline builds and tests every change.
Method: Filesystem scan: CI workflow files (.github/workflows, .gitlab-ci.yml, etc.) for build and test stages. Exhaustive, deterministic.
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P10 · Library API & versioning10.0 / 10Exemplary○ Nothing flagged
Readiness · Readiness — For a library: a deliberate (small) public API surface and explicit semantic versioning so consumers can depend on it safely.
Method: Roslyn scan: public API surface area and semantic-versioning markers (SemVer attributes, changelog entries) for libraries; off .NET, a library is the ecosystem's publication act (an npm package that is not private and names an entry point, a PyPI distribution with a build system, a Rust library crate, a Maven/Gradle module that publishes, a Go module with no package main, a gemspec, a Composer library, a SwiftPM library product, a pub.dev or Hex package), its surface is the share of types the language model records as public (Rust, Swift, Java, Kotlin, Go, Dart; not measured where the model records no type visibility or, as in TypeScript, only module-level export), and its version is read from the manifest, a semver CHANGELOG, release tooling or semver git tags. Exhaustive, deterministic.
Readiness · Readiness — Whether SAST, secret/dependency scanning and performance benchmarking are wired in (presence, not runtime).
Method: Filesystem scan: SAST configuration, dependency-update automation, secret scanning, and a benchmark harness or benchmark step — in this repository's own ecosystem. Exhaustive, deterministic.
What to do
Your ecosystem's static analyzer is declared as a dependency but is not wired into CI — run it as a required step on push/PR (e.g. `composer phpstan` / `mix sobelow` / `bundle exec brakeman` / the spotbugs Gradle task / `sbt scalafixAll --check` / `golangci-lint run` / `rebar3 lint`) so a regression fails the build instead of relying on someone running it locally.
Dependabot is configured but does not watch `npm` — add that `package-ecosystem` entry to REDACTED so those dependencies get the same automatic update and advisory pressure as the ones it already covers.
Add gitleaks/trufflehog in CI to block PRs that introduce committed secrets.
Readiness · Performance — Whether the code protects its performance with benchmarks — a benchmark suite, allocation/memory measurement, and (ideally) a CI gate. Presence is credited as a bonus, never a deduction.
Method: Repo + source scan: BenchmarkDotNet referenced (csproj/source), [Benchmark]/[MemoryDiagnoser] attribute counts, and a benchmark step in CI; off .NET, the same ladder over Go testing.B, Rust criterion/#[bench]/divan, JMH/kotlinx-benchmark, pytest-benchmark/asv/pyperf, tinybench/mitata/vitest bench/benchmark.js and Swift package-benchmark — scored as a bonus ladder (absence is neutral, never a deduction). Deterministic, presence detection.
Readiness · Performance — Whether the code is written to minimise allocations so it doesn't pressure its host's memory manager — buffer/slice views over copies, object pooling, stack or value-type allocation, and buffer writers. Reward-only: credited where present, never penalised where a simpler style is fine.
Method: Production-source scan: density (per 1k LoC) of allocation-aware APIs — in .NET Span/Memory, ArrayPool/ObjectPool, stackalloc, ValueTask, value-type structs, IBufferWriter, string.Create, SkipLocalsInit; off .NET, with comments and strings blanked, Go's sync.Pool, preallocated slices/maps, Grow, strconv.Append* and buf[:0] reuse; the JVM's NIO buffer views, MemorySegment, primitive collections, pools and literal presizes (plus Kotlin primitive arrays and value classes, Scala AnyVal and @specialized); Swift's reserveCapacity, ContiguousArray, withUnsafe* access and ~Copyable. Activated off .NET on the same floor (400 lines, and benchmarks or 8 uses); Rust and garbage-collected scripting languages are not applicable. Reward-only. Deterministic, syntax/text detection.
What to do
Raise allocation-aware density on the hot paths — currently 9 use(s) across 17,319 production line(s) (~0.5/1k). More of the idioms below on the allocation-heavy paths climbs this toward 10.
Scala: on hot paths, make small wrappers value classes (extends AnyVal), @specialized generic code over primitives, use primitive collections, and presize builders.
Readiness · Performance — Whether asynchronous code stays responsive — it avoids sync-over-async blocking (a .NET .Wait()/.GetAwaiter().GetResult(), a time.sleep or blocking HTTP call inside a Python coroutine, a *Sync call inside an async JavaScript function, block_on inside a Rust async fn, runBlocking inside a Kotlin suspend function, block() inside a Reactor publisher) that stalls a thread or event loop and risks deadlock, and, where the code is a reusable library on .NET, awaits with ConfigureAwait(false) so it never captures and stalls its caller's context.
Method: Production-source scan: sync-over-async blocking counted everywhere — .Wait()/.GetAwaiter().GetResult() in .NET; off .NET, read from the language model, a blocking call inside an async function (Python, TS/JS, Rust, Kotlin, Swift, Dart) or inside a Java method returning a Reactor Mono/Flux or a Scala method returning a Future or effect — and, for a .NET library with ≥5 awaits, the share of awaits using ConfigureAwait(false). Deterministic, syntax/text detection.
Other · Code Health — Whether the code avoids sync-over-async (deadlock-prone blocking on tasks) and async void.
Method: Roslyn syntax scan: async methods scanned for .Wait()/.GetAwaiter().GetResult() and async-void outside event handlers. Deterministic, hard fact per invocation.
Other · Code Health — Whether any branch is dead by construction — a switch arm whose label can never equal a case-normalised subject, or an `else if` whose predicate the arm above has already swallowed.
Method: Roslyn syntax + semantics: switch labels compared against the subject's own case normaliser, and if/else-if chains checked for a literal an earlier arm's containment test already swallows. Deterministic, provable per finding. Advisory.
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X13 · Undrained process stream10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a child process that has BOTH standard streams redirected drains both — reading one to the end while the other is never read deadlocks once the child fills the unread pipe.
Method: Roslyn syntax + semantics: ProcessStartInfo launches with both streams redirected, checked for a drain of each stream across the enclosing type. On a repository with no .NET source it reads JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not) with the same rule: a `spawn` imported from `child_process` whose stdout and stderr are both pipes (no options, no `stdio`, or `stdio` of `'pipe'`), bound to a local that never leaves its scope, where exactly one of the two streams is read, the other never, and the child’s `close`/`exit` (or the read stream’s end) is awaited; a shell redirect in the call’s arguments or a `kill` of the child suppresses it. The same rule reads Python’s `subprocess.Popen`, Dart’s `Process.start`, Ruby’s `Open3.popen3`, and Scala’s JDK process starts (`new ProcessBuilder(…).start()` with no `redirectErrorStream`/`redirectError`/`redirectOutput`/`inheritIO`, `Runtime.getRuntime.exec`) where one of `getInputStream`/`getErrorStream` is read and the other never while `waitFor()` is called or the read stream is read to its end. Deterministic, provable per finding. Advisory.
Other · Security — Whether a hand-rolled public/private IP check can be walked past — a method that unwraps IPv4-mapped IPv6 but returns the opposite verdict for the same host written as IPv4-compatible, 6to4 or NAT64.
Method: Roslyn syntax + semantics: methods that unwrap IPv4-mapped IPv6 and hand-roll IPv4 range carve-outs, checked for whether the IPv6 branch also accounts for the IPv4-compatible, 6to4 and NAT64 embeddings. Deterministic, provable per finding. Advisory.
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X15 · Unvalidated length from an untrusted reader10.0 / 10Exemplary○ Nothing flagged
Other · Security — Whether a length read out of the stream being parsed is bounded before it is allocated or read — an unchecked count taken from the input lets the input choose the allocation.
Method: Roslyn syntax + semantics: integer lengths read from a BinaryReader and spent on a bulk read or an array allocation, checked for any comparison or bounding call on the value anywhere in the method. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether a loop that shortens a string until it fits a length budget has a floor — one with none grinds the value down to the empty string, or past it into a negative-length `Substring`.
Method: Roslyn syntax + semantics: while/do loops whose body's only effect on a string is to drop its last character, checked for whether anything — a direct comparison on the length, a body guard, a break — bounds that length below. On a repository with no .NET source it reads JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not) with the same rule: a `while`/`do` loop whose body’s one assignment to a value is `x = x.slice(0, -1)` or `x = x.slice|substring|substr(0, x.length - 1)`, driven by a condition that reads `x.length` only as a term of a larger expression — never compared directly, never tested for truthiness, and with no other read of `x` — and whose body has no `break`, `return`, `throw` or `if` naming `x`. Deterministic, provable per finding. Advisory.
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X17 · Uncapped recursion over a caller-supplied document3.5 / 10Weak✓ Tool-verified
Other · Security — Whether a walk that recurses through a JSON/XML tree handed in by its caller bounds how deep it will go — an uncapped walk lets the document's nesting choose the stack depth, and the resulting StackOverflowException cannot be caught.
Method: Roslyn syntax + semantics: methods that take a JSON/XML document node and call themselves with a child of it, reachable from an externally-callable member of the same type that accepts a document, checked for any depth parameter, descent counter or threaded arithmetic anywhere in the walk. On a repository with no .NET source it reads TypeScript off the engine’s own token stream (test, vendored, generated and minified paths and `.d.ts` not) with the same rule: a function or method with a parameter typed as a document value — `unknown`, `any`, `object`, `Record<string, unknown|any>`, a JSON alias (`JsonValue`, `JSONObject`, …) or a DOM node global the file does not rebind — that calls itself (bare, or through `this` for a method, or hands itself to a call over the value as in `value.map(walk)`) with something it took out of that value and never through an ancestor accessor such as `closest()` or `parentElement`, that is exported or reached from an exported function (a public method of the same exported class) taking such a value, and that names no depth, level, nesting, recursion, remaining or budget anywhere and threads no `+`/`-` arithmetic through a self-call. Plain JavaScript is not read: with no annotation nothing tells a parsed document from a tree the code built itself. Deterministic, provable per finding. Advisory.
`JsonType.unifyTypes` is public and takes `json: Json` from its caller, and it calls itself at line 211 with a piece of `json`, not as a tail call the compiler turns into a loop — and nowhere in `JsonType.unifyTypes` is there a depth parameter, a descent counter, or any other cap. The walk therefore spends one stack frame per LEVEL of the value it is handed, so the nesting of the caller's document — not this code — decides how deep the stack goes. On the JVM's default 1 MB thread stack a walk like this one throws `StackOverflowError` from about 500–2,000 levels on a cold first call and 6,000–17,000 once warmed up (OpenJDK 21 and 25), while `ujson.read`, Jackson's `readTree` before 2.15 and circe before 0.14.16 accept any nesting (2,000,000 levels from 4 MB) and circe 0.14.16 accepts 4,096 — on a cold JVM even play-json's cap of 1,000 is past the point the walk fails. `StackOverflowError` is not `NonFatal`: `Try`, `case NonFatal(e)` and `recover` do not stop it, and in a `Future` on the global execution context it leaves the future forever incomplete. Thread a depth argument through `JsonType.unifyTypes` and reject the value past a fixed maximum, or rewrite the descent with an explicit stack. — zio-json/shared/src/main/scala/zio/json/codegen/Generator.scala:211
What to do
Each finding names the externally-callable member that accepts the document and the self-call that descends, and states that no depth parameter or counter exists anywhere in the walk. Confirm from the two, then thread a depth argument through the walk and reject documents past a fixed maximum, or rewrite it with an explicit stack.
Other · Code Health — Whether a type's disposal matches what it OWNS — releasing what it created, leaving alone what it was handed, and not declaring a finalizer for state that has nothing unmanaged to finalize.
Method: Roslyn syntax + semantics: every assignment to a disposable field is read to decide whether the type CREATED the value or was handed it, and the type's disposal is checked against that answer — an injected interface it disposes, a value it constructed and never releases, a finalizer on a type holding nothing unmanaged, and a disposable local whose every reference is a plain member read. A value handed to a container that disposes its contents (a parent control's `Controls` collection, a component `IContainer`) is released by that container and is not reported; generated code is out of population. On a repository with no .NET source the same ownership questions are read in JavaScript/TypeScript off the engine’s own token stream (test, vendored, generated and minified paths not): a class declaring `dispose()`, `[Symbol.dispose]()` or `[Symbol.asyncDispose]()` that disposes a field it was handed through a constructor parameter typed as a repository interface or resolved by a dependency-injection container; that assigns a field only ever from `new X(…)` of a disposable class and neither releases it anywhere in the class nor names it in its disposal member or a method that member calls, nor hands it to anything else; and a `const`/`let` local built from literals only whose every reference opens a statement operating on a non-release member of it. A class is disposable when every repository declaration of its name declares or inherits a disposal member, or when it is a documented library disposable (`vscode` EventEmitter, CancellationTokenSource and Disposable; three.js geometries, materials, textures, render targets, renderers, controls and composers). The finalizer arm has no JavaScript counterpart: a class cannot declare one. Dart is read for the owned-and-never-released arm: a Flutter `State` (or a class declaring `dispose()`/`close()`) whose library-private field is written only with direct creations of a framework controller, `FocusNode`, `StreamController` or periodic `Timer` (or a `.listen(…)` into a field declared `StreamSubscription`), which nothing in the class or its library releases (`dispose`/`close`/`cancel`) and which is never handed on except as a named argument. Ruby is read for the owned-and-never-released arm and the abandoned-local arm: a class declaring an instance `close`, `dispose`, `shutdown`, `stop`, `disconnect` or `terminate` whose instance variable is written only with a blockless core descriptor creation (`File.open`/`new`, `Tempfile`, `Dir.open`, `IO.popen`, the `socket` and `openssl` socket classes) that no method of the class closes and that is never handed on (passed, returned, stored, exposed by `attr_reader`, delegated) — a class whose superclass or mixin lies outside the repository is not judged — and a blockless creation read through and dropped (`File.open(path).read`) or held in a local that is never closed, returned, passed or stored (a `&:read` block-pass, an `autoclose: false` borrow and a `fileno` hand-over are not abandonment). PHP is read for the same two arms: a class (not a trait, and not one using a trait) declaring an instance `close`, `dispose`, `shutdown`, `stop`, `disconnect` or `terminate` whose `private` property (or a `final` class's `protected` one) is written only with a direct core `fopen`, `tmpfile`, `popen`, `proc_open`, `fsockopen`, `stream_socket_client`/`server` or `opendir` that nothing in the class closes (`fclose`, `pclose`, `closedir`, `unset`, a reset to `null`) and that is never handed on, and a handle held in a function's local, or read through as the argument of a reader, that is never closed, returned, passed, captured or stored; a `php://` stream, `curl_init`, `SplFileObject`, `PDO` and a function the repository declares under the core name are not read. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether a method that temporarily changes state belonging to the whole process — the working directory, an environment variable — puts it back on EVERY path: a restore reached only when nothing throws leaks the change to the rest of the process.
Method: Roslyn syntax + semantics: method bodies that write the process working directory or an environment variable and write it back in the same body, checked for whether that restore sits in a `finally`/`catch` or only on the straight-line path. On a repository with no .NET source the same rule reads production JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not): `process.chdir`, `process.env.NAME =`/`["NAME"] =` and `delete process.env.NAME`, and Deno’s `Deno.chdir`/`Deno.env.set`/`Deno.env.delete`, paired per function body (a nested function or arrow is its own body, and module top-level code is none), where the last write puts back a local the body captured from the same global or deletes a variable the first write set, with at least one statement between them; a write in a `catch`/`finally` of that body silences it. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether an argument guard throws the exception its own condition describes — a guard that rejects a value for being EMPTY and reports it as `NullPointerException` (Java, Kotlin, Scala), `ArgumentError.notNull` (Dart) or `ArgumentNullException` (F#'s `nullArg`) tells the caller a parameter was null when it provably was not.
Method: Roslyn syntax: `throw new ArgumentNullException(nameof(p))` statements controlled by an `if`, whose condition is read for a test that is true of a NON-null `p` — an emptiness test that dereferences it (`p.Count == 0`, `!p.Any()`) or a BCL predicate documented true of the empty value (`string.IsNullOrEmpty(p)`). Deterministic, provable per finding. Advisory.
Other · Code Health — Whether a `when` guard is free of side effects — a guard that increments a counter or assigns while deciding whether its arm matches applies that change during PATTERN MATCHING, on an arm that may not be selected, and skips it entirely when a short-circuit to its left answers first.
Method: Roslyn syntax: `when` guards on case labels and switch-expression arms, read for a mutation (`++`/`--`/assignment) sitting in a position the guard's own `&&`/`||`/`??`/`?:`/`?.` can skip. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether a method that TAKES a lock or semaphore and gives it back from a flag-guarded `finally` returns the value that flag implies — reporting success while the guard hands the primitive back admits a second caller the exclusion was there to keep out, and reporting failure while the guard keeps it leaves nothing to ever give it back.
Method: Roslyn syntax: `try` statements whose `finally` releases a synchronisation primitive under a bare local-bool guard, where the method also TOOK that same primitive before the `try`, checked for a `return` of a bool literal whose value disagrees with the flag state the method's own straight-line assignments put it in. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether the work a diagnostic log line costs is paid only when that line is wanted — C# evaluates a call's arguments BEFORE the call, so a trace/debug message joined or projected out of a collection is built in full on every pass, and then discarded by a sink the shipped configuration leaves switched off.
Method: Roslyn syntax: log calls at a diagnostic level (a `Log`-prefixed method naming Trace/Debug/Verbose, or a bare `Debug`/`Trace`/`Verbose` on a receiver named for a logger), whose argument list is read for a call whose cost scales with a sequence — a LINQ operator, a materialisation, `string.Join`, a serializer — with no enclosing level check or conditional-compilation region. On a repository with no .NET source it reads JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not) with the same rule: a `debug`/`trace`/`verbose` call on a receiver named for a logger, or a `log`-prefixed method naming the level, whose argument calls an array operator (`map`/`filter`/`reduce`/`sort`/…), `Array.from`, `Object.keys/values/entries`, `JSON.stringify`/`util.inspect` over anything but a literal, or an array `join` — outside any arrow or function passed as an argument, which the logger calls only when the level is on — with no enclosing `if`, `&&` or `?:` whose condition names a level, a level string, or the `NODE_ENV`/`__DEV__`/`DEV` build switch. Deterministic, provable per finding. Advisory.
Do you agree with this assessment?
X24 · Document value interpolated into markup unescaped10.0 / 10Exemplary○ Nothing flagged
Other · Security — Whether text read out of the document being converted is escaped before it is written into generated markup — a value the document's author chose, interpolated into an attribute the surrounding literal delimits, can close that attribute and open another.
Method: Roslyn semantic model over the whole compilation: a string-typed `Value`/`InnerText`/`InnerXml`/`Text` member declared inside `DocumentFormat.OpenXml` or `System.Xml` is a taint SOURCE, propagated through assignments, returns, arguments, tuple elements and string composition to its transitive closure, then read at interpolated-string holes that sit in a markup position the surrounding literal itself delimits. Escaper/encoder calls and enclosing validator conditions cut the flow. Flow- and container-insensitive by construction. A second arm needs no provenance at all and reports a type that CONTRADICTS ITSELF — the same expression escaped at one delimited markup hole and interpolated raw at another hole in the same markup position of the same type, which the type's own escaping proves is a defect without knowing where the value came from. On a repository with no .NET source it reads JavaScript/TypeScript off the token stream with the same rule: a DOM read of raw document text (`getAttribute`, `textContent`, `innerText`, `nodeValue`) is the source, propagated through local bindings and string composition, and judged at template-literal and concatenation holes in the same two delimited markup positions; escapers and validating conditions cut it, and documentation-site, test, vendored and minified scripts are not read. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether a value the caller is invited to supply is the value the type actually uses — a constructor parameter stored in a private field that nothing ever reads while the default it was given is spelled out a second time at the site that should have read it, a keyed lookup that falls back to a different setting than the one its key names while the same type falls back to the matching one for that same key, or a culture-sensitive parse given no format provider by a type that feeds its own settable culture to the same kind of parse elsewhere, or a number an entry point writes to standard output under the host's culture while the same entry point formats with the invariant culture elsewhere. Either way, every caller who supplies a value silently gets something else.
Method: Roslyn syntax: private instance fields of a non-partial type assigned in a constructor from one of its own parameters with a `??` fallback, checked for whether anything in the type body reads the field and whether that same fallback expression is spelled out again outside the constructor; and `??` fallbacks onto a member access from a lookup call carrying exactly one string literal, grouped by that key across the type and checked for a fallback member whose folded name disagrees with the key while a sibling site for the same key agrees with it. On a repository with no .NET source the first two arms read JavaScript/TypeScript off the engine’s own token stream (tests included, bundles and vendored paths not): a `#x`, `private` or `private` parameter-property instance field filled in the constructor from a parameter (or one member of one) through `??`/`||` or a parameter default, never read anywhere in the file by name, whose constructed default is spelled again in the class body; and `lookup("key") ?? s.member` grouped by key per class, or per module outside every class. The culture arm has no JavaScript counterpart: its parses take no locale. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether a value handed from a callback to the body that waits on it crosses on something built to be crossed — a `Queue<T>`/`List<T>`/`Dictionary<K,V>` written inside an event handler and read back outside it is mutated by two flows at once, and the semaphore or completion source beside it orders how MANY items exist while leaving the collection's own head, tail and backing array unprotected.
Method: Roslyn syntax: method, accessor, local-function and lambda bodies that declare BOTH a non-thread-safe generic collection (`Queue`/`Stack`/`List`/`Dictionary`/`HashSet`/`Sorted*`/`LinkedList`) and a synchronisation primitive (`SemaphoreSlim`/`TaskCompletionSource`/`ManualResetEvent(Slim)`/`AutoResetEvent`/`CountdownEvent`) as locals, then read for a `+=`-registered lambda that raises that primitive while the body outside every lambda waits on it — and, in that scope, a mutating call on the collection inside the lambda paired with a mention of it outside. Any `lock` in the scope abstains it. On a repository with no .NET source the same handoff is read in Java off the engine’s own token stream (test source sets, vendored and demonstration paths not): an `ArrayList`/`LinkedList`/`ArrayDeque`/`PriorityQueue`/`Hash*`/`LinkedHash*`/`Tree*` local and a `CountDownLatch`/`Semaphore`/`CompletableFuture` local, a lambda or anonymous class that raises the primitive and mutates the collection, and a wait outside it; any `synchronized` or `lock()` abstains the body. Because each of those primitives orders what the callback wrote before raising it, only a touch that provably overlaps the callback is convicted: one after the registration and before the next wait, or one in a loop registered-before, waiting on every pass and not declaring the collection. Deterministic, provable per finding. Advisory.
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X27 · Collection changed while being enumerated10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a `for` comprehension or `foreach` leaves the mutable collection it is walking alone — an `ArrayBuffer` or `ListBuffer` counts its changes and its iterator checks the count, an `ArrayDeque` (and `mutable.Queue`/`mutable.Stack`) is walked by index up to its starting length, and a `java.util` collection walked through `asScala` is fail-fast, so a body that adds to or removes from the very collection the loop is walking makes a later step throw `ConcurrentModificationException` (`IndexOutOfBoundsException` for a deque) and the remaining elements are never seen.
Method: Roslyn syntax + semantics: `foreach` statements whose body calls a structural mutator (`Add`/`Remove`/`Clear`/`Insert`/…) on the very expression the loop is enumerating. Two arms. ARM A — the source is a concrete fragile BCL collection, or a live `Keys`/`Values` view over one, and the mutator resolves to that same collection's own member; concurrent and immutable collections and arrays are outside the population by construction, since their enumerators survive a structural change. ARM B — the source is an argument-less accessor CALL on a receiver whose body is in source: the accessor must return a stored field VERBATIM and a sibling member must structurally change that same field, both read off the implementations rather than from the members' names. A mutation the loop provably exits immediately after (`break`/`return`/`throw`/`goto`), or one written inside a nested loop or a lambda, is counted and never reported. Deterministic, provable per finding. Advisory.
Do you agree with this assessment?
X28 · Index access outside its own emptiness guard10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a condition that tests a value for emptiness indexes that same value only where the test holds — an `||` written one parenthesis too far to the left leaves an index access outside the guard beside it, so the empty case the guard exists to anticipate reaches the index and throws.
Method: Roslyn syntax only, no semantic model: the OUTERMOST `&&`/`||` of every boolean condition, read for a symbol the condition tests for emptiness (`string.IsNullOrEmpty`/`IsNullOrWhiteSpace`, a `Length`/`Count` comparison against a literal, `Any()`, a `Length`/`Count` pattern, or a comparison against `""`) and ALSO indexes. Each `symbol[...]` access is placed by a boolean-reachability walk from the access up to the outermost connective: an access is COVERED when some enclosing step has it in the right operand and the left operand, under the truth value that step forces, proves the symbol non-empty — a recursion over `&&`/`||` whose true- and false-directions are asymmetric. A finding needs BOTH an uncovered access and a covered one on the same symbol in the same condition, which is the agreeing twin that separates a misplaced parenthesis from an unrelated length test. Bare index accesses with no emptiness test in the condition are neither counted nor reported; a non-identifier receiver and a lambda nested inside the condition are outside the population. Deterministic, provable per finding. Advisory.
Do you agree with this assessment?
X29 · Per-element action decided by a fixed element10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a decision taken once per element is taken ABOUT that element — a test inside a counted loop that reads a fixed subscript of the very collection its guarded statement indexes by the loop variable applies element zero's answer to all of them, so the elements that differ from it are all handled wrongly, and in the same direction.
Method: Roslyn syntax only, no semantic model: every `for` statement declaring exactly ONE loop variable, and every `if` inside its body that is not under a nested loop or a lambda. A site enters the population when the `if`’s condition never mentions the loop variable while the statement it guards indexes some collection by that variable ALONE (`c[i]`; `c[i + 1]` and `c[i, j]` are outside it). A finding additionally needs the AGREEING TWIN at the same-collection grain: the condition must read THAT SAME collection at a subscript that does not move — written into the condition, or reached through a local declared BEFORE the loop, so an alias bound inside the body is not followed. Both collection expressions must be simple identifiers. On a repository with no .NET source the same rule reads JavaScript/TypeScript off the engine’s own token stream (tests included, bundles and vendored paths not): a `for (let|var|const x = …; …; …)` with one declarator and a braced body, an alias followed only when it is declared before the loop in a block that encloses it and never assigned inside the loop. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether exceptions are handled rather than silently swallowed or rethrown with lost stack traces.
Method: Roslyn syntax scan: every catch clause counted; empty catches and bare rethrows flagged. Population is all catch clauses, not estimated. Deterministic, hard fact.
Do you agree with this assessment?
X30 · Support guard that admits what it rejects10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a guard written as a NEGATED `||` says what its author meant — `!(a || b || x != k)` is `!a && !b && x == k` by De Morgan, so a bail-out that mixes capabilities the code needs with a fault it refuses turns inside out: it fires only where the capabilities are ABSENT, and lets every value the fault term names walk straight into the body that cannot handle it.
Method: Roslyn syntax only, no semantic model: every logical-not whose operand is a parenthesised `||` chain of two or more disjuncts, flattened (a left-nested `a || b || c` read once would see `(a || b)` as one disjunct). A site enters the population on that shape alone. A finding additionally needs the disjuncts to DISAGREE in polarity: at least one bare boolean read — an identifier or member access, never an invocation, which is a predicate rather than a capability flag — and at least one `x != <constant>`, the only form that negates into an exact-value pin (`== null` negates into a looser requirement and is outside the fault set). Consistently-polarised disjunctions, all-fault or all-capability, are counted and never reported; a negated `&&` is outside the population entirely. No same-receiver gate: it was measured to cost a real defect and remove no false positive. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether Scala's null is held to the type system and not undermined by assertions — a file compiled with `-Yexplicit-nulls` is one where `String` excludes null and `String | Null` admits it, a file under WartRemover's `Null` wart or Scalafix's `DisableSyntax.noNulls` is one whose code cannot write `null` and must say `Option`, and each `.nn`, `import scala.language.unsafeNulls` or null-lint suppression is the author overruling that.
Method: Roslyn compiler-options scan: NullableContextOptions per project; null-forgiving (!) suppression density per 1k syntax nodes. Deterministic, adoption plus suppression penalty.
No build over this repository's 71 Scala product file(s) passes `-Yexplicit-nulls`, enables WartRemover's `Null` wart or runs Scalafix's `DisableSyntax.noNulls`, so every reference type admits null and nothing reports a `null` written into the code or returned from a Java API — the first one to reach a method call is a `NullPointerException`. `Option` by convention is a habit no tool here holds the code to.
What to do
On Scala 3, add `-Yexplicit-nulls` to `scalacOptions` so `String` and `String | Null` mean different things, and type each Java API's result as nullable where it can return null; on Scala 2 (or as a first step), enable WartRemover's `Null` wart (`wartremoverErrors += Wart.Null`) or Scalafix's `DisableSyntax.noNulls = true` so the code holds absence in `Option`. Then pay the assertions down rather than adding to them: each `.nn` is a null the compiler could not rule out — wrap the Java value in `Option(…)` at the boundary, pattern-match on `null` once there, or change the API so the null cannot arrive; an `unsafeNulls` import switches the checking off for everything after it.
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Reference — by lens
The score is the rank-weighted fold of these lenses (worst-heaviest), each including its meta-dimensions; a lens with a Critical contributor is capped at Fair (its band reads "gated by …") and is never the strongest area however high its average.
Unscored — 1 check(s) recorded observations but carry no score
These checks ran and found something, but they do not carry a score — either by design (an advisory check reports evidence rather than grading it) or because they could not be scored here. They are excluded from the score for that reason, not because there was nothing to see.
X10 Duplicated predicate — 23 observation(s) recorded · Advisory — this card reports evidence and never carries a score.
Not evidenced — 2 control(s) we could not find positive evidence for
These checks grade a working control, and the repository shows no evidence of one. That is deliberately not scored as a zero: a repository cannot show an ops runbook, a database TTL or an infrastructure-side audit log, so absence of evidence here is not evidence the control is missing. It is also not a statement that the check is irrelevant to this codebase — the thing it grades applies; we just could not see it. Excluded from the score either way.
P4 Deployment & Rollback — not evidenced — no deploy/rollback/approval signal in the repo; absence of evidence is not evidence of a manual release
P5 DR & Backup — not evidenced — repo shows no backup/RTO/RPO controls; absence of evidence is not evidence of a working control
Not included — 51 check(s) not relevant to this codebase
These checks had nothing to measure here (no tests, no git history, the codebase is small, or the architecture style doesn't apply), so they're omitted above rather than scored low.
AC1 Text alternatives — No web markup found — accessibility is not applicable to this repository.
AC2 Forms & labels — No web markup found — accessibility is not applicable to this repository.
AC3 Page structure — No web markup found — accessibility is not applicable to this repository.
AC4 Keyboard semantics — No web markup found — accessibility is not applicable to this repository.
AC5 ARIA correctness — No web markup found — accessibility is not applicable to this repository.
AC6 Visual & motion safety — No web markup found — accessibility is not applicable to this repository.
AC7 A11y enforcement — No web markup found — accessibility is not applicable to this repository.
AX1 Captive dependencies — Not applicable: this repository's Scala imports no dependency-injection container and defines no container of its own — nothing that both registers and resolves bindings, and nothing that names two lifetimes — so nothing holds one lifetime's instance while handing out another's.
AX2 Stateful singletons — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX5 Architecture & structure — not assessed — architecture style/structure is computed from a project graph (projects, types, module namespaces) that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX7 Slice cohesion — not applicable — not a vertical-slice architecture
AX9 CQS / query purity — no CQRS query handlers detected — query purity is not applicable to this codebase
AXB1 Runtime evidence locked — no reproducible boot — This repository has nothing the runtime tiers could boot or serve — no markup, no UI framework or web-server dependency, no UI component source, no native UI project and no API definition — nothing here is a surface to boot — so runtime a11y/egress/header evidence has no subject here. Not applicable: this is neither a gap in the scan nor a finding about your code.
C1 Data Protection — Not assessed: these personal data controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks personal data controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C2 Access Controls — Not assessed: these authorization controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks authorization controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C3 Audit Trail — No personal data detected in a persisted data model — no PII-named column (email, first_name, date_of_birth, phone_number, …) or stored credential on a Slick table or in a SQL migration's CREATE TABLE or ALTER TABLE — and no database client (Slick, Doobie, Quill, ScalikeJDBC, Anorm, Skunk, a MongoDB or Cassandra driver, JDBC) imported either, so this repository keeps no sensitive data whose changes an audit trail would record. If it does (through a store configured outside this repository, for instance), the trail belongs to wherever that data is stored.
C4 Data Retention — No personal data detected in a persisted data model — no PII-named field (email, firstName, dateOfBirth, phoneNumber, …) or stored credential on a Slick table or in a SQL migration's CREATE TABLE or ALTER TABLE — and no database or data-store client (Slick, Doobie, Quill, ScalikeJDBC, Anorm, Skunk, JDBC, MongoDB, Cassandra, …) imported either, so this repository keeps no personal data whose lifetime a retention limit would bound.
C5 Data-Subject Rights — No personal data detected in a persisted data model — no PII-named field (email, firstName, dateOfBirth, phoneNumber, …) or stored credential on a Slick table or in a SQL migration's CREATE TABLE or ALTER TABLE — and no database or data-store client (Slick, Doobie, Quill, ScalikeJDBC, Anorm, Skunk, JDBC, MongoDB, Cassandra, …) imported either, so this repository keeps no personal data for a data subject to erase, export or consent over.
D10 Test Quality — ~9817 lines of test source are present (.scala) but no test cases reached the test census for this repository — no test root we could resolve declared them, or the files we read declare no cases in a test framework we recognise — so skipped/assertion-free tests couldn't be counted. Not scored — this is a gap in the analyzer, not a finding about this repository.
D11 Test Reliability — Test reliability not included — the .scala suite was found but not re-run
D18 Solution Shape — D18 scores the shape of a .NET solution; this repository has no .NET solution or project files, so the dimension does not apply.
D22 Internal API Consistency — The exposed public-API surface could not be collected — no C#/VB projects loaded.
D23 Boundary Type-Coupling — No bounded-context organisation was detected either — neither a context-shaped layout nor 2+ sibling source directories each declaring an aggregate root. Declaring this codebase's bounded contexts (≥2) would let cross-boundary type coupling be assessed. Declare them in `.codehealth/config.yaml` at the repository root (create it if absent), mapping each context name to the module-path or namespace prefixes that belong to it — e.g. `architecture:` → `contexts:` → `Billing: ["src/billing", "Acme.Billing"]`, `Catalog: ["src/catalog", "Acme.Catalog"]`.
D24 Comment Value — No inline comments to assess — comment value is not applicable here.
D25 ADR Conformance — no ADRs to check
D27 Navigability — D27 counts a call into the standard library or a dependency as unresolved for this repository's language (.scala), so too few call sites counted as resolved to assess navigability. Not scored: this is a gap in the analyzer, not a verdict about this repository.
D31 IaC & Container Security — No Infrastructure-as-Code or container manifests found (Dockerfile, Docker Compose, Terraform, Kubernetes/Helm, CloudFormation, ARM, Bicep, Ansible); nothing to scan.
D32 Data Compliance (PII/GDPR) — 2 file(s) were not parsed by semgrep — the PII/GDPR ruleset never ran over them
D37 Vulnerability-disclosure Policy — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
D39 IL Efficiency — D39 measures the IL emitted by a .NET build; this repository has no .NET solution or project files, so the dimension does not apply.
D40 Network Egress Confinement — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
D41 Kernel & Syscall Confinement — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
D42 Runtime Threat Enforcement — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
D7 Architectural Integrity — no checkable ADRs, and no project-reference graph for the cycle pass to read — so this dimension makes no claim about dependency cycles in either direction (where this repository's language has an import-cycle lens, cycles are reported there). Architectural integrity not assessed
D8 Code Coverage — Coverage not included — suite not readable by the collector
DM1 Domain Modelling — applicable but not scored (1 of 2 signals for this style — below the bar we score at): 95 value object(s)
ED1 Event-Driven — not scored — this repository shows none of the 3 signals this lens looks for
ED5 Idempotency — no mutating command handlers or message consumers detected — idempotency check not applicable
ES1 Event Sourcing — not scored — this repository shows none of the 3 signals this lens looks for
P12 CI test-gate honesty — Reported, not scored — and nothing was matched here. The coverage check applies to any stack, and the automatic-re-run check to any GitHub-Actions workflow, but the checks for excluded tests, skipped tests and sleep-based synchronisation currently recognise only some ecosystems' test-runner idioms, so on a repository built with another stack the zeros below mean 'not checked', not 'clean'.
P2 Observability — This repository's JVM source (1 module(s), 85 file(s) read) declares no entry point and bootstraps no server, and nothing here deploys a service — it is a library, run inside whatever hosts it, so production observability (structured logging, tracing/metrics, health checks) is N/A. If it grows a binary or a service, the dimension reactivates.
P7 Outbound HTTP resilience — not applicable — no HTTP server, API framework or worker entry point was found in the JVM source, so there is no service whose uptime a failing dependency could take down
P8 Schema migrations — no ORM, schema-migration tool or schema auto-create was found in this repository's dependency manifests or source, so there is no database schema for this check to judge
P9 Domain vs controller coverage — no coverage report found on disk — produce a coverage report in a standard format (`addSbtPlugin("org.scoverage" % "sbt-scoverage" % "<version>")` in `project/plugins.sbt`, then `sbt clean coverage test coverageReport`) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures, or wire coverage collection into CI, to enable this cross-layer check
S1 Web-Security Posture — No web surface: 71 Scala file(s) were read for weak hashes and ciphers, key material fixed in the source, disabled TLS certificate validation and obsolete TLS versions, and none was found. This repository builds on an HTTP-server library (build.sbt:391 — depends on `http4s-dsl`) but serves no HTTP of its own: its production source starts no server (no `newServerAt`/`bindAndHandle`, server builder, `Server.serve`, `Http.serve`, tapir server interpreter or Netty HTTP pipeline), declares no application one runs (no Play application, servlet, cask `MainRoutes`, `HttpApp` or twitter-server), so it is a library whose server controls belong to the application that serves it — HTTPS enforcement, HSTS, cookie flags and input validation are N/A here, as they are for a C# library. If this codebase starts serving HTTP, the dimension reactivates automatically.
X2 Cancellation propagation — no C# was loaded; this repository's Scala was read, and no request in it can be cancelled by a caller — a Scala request takes no token: a Future cannot be cancelled, and cats-effect, ZIO and Monix interrupt the fiber that made the request from outside the call, not through a parameter
X32 Type resolved by simple name across every loaded assembly — This check is about how a .NET program searches the assemblies loaded into its process for a type, and this repository contains no .NET source, so there is nothing here for it to assess. Not a gap in the analyzer and not a finding about your code.
X4 Structured logging — This check asks whether log calls keep a message's values apart from its text, which needs a logger that can carry them as fields. This repository's Scala was read, and it logs through none that an interpolated message defeats: scala-logging takes an `s"…"` message apart into SLF4J's pattern and arguments at compile time, and log4s, grizzled-slf4j, Play's Logger, Akka's LoggingAdapter, sbt's Logger and Spark's Logging take one finished message (as log4net does in C#). Calls made straight through SLF4J (`org.slf4j.Logger`) would be judged.
X6 Hand-rolled structured-format parsing — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
X7 Silent fallback defaults — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
X9 Subsumed condition operand — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
Appendix A — Findings (grouped)
The findings behind the scores, grouped by severity, then by dimension and kind. The high-severity issues are enumerated in full below; items per group are capped at 25 with any overflow stated explicitly per group, never silently truncated. The complete machine-readable list of every finding (all severities) is the companion findings.md in this report's bundle.
Duplicated block (5 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:246— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:246-250 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:250-254 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:246` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:624— zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:624-628 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:668-672 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:624` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:632— zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:632-636 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:679-683 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:632` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-2.13/zio/json/JsonDecoderVersionSpecific.scala:11— zio-json/shared/src/main/scala-2.13/zio/json/JsonDecoderVersionSpecific.scala:11-15 | zio-json/shared/src/main/scala-3/zio/json/JsonDecoderVersionSpecific.scala:13-17 — before extracting anything, compare `zio-json/shared/src/main/scala-2.13/zio/json/JsonDecoderVersionSpecific.scala` and `zio-json/shared/src/main/scala-3/zio/json/JsonDecoderVersionSpecific.scala` as WHOLE FILES: 91% of the shorter file's lines also appear in the other, so this reads as one file having been copied from the other rather than as a helper waiting to be extracted. The 1 duplicated block(s) this scan matched between them are fragments of that copy, not the extent of it — treat the file pair as the unit. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala:11— zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala:11-15 | zio-json/shared/src/main/scala-3/zio/json/JsonEncoderVersionSpecific.scala:12-16 — before extracting anything, compare `zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala` and `zio-json/shared/src/main/scala-3/zio/json/JsonEncoderVersionSpecific.scala` as WHOLE FILES: 92% of the shorter file's lines also appear in the other, so this reads as one file having been copied from the other rather than as a helper waiting to be extracted. The 2 duplicated block(s) this scan matched between them are fragments of that copy, not the extent of it — treat the file pair as the unit. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala:16— zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala:16-20 | zio-json/shared/src/main/scala-3/zio/json/JsonEncoderVersionSpecific.scala:17-21 — before extracting anything, compare `zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala` and `zio-json/shared/src/main/scala-3/zio/json/JsonEncoderVersionSpecific.scala` as WHOLE FILES: 92% of the shorter file's lines also appear in the other, so this reads as one file having been copied from the other rather than as a helper waiting to be extracted. The 2 duplicated block(s) this scan matched between them are fragments of that copy, not the extent of it — treat the file pair as the unit. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.13/zio/json/JsonEncoderVersionSpecific.scala:16` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:819— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:819-823 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:835-839 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:819` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:370— zio-json/shared/src/main/scala-3/zio/json/macros.scala:370-374 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:523-527 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:370` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:771— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:771-775 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:725-729 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:777— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:777-781 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:731-735 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala:26— zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala:26-30 | zio-json/shared/src/main/scala-3/zio/json/JsonFieldDecoder.scala:26-30 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala` and `zio-json/shared/src/main/scala-3/zio/json/JsonFieldDecoder.scala` as WHOLE FILES: 96% of the shorter file's lines also appear in the other, so this reads as one file having been copied from the other rather than as a helper waiting to be extracted. The 2 duplicated block(s) this scan matched between them are fragments of that copy, not the extent of it — treat the file pair as the unit. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1013— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1013-1017 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1672-1676 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1634— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1634-1638 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1209-1213 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (5 lines × 2) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:673— zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:673-677 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:684-688 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (5 lines × 2) zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:153— zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:153-157 | zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:162-166 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:153` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1613— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1613-1617 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1188-1192 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (13 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:122— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:122-134 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:122-134 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:122` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:236— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:236-248 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:236-248 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:236` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:522— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:522-534 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:522-534 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:522` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:590— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:590-602 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:617-629 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:590` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:627— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:627-639 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:643-655 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:627` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:799— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:799-811 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:858-870 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:799` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1450— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1450-1462 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1466-1478 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1450` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1592— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1592-1604 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1167-1179 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:242— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:242-254 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:258-270 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:242` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:407— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:407-419 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:462-474 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:407` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 2) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1028— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1028-1040 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1044-1056 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1028` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
TodoComment project/BuildHelper.scala:234— // TODO: find how we can use "both" for patch versions of 1.x releases — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json-golden/src/main/scala/zio/json/golden/package.scala:37— // TODO: Find a way to suppress the unused import warning — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json-macros/shared/src/main/scala/zio/json/jsonDerive.scala:28— // TODO aparo: Restore when it will be possible to define functions to transform object keys — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:43— // TODO a strategy where the constructor is inferred from the field names, only — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json/shared/src/main/scala-3/zio/json/macros.scala:39— // TODO a strategy where the constructor is inferred from the field names, only — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:313— // TODO it would be more efficient to have a solution that didn't box — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:445— // TODO it would be more efficient to have a solution that didn't box — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:28— // TODO need a variant that doesn't skip whitespace, so that attack vectors — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment zio-json/shared/src/test/scala/zio/json/internal/SafeNumbersSpec.scala:296— // TODO: uncomment after release of Scala Native 0.5.7 — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
Duplicated block (7 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:494— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:494-500 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:489-495 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1020— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1020-1026 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1679-1685 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala/zio/json/JsonEncoder.scala:391— zio-json/shared/src/main/scala/zio/json/JsonEncoder.scala:391-397 | zio-json/shared/src/main/scala/zio/json/JsonEncoder.scala:537-543 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:634— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:634-640 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1457-1463 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:634` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:249— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:249-255 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1035-1041 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:249` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:265— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:265-271 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1051-1057 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:265` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:994— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:994-1000 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1653-1659 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:263— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:263-269 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:395-401 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:263` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just before the matched lines, `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:393` calls `StringMatrix` and `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:261` does not — after which the two agree again for 2 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (7 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:314— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:314-320 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:342-348 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (6 lines × 2) zio-json/js/src/main/scala/zio/json/internal/FastStringWrite.scala:60— zio-json/js/src/main/scala/zio/json/internal/FastStringWrite.scala:60-65 | zio-json/js/src/main/scala/zio/json/internal/FastStringWrite.scala:69-74 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just after the matched lines, `zio-json/js/src/main/scala/zio/json/internal/FastStringWrite.scala:68` calls `write` and `zio-json/js/src/main/scala/zio/json/internal/FastStringWrite.scala:75` does not — after which the two agree again for 2 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (6 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:671— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:671-676 | zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:716-721 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:671` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (6 lines × 2) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:640— zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:640-645 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:690-695 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:640` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (6 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:583— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:583-588 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:610-615 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:583` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (6 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:838— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:838-843 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:864-869 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:838` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just before the matched lines, `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:862` calls `encodeJson` and `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:836` does not — after which the two agree again for 2 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (6 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:661— zio-json/shared/src/main/scala-3/zio/json/macros.scala:661-666 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:697-702 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:661` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (6 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:737— zio-json/shared/src/main/scala-3/zio/json/macros.scala:737-742 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:766-771 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (6 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/writers.scala:79— zio-json/shared/src/main/scala/zio/json/internal/writers.scala:79-84 | zio-json/shared/src/main/scala/zio/json/internal/writers.scala:87-92 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just after the matched lines, `zio-json/shared/src/main/scala/zio/json/internal/writers.scala:86` calls `write` and `zio-json/shared/src/main/scala/zio/json/internal/writers.scala:93` does not — after which the two agree again for 2 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (6 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:986— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:986-991 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1645-1650 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
FileTooLong: internal/lexer.scala zio-json/shared/src/main/scala/zio/json/internal/lexer.scala— FileTooLong — 1535 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 1035 over it, 3.07× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: json/macros.scala zio-json/shared/src/main/scala-3/zio/json/macros.scala— FileTooLong — 1257 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 757 over it, 2.51× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: javatime/parsers.scala zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala— FileTooLong — 1021 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 521 over it, 2.04× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: json/JsonDecoder.scala zio-json/shared/src/main/scala/zio/json/JsonDecoder.scala— FileTooLong — 764 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 264 over it, 1.53× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: json/macros.scala zio-json/shared/src/main/scala-2.x/zio/json/macros.scala— FileTooLong — 756 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 256 over it, 1.51× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: internal/SafeNumbers.scala zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala— FileTooLong — 688 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 188 over it, 1.38× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: internal/SafeNumbers.scala zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala— FileTooLong — 629 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 129 over it, 1.26× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: json/JsonEncoder.scala zio-json/shared/src/main/scala/zio/json/JsonEncoder.scala— FileTooLong — 546 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 46 over it, 1.09× the bar. To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
TooManyMethods: Lexer zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:27— TooManyMethods — 76 methods. The bar is 30 methods; this is 46 over it, 2.53× the bar. This type is on a published API surface — a MiMa binary-compatibility gate (build.sbt) declares its compatibility contractual — so moving members onto a smaller type is a breaking change for every consumer, not a local refactor. To reduce it, treat the split as an API migration: move each cohesive group onto its own published type and keep the old members as deprecated forwards for a deprecation period, removing them at the next compatibility break. Where the surface has to stay as it is, that is a decision to record rather than a change to make.
TooManyMethods: SafeNumbers zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:42— TooManyMethods — 46 methods. The bar is 30 methods; this is 16 over it, 1.53× the bar. This type is on a published API surface — a MiMa binary-compatibility gate (build.sbt) declares its compatibility contractual — so moving members onto a smaller type is a breaking change for every consumer, not a local refactor. To reduce it, treat the split as an API migration: move each cohesive group onto its own published type and keep the old members as deprecated forwards for a deprecation period, removing them at the next compatibility break. Where the surface has to stay as it is, that is a decision to record rather than a change to make.
TooManyMethods: SafeNumbers zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:42— TooManyMethods — 44 methods. The bar is 30 methods; this is 14 over it, 1.47× the bar. This type is on a published API surface — a MiMa binary-compatibility gate (build.sbt) declares its compatibility contractual — so moving members onto a smaller type is a breaking change for every consumer, not a local refactor. To reduce it, treat the split as an API migration: move each cohesive group onto its own published type and keep the old members as deprecated forwards for a deprecation period, removing them at the next compatibility break. Where the surface has to stay as it is, that is a decision to record rather than a change to make.
TooManyMethods: MacroHelpers zio-json/shared/src/main/scala-3/zio/json/macros.scala:232— TooManyMethods — 39 methods. The bar is 30 methods; this is 9 over it, 1.30× the bar. To reduce it, group the members that share the same data into a smaller type of their own and delegate to it, so no single type carries every responsibility.
TooManyMethods: parsers zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:22— TooManyMethods — 36 methods. The bar is 30 methods; this is 6 over it, 1.20× the bar. To reduce it, group the members that share the same data into a smaller type of their own and delegate to it, so no single type carries every responsibility.
TooManyMethods: Json zio-json/shared/src/main/scala/zio/json/ast/ast.scala:38— TooManyMethods — 33 methods. The bar is 30 methods; this is 3 over it, 1.10× the bar. This type is on a published API surface — a MiMa binary-compatibility gate (build.sbt) declares its compatibility contractual — so moving members onto a smaller type is a breaking change for every consumer, not a local refactor. To reduce it, treat the split as an API migration: move each cohesive group onto its own published type and keep the old members as deprecated forwards for a deprecation period, removing them at the next compatibility break. Where the surface has to stay as it is, that is a decision to record rather than a change to make.
TooManyMethods: serializers zio-json/shared/src/main/scala/zio/json/javatime/serializers.scala:22— TooManyMethods — 31 methods. The bar is 30 methods; this is 1 over it, 1.03× the bar. To reduce it, group the members that share the same data into a smaller type of their own and delegate to it, so no single type carries every responsibility.
Duplicated block (11 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:112— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:112-122 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:112-122 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (11 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:662— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:662-672 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:615-625 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:662` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (11 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:324— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:324-334 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:456-466 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:324` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (11 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:913— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:913-923 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1572-1582 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:913` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (11 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1040— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1040-1050 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1699-1709 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (11 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:248— zio-json/shared/src/main/scala-3/zio/json/macros.scala:248-258 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:338-348 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (11 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:606— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:606-616 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:221-231 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:606` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (21 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:393— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:393-413 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:388-408 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:393` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (21 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:415— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:415-435 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:410-430 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:415` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (21 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:362— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:362-382 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:362-382 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:362` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (21 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:497— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:497-517 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:497-517 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:497` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (21 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:123— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:123-143 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:121-141 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (21 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:146— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:146-166 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:144-164 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (16 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:158— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:158-173 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:200-215 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:158` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (16 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:340— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:340-355 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:340-355 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (16 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:614— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:614-629 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:614-629 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:614` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (16 lines × 2) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:158— zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:158-173 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:200-215 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:158` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (16 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:534— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:534-549 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:149-164 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:534` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (12 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:172— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:172-183 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:176-187 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (12 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:226— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:226-237 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:230-241 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (12 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:768— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:768-779 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1205-1216 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:768` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (12 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1405— zio-json/shared/src/main/scala-3/zio/json/macros.scala:1405-1416 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1736-1747 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (12 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:648— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:648-659 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:601-612 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (9 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:632— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:632-640 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:632-640 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (9 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1029— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1029-1037 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1688-1696 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (9 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:650— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:650-658 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1473-1481 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:650` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1211— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1211-1219 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:801-809 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1211` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1424— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1424-1432 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1002-1010 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1424` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (16 lines × 3) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:256— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:256-271 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:390-405 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:525-540 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:256` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (16 lines × 3) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:256— zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:256-271 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:390-405 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:525-540 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:256` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (16 lines × 3) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:691— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:691-706 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:749-764 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:943-958 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:691` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (16 lines × 3) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:302— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:302-317 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:357-372 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:539-554 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:302` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:640— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:640-649 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:680-689 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:640` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1034— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1034-1043 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1047-1056 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1034` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1131— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1131-1140 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1144-1153 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1131` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1541— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1541-1550 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1554-1563 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1541` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
SafeNumbers.write (cyclomatic 24) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:392— SafeNumbers.write has cyclomatic complexity 24 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
SafeNumbers.write (cyclomatic 24) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:283— SafeNumbers.write has cyclomatic complexity 24 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top. This shape REPEATS in the file: one other method here (SafeNumbers.write) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
SafeNumbers.write (cyclomatic 24) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:387— SafeNumbers.write has cyclomatic complexity 24 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top. This shape REPEATS in the file: one other method here (SafeNumbers.write) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
FixmeComment project/BuildHelper.scala:238— // FIXME: Remove before next release — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
FixmeComment zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:643— // FIXME: Use Math.unsignedMultiplyHigh after dropping of JDK 17 support — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
FixmeComment zio-json/shared/src/main/scala/zio/json/JsonEncoder.scala:218— // FIXME: add tests — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
SafeNumbers.write (cognitive 65) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:392— SafeNumbers.write has cognitive complexity 65 (threshold 15). Drivers by points: if/else 24 (51 pts), loops 2 (9 pts), boolean chains 5 (nesting depth added 34). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
SafeNumbers.write (cognitive 65) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:283— SafeNumbers.write has cognitive complexity 65 (threshold 15). Drivers by points: if/else 24 (51 pts), loops 2 (9 pts), boolean chains 5 (nesting depth added 34). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function. This shape REPEATS in the file: one other method here (SafeNumbers.write) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
SafeNumbers.write (cognitive 65) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:387— SafeNumbers.write has cognitive complexity 65 (threshold 15). Drivers by points: if/else 24 (51 pts), loops 2 (9 pts), boolean chains 5 (nesting depth added 34). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function. This shape REPEATS in the file: one other method here (SafeNumbers.write) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
D4 · Code Duplication· Members sharing a duplicated core (8 members, 50+ identical tokens) · ×3
Members sharing a duplicated core (8 members, 50+ identical tokens) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:39— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:39-60 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:65-86 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:91-116 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:121-146 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:39-60 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:65-86 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:91-116 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:121-146 — These 8 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 8 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 8 times.
Members sharing a duplicated core (8 members, 50+ identical tokens) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508-668 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:670-727 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:729-837 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:839-896 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:923-1069 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1071-1166 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1285-1335 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1337-1518 — These 8 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 8 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 8 times.
Members sharing a duplicated core (8 members, 50+ identical tokens) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125-282 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:284-337 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:339-443 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:445-498 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:521-664 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:666-758 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:869-915 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:917-1096 — These 8 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 8 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 8 times.
D4 · Code Duplication· Members sharing a duplicated core (5 members, 50+ identical tokens) · ×3
Members sharing a duplicated core (5 members, 50+ identical tokens) zio-json/shared/src/main/scala-3/zio/json/macros.scala:337— zio-json/shared/src/main/scala-3/zio/json/macros.scala:337-391 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:500-533 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:595-627 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:648-678 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:684-714 — These 5 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 5 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 5 times.
Members sharing a duplicated core (5 members, 50+ identical tokens) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508-668 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:923-1069 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1071-1166 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1337-1518 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1520-1574 — These 5 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 5 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 5 times.
Members sharing a duplicated core (5 members, 50+ identical tokens) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125-282 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:521-664 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:666-758 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:917-1096 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1112-1164 — These 5 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 5 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 5 times.
Duplicated block (19 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:307— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:307-325 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:311-329 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:307` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (19 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:337— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:337-355 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:332-350 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:337` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (19 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:958— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:958-976 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1617-1635 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (18 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:437— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:437-454 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:432-449 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:437` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (18 lines × 2) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:813— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:813-830 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:872-889 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:813` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (18 lines × 2) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:421— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:421-438 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:476-493 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:421` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (17 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:701— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:701-717 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:653-669 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:701` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (17 lines × 2) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:247— zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:247-263 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:381-397 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:247` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (17 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:352— zio-json/shared/src/main/scala-3/zio/json/macros.scala:352-368 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:505-521 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:352` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (15 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:476— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:476-490 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:476-490 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:476` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (15 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:789— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:789-803 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1226-1240 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:789` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (15 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1419— zio-json/shared/src/main/scala-3/zio/json/macros.scala:1419-1433 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1752-1766 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:1419` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (12 lines × 3) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:993— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:993-1004 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1090-1101 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1402-1413 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:993` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (12 lines × 3) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1048— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1048-1059 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1145-1156 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1555-1566 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1048` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (12 lines × 3) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:589— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:589-600 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:683-694 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:980-991 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:589` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (8 lines × 4) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:619— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:619-626 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1026-1033 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1123-1130 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1442-1449 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:619` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (8 lines × 4) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:126— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:126-133 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:285-292 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:340-347 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:522-529 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:126` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (8 lines × 4) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:234— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:234-241 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:622-629 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:716-723 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1020-1027 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:234` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (8 lines × 2) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:323— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:323-330 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:323-330 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (8 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala:33— zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala:33-40 | zio-json/shared/src/main/scala-3/zio/json/JsonFieldDecoder.scala:33-40 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala` and `zio-json/shared/src/main/scala-3/zio/json/JsonFieldDecoder.scala` as WHOLE FILES: 96% of the shorter file's lines also appear in the other, so this reads as one file having been copied from the other rather than as a helper waiting to be extracted. The 2 duplicated block(s) this scan matched between them are fragments of that copy, not the extent of it — treat the file pair as the unit. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (8 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1003— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1003-1010 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1662-1669 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
UnsafeNumbers.double_ (cyclomatic 39) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:495— UnsafeNumbers.double_ has cyclomatic complexity 39 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UnsafeNumbers.double_ (cyclomatic 39) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:495— UnsafeNumbers.double_ has cyclomatic complexity 39 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UnsafeNumbers.float_ (cyclomatic 38) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:360— UnsafeNumbers.float_ has cyclomatic complexity 38 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UnsafeNumbers.float_ (cyclomatic 38) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:360— UnsafeNumbers.float_ has cyclomatic complexity 38 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UnsafeNumbers.bigDecimal_ (cyclomatic 28) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235— UnsafeNumbers.bigDecimal_ has cyclomatic complexity 28 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UnsafeNumbers.bigDecimal_ (cyclomatic 28) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235— UnsafeNumbers.bigDecimal_ has cyclomatic complexity 28 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UnsafeNumbers.bigInteger_ (cyclomatic 16) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151— UnsafeNumbers.bigInteger_ has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInt_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.bigInteger_ (cyclomatic 16) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151— UnsafeNumbers.bigInteger_ has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInt_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.bigInt_ (cyclomatic 16) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:193— UnsafeNumbers.bigInt_ has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInteger_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.bigInt_ (cyclomatic 16) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:193— UnsafeNumbers.bigInt_ has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInteger_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.double_ (cognitive 66) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:495— UnsafeNumbers.double_ has cognitive complexity 66 (threshold 15). Drivers by points: if/else 26 (45 pts), boolean chains 16, loops 3 (5 pts) (nesting depth added 21). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.double_ (cognitive 66) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:495— UnsafeNumbers.double_ has cognitive complexity 66 (threshold 15). Drivers by points: if/else 26 (45 pts), boolean chains 16, loops 3 (5 pts) (nesting depth added 21). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.float_ (cognitive 65) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:360— UnsafeNumbers.float_ has cognitive complexity 65 (threshold 15). Drivers by points: if/else 25 (44 pts), boolean chains 16, loops 3 (5 pts) (nesting depth added 21). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.float_ (cognitive 65) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:360— UnsafeNumbers.float_ has cognitive complexity 65 (threshold 15). Drivers by points: if/else 25 (44 pts), boolean chains 16, loops 3 (5 pts) (nesting depth added 21). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.bigDecimal_ (cognitive 40) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235— UnsafeNumbers.bigDecimal_ has cognitive complexity 40 (threshold 15). Drivers by points: if/else 14 (22 pts), boolean chains 13, loops 3 (5 pts) (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.bigDecimal_ (cognitive 40) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235— UnsafeNumbers.bigDecimal_ has cognitive complexity 40 (threshold 15). Drivers by points: if/else 14 (22 pts), boolean chains 13, loops 3 (5 pts) (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.bigInteger_ (cognitive 38) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151— UnsafeNumbers.bigInteger_ has cognitive complexity 38 (threshold 15). Drivers by points: if/else 14 (33 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 20). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInt_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.bigInteger_ (cognitive 38) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151— UnsafeNumbers.bigInteger_ has cognitive complexity 38 (threshold 15). Drivers by points: if/else 14 (33 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 20). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInt_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.bigInt_ (cognitive 38) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:193— UnsafeNumbers.bigInt_ has cognitive complexity 38 (threshold 15). Drivers by points: if/else 14 (33 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 20). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInteger_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.bigInt_ (cognitive 38) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:193— UnsafeNumbers.bigInt_ has cognitive complexity 38 (threshold 15). Drivers by points: if/else 14 (33 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 20). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function. This shape REPEATS in the file: one other method here (UnsafeNumbers.bigInteger_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.toFloat (cognitive 25) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:461— UnsafeNumbers.toFloat has cognitive complexity 25 (threshold 15). Drivers by points: if/else 12 (22 pts), boolean chains 3 (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.toDouble) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.toFloat (cognitive 25) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:461— UnsafeNumbers.toFloat has cognitive complexity 25 (threshold 15). Drivers by points: if/else 12 (22 pts), boolean chains 3 (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.toDouble) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.toDouble (cognitive 25) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:600— UnsafeNumbers.toDouble has cognitive complexity 25 (threshold 15). Drivers by points: if/else 12 (22 pts), boolean chains 3 (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.toFloat) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.toDouble (cognitive 25) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:600— UnsafeNumbers.toDouble has cognitive complexity 25 (threshold 15). Drivers by points: if/else 12 (22 pts), boolean chains 3 (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.toFloat) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
SafeNumbers.writeMantissa (cognitive 20) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:661— SafeNumbers.writeMantissa has cognitive complexity 20 (threshold 15). Drivers by points: if/else 15 (20 pts) (nesting depth added 5). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: 2 other methods here (SafeNumbers.writeMantissaWithDot, SafeNumbers.digitCount) have the same decision points, in the same order, at the same nesting depths — so this is one pattern written 3 times rather than 3 independent problems. Splitting this body alone leaves the other 2 exactly as they are. Where these are variations on one operation, the change that clears all 3 is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
SafeNumbers.writeMantissa (cognitive 20) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:614— SafeNumbers.writeMantissa has cognitive complexity 20 (threshold 15). Drivers by points: if/else 15 (20 pts) (nesting depth added 5). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (SafeNumbers.writeMantissaWithDot) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
SafeNumbers.writeMantissaWithDot (cognitive 20) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:700— SafeNumbers.writeMantissaWithDot has cognitive complexity 20 (threshold 15). Drivers by points: if/else 15 (20 pts) (nesting depth added 5). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: 2 other methods here (SafeNumbers.writeMantissa, SafeNumbers.digitCount) have the same decision points, in the same order, at the same nesting depths — so this is one pattern written 3 times rather than 3 independent problems. Splitting this body alone leaves the other 2 exactly as they are. Where these are variations on one operation, the change that clears all 3 is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
SafeNumbers.writeMantissaWithDot (cognitive 20) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:652— SafeNumbers.writeMantissaWithDot has cognitive complexity 20 (threshold 15). Drivers by points: if/else 15 (20 pts) (nesting depth added 5). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (SafeNumbers.writeMantissa) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
NestedWriter.nonZeroStateWrite (cognitive 20) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:929— NestedWriter.nonZeroStateWrite has cognitive complexity 20 (threshold 15). Drivers by points: if/else 5 (14 pts), loops 2 (5 pts), boolean chains 1 (nesting depth added 12). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
NestedWriter.nonZeroStateWrite (cognitive 20) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1588— NestedWriter.nonZeroStateWrite has cognitive complexity 20 (threshold 15). Drivers by points: if/else 5 (14 pts), loops 2 (5 pts), boolean chains 1 (nesting depth added 12). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
UnsafeNumbers.int_ (cognitive 19) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:91— UnsafeNumbers.int_ has cognitive complexity 19 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 4, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.long_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.int_ (cognitive 19) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:91— UnsafeNumbers.int_ has cognitive complexity 19 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 4, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.long_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.long_ (cognitive 19) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:121— UnsafeNumbers.long_ has cognitive complexity 19 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 4, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.int_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.long_ (cognitive 19) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:121— UnsafeNumbers.long_ has cognitive complexity 19 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 4, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.int_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.byte_ (cognitive 18) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:39— UnsafeNumbers.byte_ has cognitive complexity 18 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.short_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.byte_ (cognitive 18) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:39— UnsafeNumbers.byte_ has cognitive complexity 18 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.short_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.short_ (cognitive 18) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:65— UnsafeNumbers.short_ has cognitive complexity 18 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.byte_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
UnsafeNumbers.short_ (cognitive 18) zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:65— UnsafeNumbers.short_ has cognitive complexity 18 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: one other method here (UnsafeNumbers.byte_) has the same decision points, in the same order, at the same nesting depths — so this is one pattern written twice rather than two separate problems. Splitting this body alone leaves the other exactly as it is. Where these are variations on one operation, the change that clears both is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
jsonMemberNames.enforceCamelOrPascalCase (cognitive 17) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:93— jsonMemberNames.enforceCamelOrPascalCase has cognitive complexity 17 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 2, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
jsonMemberNames.enforceCamelOrPascalCase (cognitive 17) zio-json/shared/src/main/scala-3/zio/json/macros.scala:91— jsonMemberNames.enforceCamelOrPascalCase has cognitive complexity 17 (threshold 15). Drivers by points: if/else 8 (13 pts), boolean chains 2, loops 1 (2 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
NestedWriter.nonZeroStateWrite (cognitive 16) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:957— NestedWriter.nonZeroStateWrite has cognitive complexity 16 (threshold 15). Drivers by points: if/else 5 (14 pts), boolean chains 1, loops 1 (nesting depth added 9). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
NestedWriter.nonZeroStateWrite (cognitive 16) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1616— NestedWriter.nonZeroStateWrite has cognitive complexity 16 (threshold 15). Drivers by points: if/else 5 (14 pts), boolean chains 1, loops 1 (nesting depth added 9). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
D4 · Code Duplication· Members sharing a duplicated core (4 members, 50+ identical tokens) · ×2
Members sharing a duplicated core (4 members, 50+ identical tokens) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:462— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:462-490 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:601-629 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:462-490 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:601-629 — These 4 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 4 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 4 times.
Members sharing a duplicated core (4 members, 50+ identical tokens) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1029— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1029-1037 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1040-1050 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1688-1696 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1699-1709 — These 4 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 4 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 4 times.
Duplicated block (27 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:193— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:193-219 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:197-223 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:193` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (27 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:94— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:94-120 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:92-118 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (22 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:280— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:280-301 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:284-305 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:280` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (22 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:930— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:930-951 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1589-1610 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (15 lines × 4) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40-54 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:66-80 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40-54 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:66-80 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (15 lines × 4) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:167— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:167-181 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:209-223 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:167-181 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:209-223 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:167` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (13 lines × 4) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:282— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:282-294 | zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:395-407 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:286-298 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:390-402 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:282` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 4) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:253— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:253-265 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:387-399 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:253-265 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:387-399 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:253` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (11 lines × 6) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:241— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:241-251 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:375-385 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:510-520 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:241-251 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:375-385 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:510-520 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:241` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (11 lines × 6) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:297— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:297-307 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:341-351 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:370-380 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:429-439 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:473-483 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:502-512 — all 6 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (10–11 lines × 4) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:528— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:528-538 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:691-700 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:749-758 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:943-952 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:528` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Duplicated block (10–11 lines × 4) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:143— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:143-153 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:302-311 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:357-366 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:539-548 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:143` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Duplicated block (11 lines × 3) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:373— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:373-383 | zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:474-484 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:368-378 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:373` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (11 lines × 3) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:509— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:509-519 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:730-740 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:924-934 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:509` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 4) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1013— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1013-1022 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1110-1119 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:609-618 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:703-712 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1013` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 4) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:165— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:165-174 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:377-386 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:559-568 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:954-963 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:165` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 3) zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:119— zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:119-128 | zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:133-142 | zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:149-158 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just after the matched lines, `zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:143` calls `cs` and `zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:129` does not — after which the two agree again for 2 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (10 lines × 3) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1035— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1035-1044 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1132-1141 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1542-1551 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1035` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 6) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:912— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:912-920 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:933-941 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:961-969 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1571-1579 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1592-1600 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1620-1628 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:912` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 6) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:631— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:631-639 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:644-652 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:725-733 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:738-746 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1133-1141 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1146-1154 — all 6 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:631` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 3) zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:65— zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:65-73 | zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:78-86 | zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:92-100 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just after the matched lines, `zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:87` calls `cs` and `zio-json/jvm-native/src/main/scala/zio/json/internal/FastStringWrite.scala:74` does not — after which the two agree again for 2 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (9 lines × 3) zio-json/shared/src/main/scala-3/zio/json/macros.scala:596— zio-json/shared/src/main/scala-3/zio/json/macros.scala:596-604 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:649-657 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:685-693 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (6–7 lines × 5) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:804— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:804-810 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:863-869 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:998-1003 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1095-1100 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1407-1412 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:998` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Duplicated block (6–7 lines × 5) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:412— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:412-418 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:467-473 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:594-599 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:688-693 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:985-990 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:594` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Duplicated block (7 lines × 4) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:361— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:361-367 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:496-502 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:361-367 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:496-502 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:361` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 4) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1030— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1030-1036 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1041-1047 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1689-1695 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1700-1706 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:1030` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (6 lines × 5) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:637— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:637-642 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1041-1046 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1138-1143 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1460-1465 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1548-1553 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (6 lines × 5) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:268— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:268-273 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:650-655 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:744-749 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1054-1059 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1152-1157 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
End-of-life runtime: Java 14 .java-version:1— .java-version declares Java 14 as this project's version file, and Java 14, a non-LTS release, superseded by Java 15 on 2020-09-15. An unsupported runtime receives no security patches, so every vulnerability disclosed in it since 2020-09-15 is present and unfixable without moving off it. This is a migration rather than an upgrade: there is no newer release of a runtime that has ended.
End-of-life runtime: Node.js 18 .nvmrc:1— .nvmrc declares Node.js 18 as this project's version file, and Node.js 18, support ended 2025-04-30. An unsupported runtime receives no security patches, so every vulnerability disclosed in it since 2025-04-30 is present and unfixable without moving off it. This is a migration rather than an upgrade: there is no newer release of a runtime that has ended.
DeriveJsonDecoder.join (cyclomatic 77) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:221— DeriveJsonDecoder.join has cyclomatic complexity 77 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.zonedDateTime (cyclomatic 60) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1337— Lexer.zonedDateTime has cyclomatic complexity 60 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseZonedDateTime (cyclomatic 59) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:917— parsers.unsafeParseZonedDateTime has cyclomatic complexity 59 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.instant (cyclomatic 51) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508— Lexer.instant has cyclomatic complexity 51 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseInstant (cyclomatic 50) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125— parsers.unsafeParseInstant has cyclomatic complexity 50 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.duration (cyclomatic 47) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:406— Lexer.duration has cyclomatic complexity 47 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
DeriveJsonDecoder.split (cyclomatic 46) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:520— DeriveJsonDecoder.split has cyclomatic complexity 46 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseDuration (cyclomatic 46) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:26— parsers.unsafeParseDuration has cyclomatic complexity 46 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
DeriveHelpers.buildProductDecoder (cyclomatic 44) zio-json/shared/src/main/scala-3/zio/json/macros.scala:797— DeriveHelpers.buildProductDecoder has cyclomatic complexity 44 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.offsetDateTime (cyclomatic 44) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:923— Lexer.offsetDateTime has cyclomatic complexity 44 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseOffsetDateTime (cyclomatic 43) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:521— parsers.unsafeParseOffsetDateTime has cyclomatic complexity 43 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.period (cyclomatic 32) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1168— Lexer.period has cyclomatic complexity 32 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.localDateTime (cyclomatic 31) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:729— Lexer.localDateTime has cyclomatic complexity 31 (threshold 15). To reduce it, separate the branches: extract each independent case into its own named function so the top-level body reads as a short sequence of named decisions.
parsers.unsafeParsePeriod (cyclomatic 31) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:760— parsers.unsafeParsePeriod has cyclomatic complexity 31 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseLocalDateTime (cyclomatic 30) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:339— parsers.unsafeParseLocalDateTime has cyclomatic complexity 30 (threshold 15). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
Lexer.offsetTime (cyclomatic 29) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1071— Lexer.offsetTime has cyclomatic complexity 29 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseOffsetTime (cyclomatic 28) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:666— parsers.unsafeParseOffsetTime has cyclomatic complexity 28 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
DeriveHelpers.buildSumDecoder (cyclomatic 27) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1007— DeriveHelpers.buildSumDecoder has cyclomatic complexity 27 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
SafeNumbers.write (cyclomatic 25) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:279— SafeNumbers.write has cyclomatic complexity 25 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
JsonDecoderPlatformSpecific.decodeJsonPipeline (cyclomatic 21) zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:56— JsonDecoderPlatformSpecific.decodeJsonPipeline has cyclomatic complexity 21 (threshold 15). To reduce it, separate the branches: extract each independent case into its own named function so the top-level body reads as a short sequence of named decisions.
Lexer.zoneOffset (cyclomatic 20) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1520— Lexer.zoneOffset has cyclomatic complexity 20 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
parsers.unsafeParseZoneOffset (cyclomatic 19) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1112— parsers.unsafeParseZoneOffset has cyclomatic complexity 19 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
DeriveJsonEncoder.join (cyclomatic 17) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:736— DeriveJsonEncoder.join has cyclomatic complexity 17 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
DeriveJsonEncoder.split (cyclomatic 17) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:806— DeriveJsonEncoder.split has cyclomatic complexity 17 (threshold 15). To reduce it, separate the branches: extract each independent case into its own named function so the top-level body reads as a short sequence of named decisions.
Lexer.localDate (cyclomatic 17) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:670— Lexer.localDate has cyclomatic complexity 17 (threshold 15). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
Lexer.localTime (cyclomatic 16) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:839— Lexer.localTime has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Lexer.yearMonth (cyclomatic 16) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1285— Lexer.yearMonth has cyclomatic complexity 16 (threshold 15). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
parsers.unsafeParseLocalDate (cyclomatic 16) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:284— parsers.unsafeParseLocalDate has cyclomatic complexity 16 (threshold 15). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
Hotspot: zio-json/shared/src/main/scala-3/zio/json/macros.scala zio-json/shared/src/main/scala-3/zio/json/macros.scala:797— zio-json/shared/src/main/scala-3/zio/json/macros.scala changed 2 times in last 90 days, and the most complex body those changes touched has cyclomatic complexity 44 in DeriveHelpers.buildProductDecoder at line 797. 1 of those changes was a fix/bug commit, and the other 1 changed it for other reasons — this file is under both repair and feature pressure. Before the next change lands here, make sure the area it touches is under test, then split that area out of the file so the following change is smaller than this one — a file this often edited pays the complexity back every time. Counted over 2026-07-23..2026-10-21, the 90 days ending at the analysed commit. Reproduce with `git log --since='2026-07-23 04:35:47 +00:00' --until='2026-10-21 04:35:47 +00:00' --full-history --no-merges -- zio-json/shared/src/main/scala-3/zio/json/macros.scala`: merges are excluded because a merge re-states changes already counted at their own commits, and history is NOT path-simplified because a change that reached the file through a merged branch is still a change to it. That command counts raw commits and can read HIGHER than this row, which counts a cherry-picked re-land, and a revert together with the commit it undoes, once each — a difference of several commits on a file whose history was re-landed or reverted inside the window.
DeriveJsonDecoder.join (cognitive 264) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:221— DeriveJsonDecoder.join has cognitive complexity 264 (threshold 15). Drivers by points: if/else 67 (190 pts), match/switch 13 (35 pts), loops 8 (28 pts), boolean chains 11 (nesting depth added 165). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
DeriveJsonDecoder.split (cognitive 164) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:520— DeriveJsonDecoder.split has cognitive complexity 164 (threshold 15). Drivers by points: if/else 48 (87 pts), match/switch 20 (65 pts), loops 2 (8 pts), boolean chains 4 (nesting depth added 90). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Lexer.zonedDateTime (cognitive 123) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1337— Lexer.zonedDateTime has cognitive complexity 123 (threshold 15). Drivers by points: if/else 27 (79 pts), boolean chains 31, loops 3 (10 pts), error handling 1 (3 pts) (nesting depth added 61). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
JsonDecoderPlatformSpecific.decodeJsonPipeline (cognitive 108) zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:56— JsonDecoderPlatformSpecific.decodeJsonPipeline has cognitive complexity 108 (threshold 15). Drivers by points: match/switch 7 (59 pts), loops 7 (28 pts), if/else 7 (13 pts), error handling 1 (7 pts), boolean chains 1 (nesting depth added 85). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident.
Lexer.instant (cognitive 98) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508— Lexer.instant has cognitive complexity 98 (threshold 15). Drivers by points: if/else 21 (60 pts), boolean chains 29, loops 2 (9 pts) (nesting depth added 46). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
parsers.unsafeParseZonedDateTime (cognitive 95) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:917— parsers.unsafeParseZonedDateTime has cognitive complexity 95 (threshold 15). Drivers by points: if/else 26 (55 pts), boolean chains 31, loops 3 (7 pts), error handling 1 (2 pts) (nesting depth added 34). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
DeriveHelpers.buildProductDecoder (cognitive 91) zio-json/shared/src/main/scala-3/zio/json/macros.scala:797— DeriveHelpers.buildProductDecoder has cognitive complexity 91 (threshold 15). Drivers by points: if/else 36 (65 pts), match/switch 7 (12 pts), loops 5 (8 pts), boolean chains 6 (nesting depth added 37). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Lexer.duration (cognitive 84) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:406— Lexer.duration has cognitive complexity 84 (threshold 15). Drivers by points: if/else 28 (61 pts), boolean chains 16, loops 3 (7 pts) (nesting depth added 37). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
Lexer.offsetDateTime (cognitive 79) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:923— Lexer.offsetDateTime has cognitive complexity 79 (threshold 15). Drivers by points: if/else 18 (47 pts), boolean chains 25, loops 2 (7 pts) (nesting depth added 34). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
parsers.unsafeParseInstant (cognitive 77) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125— parsers.unsafeParseInstant has cognitive complexity 77 (threshold 15). Drivers by points: if/else 20 (41 pts), boolean chains 29, loops 2 (7 pts) (nesting depth added 26). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
DeriveHelpers.buildSumDecoder (cognitive 72) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1007— DeriveHelpers.buildSumDecoder has cognitive complexity 72 (threshold 15). Drivers by points: if/else 31 (47 pts), match/switch 8 (21 pts), loops 1 (3 pts), boolean chains 1 (nesting depth added 31). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
SafeNumbers.write (cognitive 69) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:279— SafeNumbers.write has cognitive complexity 69 (threshold 15). Drivers by points: if/else 25 (55 pts), loops 2 (9 pts), boolean chains 5 (nesting depth added 37). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
parsers.unsafeParseOffsetDateTime (cognitive 61) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:521— parsers.unsafeParseOffsetDateTime has cognitive complexity 61 (threshold 15). Drivers by points: if/else 17 (31 pts), boolean chains 25, loops 2 (5 pts) (nesting depth added 17). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
parsers.unsafeParseDuration (cognitive 60) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:26— parsers.unsafeParseDuration has cognitive complexity 60 (threshold 15). Drivers by points: if/else 27 (40 pts), boolean chains 16, loops 3 (4 pts) (nesting depth added 14). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Lexer.offsetTime (cognitive 59) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1071— Lexer.offsetTime has cognitive complexity 59 (threshold 15). Drivers by points: if/else 15 (42 pts), boolean chains 13, loops 1 (4 pts) (nesting depth added 30). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
Lexer.period (cognitive 54) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1168— Lexer.period has cognitive complexity 54 (threshold 15). Drivers by points: if/else 19 (39 pts), boolean chains 11, loops 2 (4 pts) (nesting depth added 22). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
JsonEncoderPlatformSpecific.encodeJsonDelimitedPipeline (cognitive 52) zio-json/jvm/src/main/scala/zio/json/JsonEncoderPlatformSpecific.scala:15— JsonEncoderPlatformSpecific.encodeJsonDelimitedPipeline has cognitive complexity 52 (threshold 15). Drivers by points: loops 7 (30 pts), if/else 4 (15 pts), match/switch 1 (6 pts), boolean chains 1 (nesting depth added 39). To reduce it, break up the iteration: give each loop body a named function, and split a multi-phase loop into one function per phase so no single body carries the whole pipeline.
Lexer.localDateTime (cognitive 47) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:729— Lexer.localDateTime has cognitive complexity 47 (threshold 15). Drivers by points: boolean chains 20, if/else 9 (20 pts), loops 2 (7 pts) (nesting depth added 16). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
parsers.unsafeParseOffsetTime (cognitive 44) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:666— parsers.unsafeParseOffsetTime has cognitive complexity 44 (threshold 15). Drivers by points: if/else 14 (28 pts), boolean chains 13, loops 1 (3 pts) (nesting depth added 16). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
DeriveJsonEncoder.join (cognitive 43) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:736— DeriveJsonEncoder.join has cognitive complexity 43 (threshold 15). Drivers by points: if/else 12 (23 pts), match/switch 6 (14 pts), loops 2 (4 pts), boolean chains 2 (nesting depth added 21). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Lexer.zoneOffset (cognitive 40) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1520— Lexer.zoneOffset has cognitive complexity 40 (threshold 15). Drivers by points: if/else 11 (31 pts), boolean chains 9 (nesting depth added 20). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
SafeNumbers.writeBigDecimal (cognitive 38) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:124— SafeNumbers.writeBigDecimal has cognitive complexity 38 (threshold 15). Drivers by points: if/else 18 (33 pts), loops 1 (4 pts), boolean chains 1 (nesting depth added 18). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
parsers.unsafeParseLocalDateTime (cognitive 37) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:339— parsers.unsafeParseLocalDateTime has cognitive complexity 37 (threshold 15). Drivers by points: boolean chains 20, if/else 8 (12 pts), loops 2 (5 pts) (nesting depth added 7). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
parsers.unsafeParsePeriod (cognitive 37) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:760— parsers.unsafeParsePeriod has cognitive complexity 37 (threshold 15). Drivers by points: if/else 18 (24 pts), boolean chains 11, loops 2 (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
SafeNumbers.writeBigDecimal (cognitive 31) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:124— SafeNumbers.writeBigDecimal has cognitive complexity 31 (threshold 15). Drivers by points: if/else 14 (26 pts), loops 1 (4 pts), boolean chains 1 (nesting depth added 15). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
parsers.unsafeParseZoneOffset (cognitive 30) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1112— parsers.unsafeParseZoneOffset has cognitive complexity 30 (threshold 15). Drivers by points: if/else 10 (21 pts), boolean chains 9 (nesting depth added 11). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
DeriveJsonEncoder.split (cognitive 29) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:806— DeriveJsonEncoder.split has cognitive complexity 29 (threshold 15). Drivers by points: loops 6 (12 pts), if/else 8 (10 pts), match/switch 4 (5 pts), boolean chains 2 (nesting depth added 9). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Lexer.localTime (cognitive 27) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:839— Lexer.localTime has cognitive complexity 27 (threshold 15). Drivers by points: if/else 6 (15 pts), boolean chains 8, loops 1 (4 pts) (nesting depth added 12). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
DeriveHelpers.buildProductEncoder (cognitive 26) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1154— DeriveHelpers.buildProductEncoder has cognitive complexity 26 (threshold 15). Drivers by points: if/else 10 (16 pts), match/switch 4 (6 pts), boolean chains 2, loops 2 (nesting depth added 8). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
JsonDecoder.either (cognitive 25) zio-json/shared/src/main/scala/zio/json/JsonDecoder.scala:657— JsonDecoder.either has cognitive complexity 25 (threshold 15). Drivers by points: if/else 12 (21 pts), boolean chains 2, loops 1 (2 pts) (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
serializers.write (cognitive 23) zio-json/shared/src/main/scala/zio/json/javatime/serializers.scala:29— serializers.write has cognitive complexity 23 (threshold 15). Drivers by points: if/else 10 (21 pts), boolean chains 2 (nesting depth added 11). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
Lexer.yearMonth (cognitive 22) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1285— Lexer.yearMonth has cognitive complexity 22 (threshold 15). Drivers by points: boolean chains 10, if/else 5 (9 pts), loops 1 (3 pts) (nesting depth added 6). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
SafeNumbers.digitCount (cognitive 21) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:786— SafeNumbers.digitCount has cognitive complexity 21 (threshold 15). Drivers by points: if/else 16 (21 pts) (nesting depth added 5). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition, and where an else follows a branch that already returns, drop the trailing else and let the rest of the body continue at one level.
EncoderLowPriority2.keyValueIterable (cognitive 21) zio-json/shared/src/main/scala/zio/json/JsonEncoder.scala:585— EncoderLowPriority2.keyValueIterable has cognitive complexity 21 (threshold 15). Drivers by points: if/else 13 (18 pts), match/switch 1 (2 pts), loops 1 (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
yaml.jsonToYaml (cognitive 20) zio-json-yaml/src/main/scala/zio/json/yaml/package.scala:80— yaml.jsonToYaml has cognitive complexity 20 (threshold 15). Drivers by points: if/else 9 (14 pts), match/switch 2 (4 pts), boolean chains 2 (nesting depth added 7). The drivers above price the dispatch low by construction — a dispatch is charged once however many cases it lists, while each branch inside an arm is charged in full — so most of this count is what the case bodies hold, and the arms are where it can be reduced. To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident.
SafeNumbers.digitCount (cognitive 20) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:804— SafeNumbers.digitCount has cognitive complexity 20 (threshold 15). Drivers by points: if/else 15 (20 pts) (nesting depth added 5). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This shape REPEATS in the file: 2 other methods here (SafeNumbers.writeMantissa, SafeNumbers.writeMantissaWithDot) have the same decision points, in the same order, at the same nesting depths — so this is one pattern written 3 times rather than 3 independent problems. Splitting this body alone leaves the other 2 exactly as they are. Where these are variations on one operation, the change that clears all 3 is the shared one: lift the common shape into a single routine the variants call, parameterised by whatever genuinely differs between them, and keep in each method only the part that is not shared.
parsers.unsafeParseLocalTime (cognitive 20) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:445— parsers.unsafeParseLocalTime has cognitive complexity 20 (threshold 15). Drivers by points: if/else 5 (9 pts), boolean chains 8, loops 1 (3 pts) (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Lexer.uuid (cognitive 19) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:287— Lexer.uuid has cognitive complexity 19 (threshold 15). Drivers by points: if/else 6 (14 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 9). To reduce it, flatten the nesting: this score is depth rather than breadth — most of its points come from checks stacked inside one another, so the work sits several levels in. Invert each enclosing check into an early exit (a return, or the language's equivalent) so the happy path stays at one level, and where a level cannot be exited early, lift the block it encloses into its own named function.
StringMatrix.update (cognitive 19) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1876— StringMatrix.update has cognitive complexity 19 (threshold 15). Drivers by points: if/else 6 (13 pts), loops 2 (6 pts) (nesting depth added 11). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Utf8ChunkReader.decodeMultiByte (cognitive 19) zio-json/shared/src/main/scala/zio/json/internal/readers.scala:258— Utf8ChunkReader.decodeMultiByte has cognitive complexity 19 (threshold 15). Drivers by points: if/else 15 (18 pts), boolean chains 1 (nesting depth added 3). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition, and where an else follows a branch that already returns, drop the trailing else and let the rest of the body continue at one level.
Lexer.localDate (cognitive 18) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:670— Lexer.localDate has cognitive complexity 18 (threshold 15). Drivers by points: boolean chains 13, if/else 3, loops 1 (2 pts) (nesting depth added 1). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
Lexer.year (cognitive 18) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1241— Lexer.year has cognitive complexity 18 (threshold 15). Drivers by points: boolean chains 9, if/else 4 (6 pts), loops 1 (3 pts) (nesting depth added 4). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
parsers.unsafeParseLocalDate (cognitive 17) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:284— parsers.unsafeParseLocalDate has cognitive complexity 17 (threshold 15). Drivers by points: boolean chains 12, if/else 3, loops 1 (2 pts) (nesting depth added 1). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
parsers.unsafeParseYearMonth (cognitive 17) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:869— parsers.unsafeParseYearMonth has cognitive complexity 17 (threshold 15). Drivers by points: boolean chains 10, if/else 4 (5 pts), loops 1 (2 pts) (nesting depth added 2). To reduce it, name the conditions: bind each compound test to a well-named local or a small predicate function, so the body reads as a sequence of named decisions rather than a chain of operators.
D4 · Code Duplication· Near-duplicate member family (6 members, 44 shared lines) · ×1
Near-duplicate member family (6 members, 44 shared lines) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235-314 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:360-457 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:495-596 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:235-314 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:360-457 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:495-596 — These 6 members are variants of one another: a block of 44 lines reported below appears in every one of them, and the pairwise near-duplicate rows they would otherwise produce are collapsed into this row. Read them as one construct written 6 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 6 times.
D4 · Code Duplication· Near-duplicate member family (4 members, 39 shared lines) · ×1
Near-duplicate member family (4 members, 39 shared lines) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:279— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:279-390 | zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:392-491 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:283-385 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:387-486 — These 4 members are variants of one another: a block of 39 lines reported below appears in every one of them, and the pairwise near-duplicate rows they would otherwise produce are collapsed into this row. Read them as one construct written 4 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 4 times.
D4 · Code Duplication· Near-duplicate member family (4 members, 29 shared lines) · ×1
Near-duplicate member family (4 members, 29 shared lines) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151-188 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:193-230 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:151-188 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:193-230 — These 4 members are variants of one another: a block of 29 lines reported below appears in every one of them, and the pairwise near-duplicate rows they would otherwise produce are collapsed into this row. Read them as one construct written 4 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 4 times.
Near-duplicate member pair (16 shared lines) zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:614— zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:614-650 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:652-703 — These two members are variants of one another: 16 of their lines are already reported as duplicated blocks below, spread through both bodies rather than gathered into one. Read them as a single construct written twice. The repair is at the members' grain — factor the shared pipeline into one implementation the two call with their differences as parameters or as an injected step, or, where the difference is systematic (sync against async, one transport against another), generate one from the other. Extracting the individual blocks below is not the same fix: it leaves the two bodies in place and the next edit still has to be made twice.
D4 · Code Duplication· Members sharing a duplicated core (14 members, 50+ identical tokens) · ×1
Members sharing a duplicated core (14 members, 50+ identical tokens) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:508-668 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:670-727 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:729-837 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:923-1069 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1241-1283 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1285-1335 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1337-1518 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:125-282 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:284-337 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:339-443 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:521-664 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:829-867 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:869-915 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:917-1096 — These 14 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 14 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 14 times.
D4 · Code Duplication· Members sharing a duplicated core (6 members, 50+ identical tokens) · ×1
Members sharing a duplicated core (6 members, 50+ identical tokens) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:912— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:912-923 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:929-951 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:957-976 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1571-1582 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1588-1610 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1616-1635 — These 6 members share a duplicated core: a run of at least 50 identical tokens appears in every one of them. That run is NOT broken out as duplicated-block rows below — it is what admitted this row, and the blocks below cover only the part of it that clears the block floor, so they understate the correspondence. Read the members as one construct written 6 times. The repair is at the members' grain — factor the shared implementation out once and have all of them call it with their differences as parameters or as an injected step, or, where the difference is systematic, generate them from one template. Extracting the individual blocks below is not the same fix: it leaves every body in place and the next edit still has to be made 6 times.
Duplicated block (49–50 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:335— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:335-383 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:467-516 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:335` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (43 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:280— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:280-322 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:412-454 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:280` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (34 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:136— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:136-169 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:140-173 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:136` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (33 lines × 6) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:273— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:273-305 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:407-439 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:542-574 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:273-305 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:407-439 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:542-574 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:273` it runs out through the closing brace of the declaration holding it and carries on into the declaration that follows — the window is the tail of one member plus the head of the next, so no call can be substituted for those exact lines, and the smallest declaration that contains all of them is the type they sit in. The repeated unit is the member each site sits in: where those members' bodies are the same, move one whole member to the shared location and have the others delegate to it; where the copies are a run of near-identical overloads or wrappers that differ only in their signatures, the repetition IS the run — a one-line delegation has no helper inside it to lift — so generate the run from the set it enumerates, or accept it and keep each member's own documentation with it.
Duplicated block (28 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:363— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:363-390 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:358-385 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:363` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (27–28 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:651— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:651-677 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:691-718 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:651` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (20 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:276— zio-json/shared/src/main/scala-3/zio/json/macros.scala:276-295 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:441-460 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (18 lines × 3) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:99— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:99-116 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:99-116 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:129-146 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:99` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (17 lines × 4) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:355— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:355-371 | zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:456-472 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:350-366 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:451-467 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:355` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (15–16 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1493— zio-json/shared/src/main/scala-3/zio/json/macros.scala:1493-1508 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1773-1787 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:1493` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (15 lines × 3) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:411— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:411-425 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:303-317 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:406-420 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:411` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (14–15 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:547— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:547-560 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:565-579 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:547` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (14 lines × 4) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:152— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:152-165 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:194-207 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:152-165 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:194-207 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:152` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13–14 lines × 3) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:272— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:272-285 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:404-417 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:862-874 — before extracting anything, compare `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala` and `zio-json/shared/src/main/scala-3/zio/json/macros.scala` as WHOLE FILES: this scan already matched 18 separate duplicated blocks between them, totalling at least 231 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place.
Duplicated block (14 lines × 2) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:261— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:261-274 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:265-278 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (13 lines × 10) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:697— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:697-710 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:755-768 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:949-962 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1311-1323 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1363-1375 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:308-321 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:363-376 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:545-558 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:893-905 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:941-953 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:697` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (13 lines × 3) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1440— zio-json/shared/src/main/scala-3/zio/json/macros.scala:1440-1452 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1530-1542 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1810-1822 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (12–13 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:904— zio-json/shared/src/main/scala-3/zio/json/macros.scala:904-915 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:947-959 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (11–12 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:262— zio-json/shared/src/main/scala-3/zio/json/macros.scala:262-272 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:419-430 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Each matched range is the entire body of the declaration above it, so the region is already a complete unit: move that whole declaration to the shared location and have each site call it, rather than lifting the lines out of their bodies. Any `return` inside it is the body's own exit and keeps its meaning in the moved unit.
Duplicated block (11 lines × 4) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:464— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:464-474 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:603-613 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:464-474 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:603-613 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:464` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10–11 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:1278— zio-json/shared/src/main/scala-3/zio/json/macros.scala:1278-1288 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:1310-1319 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:1278` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9–10 lines × 5) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:786— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:786-795 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:845-854 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:980-989 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1077-1086 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1390-1398 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:786` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (3–10 lines × 5) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:550— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:550-559 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:717-719 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:769-778 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:963-972 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1376-1385 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:550` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 5) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:395— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:395-403 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:450-458 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:577-585 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:671-679 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:968-976 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (9 lines × 4) zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:297— zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:297-305 | zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:409-417 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:301-309 | zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala:404-412 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala` as WHOLE FILES: this scan already matched 25 separate duplicated blocks between them, totalling at least 385 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala:297` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (8 lines × 10) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:513— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:513-520 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:568-575 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:734-741 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:785-792 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:844-851 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:928-935 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:979-986 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1076-1083 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1290-1297 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1342-1349 — all 10 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:513` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7–8 lines × 2) zio-json/shared/src/main/scala-3/zio/json/macros.scala:539— zio-json/shared/src/main/scala-3/zio/json/macros.scala:539-546 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:570-576 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-3/zio/json/macros.scala:570` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 6) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:514— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:514-520 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:677-683 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:735-741 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:929-935 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1291-1297 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1343-1349 — all 6 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:514` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 3) zio-json/shared/src/main/scala-3/zio/json/macros.scala:351— zio-json/shared/src/main/scala-3/zio/json/macros.scala:351-357 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:504-510 | zio-json/shared/src/main/scala-3/zio/json/macros.scala:600-607 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (6–7 lines × 2) zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:603— zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:603-608 | zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:630-636 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:603` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (6 lines × 13) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:130— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:130-135 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:185-190 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:289-294 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:323-328 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:344-349 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:395-400 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:450-455 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:526-531 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:577-582 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:671-676 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:874-879 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:922-927 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:968-973 — all 13 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (6 lines × 8) zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40— zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40-45 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:66-71 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:92-97 | zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:122-127 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40-45 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:66-71 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:92-97 | zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala:122-127 — before extracting anything, compare `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala` and `zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala` as WHOLE FILES: this scan already matched 20 separate duplicated blocks between them, totalling at least 288 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:40` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 16) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:130— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:130-134 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:166-170 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:185-189 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:289-293 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:344-348 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:378-382 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:395-399 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:450-454 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:526-530 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:560-564 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:577-581 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:671-675 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:874-878 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:922-926 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:955-959 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:968-972 — all 16 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. ★ These copies have DRIFTED, and that is worth reading before extracting anything: just after the matched lines, `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:171` calls `charAt` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:400` does not — after which the two agree again for 3 more lines. One of those two behaviours is the intended one and the other is what a copy-paste left behind, so decide which BEFORE unifying them: extracting the shared part will silently settle it, and if the copy that skips the call is the wrong one, that bug is already live.
Duplicated block (2–5 lines × 14) zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:522— zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:522-526 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:685-689 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:743-747 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:937-941 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1253-1254 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1298-1299 | zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1350-1351 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:137-141 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:296-300 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:351-355 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:533-537 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:839-840 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:880-881 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:928-929 — before extracting anything, compare `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala` and `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala` as WHOLE FILES: this scan already matched 10 separate duplicated blocks between them, totalling at least 97 lines, which is the signature of one file having been copied from the other rather than of a helper waiting to be extracted. The two sit in different directories, so one cannot simply be deleted in favour of the other while both are reached separately: hoist the shared part into a location both already depend on and have each file call it, and retire whichever file turns out to have no caller of its own left. Extracting one helper per block leaves the fork in place. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:522` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Duplicated block (5 lines × 5) zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:253— zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:253-257 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:638-642 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:732-736 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1039-1043 | zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:1140-1144 — all 5 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. Read the line range as the matched WINDOW rather than a finished unit: at `zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala:253` it runs out through the closing brace of the declaration holding it — the window is that declaration's tail, not a fragment that begins part-way through something, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Off the main sequence: zioJson — zioJson: abstractness 0.18, instability 0.00, distance 0.82 — zone of pain — concrete and depended on by 8 project(s), so it's rigid to change.
X17 · Uncapped recursion over a caller-supplied document· Recursive walk over a caller-supplied document has no depth cap · ×1
Recursive walk over a caller-supplied document has no depth cap zio-json/shared/src/main/scala/zio/json/codegen/Generator.scala:211— `JsonType.unifyTypes` is public and takes `json: Json` from its caller, and it calls itself at line 211 with a piece of `json`, not as a tail call the compiler turns into a loop — and nowhere in `JsonType.unifyTypes` is there a depth parameter, a descent counter, or any other cap. The walk therefore spends one stack frame per LEVEL of the value it is handed, so the nesting of the caller's document — not this code — decides how deep the stack goes. On the JVM's default 1 MB thread stack a walk like this one throws `StackOverflowError` from about 500–2,000 levels on a cold first call and 6,000–17,000 once warmed up (OpenJDK 21 and 25), while `ujson.read`, Jackson's `readTree` before 2.15 and circe before 0.14.16 accept any nesting (2,000,000 levels from 4 MB) and circe 0.14.16 accepts 4,096 — on a cold JVM even play-json's cap of 1,000 is past the point the walk fails. `StackOverflowError` is not `NonFatal`: `Try`, `case NonFatal(e)` and `recover` do not stop it, and in a `Future` on the global execution context it leaves the future forever incomplete. Thread a depth argument through `JsonType.unifyTypes` and reject the value past a fixed maximum, or rewrite the descent with an explicit stack.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1509— `!zoneId.isInstanceOf[ZoneOffset] || zoneId.asInstanceOf[ZoneOffset].getTotalSeconds % 900 == 0` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:475— `Math.abs(halfwayDiff) > 1 || savedBitNum <= 0` appears character-identically in 2 files — zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala, zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:482— `ch >= '0' && ch <= '9' && nanoDigitWeight != 0` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:535— `ch >= '0' && ch <= '9' && yearDigits < 10` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:698— `ch >= '0' && ch <= '9' && yearDigits < 9` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:914— `ch0 != '-' || ch1 != '-' || ch2 < '0' || ch2 > '9' || ch3 < '0' || ch3 > '9' || ch4 != '-' || ch5 < '0' || ch5 > '9' || ch6 < '0' || ch6 > '…` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:625— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9'` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:594— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9' || ch0 > '5'` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:779— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9' || ch2 != '-' || ch3 < '0' || ch3 > '9' || ch4 < '0' || ch4 > '9' || ch5 != 'T' || day == 0…` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:560— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9' || ch2 != '-' || ch3 < '0' || ch3 > '9' || ch4 < '0' || ch4 > '9' || ch5 != 'T' || month < …` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:720— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9' || ch2 != '-' || ch3 < '0' || ch3 > '9' || ch4 < '0' || ch4 > '9' || month < 1 || month > 1…` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:578— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9' || ch2 != ':' || ch3 < '0' || ch3 > '9' || ch4 < '0' || ch4 > '9' || ch3 > '5' || hour > 23` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:1329— `ch0 < '0' || ch0 > '9' || ch1 < '0' || ch1 > '9' || month < 1 || month > 12` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:639— `consume && current != -1 || !consume && current != '"'` appears character-identically in 2 files — zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala, zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:334— `in.readChar() == 'u' && in.readChar() == 'l' && in.readChar() == 'l'` appears character-identically in 3 files — zio-json/shared/src/main/scala-2.x/zio/json/macros.scala, zio-json/shared/src/main/scala-3/zio/json/macros.scala, zio-json/shared/src/main/scala/zio/json/JsonDecoder.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:160— `isPrecedingLowerCased || i > 1 && i < len && isLowerCase(s.charAt(i))` appears character-identically in 2 files — zio-json/shared/src/main/scala-2.x/zio/json/macros.scala, zio-json/shared/src/main/scala-3/zio/json/macros.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:137— `isPrecedingNotUpperCased || i > 1 && i < len && !isUpperCase(s.charAt(i))` appears character-identically in 2 files — zio-json/shared/src/main/scala-2.x/zio/json/macros.scala, zio-json/shared/src/main/scala-3/zio/json/macros.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:445— `loM10 < 4294967296L && e10 >= loDigits - 23 && e10 <= 19 - loDigits` appears character-identically in 2 files — zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala, zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala:580— `loM10 < 4503599627370496L && e10 >= -22 && e10 <= 38 - loDigits` appears character-identically in 2 files — zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala, zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala-2.x/zio/json/macros.scala:94— `s.indexOf('_') == -1 && s.indexOf('-') == -1` appears character-identically in 2 files — zio-json/shared/src/main/scala-2.x/zio/json/macros.scala, zio-json/shared/src/main/scala-3/zio/json/macros.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:464— `x < -106751991167300L || x > 106751991167300L` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:472— `x < -153722867280912930L || x > 153722867280912930L` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Duplicated predicate zio-json/shared/src/main/scala/zio/json/internal/lexer.scala:468— `x < -2562047788015215L || x > 2562047788015215L` appears character-identically in 2 files — zio-json/shared/src/main/scala/zio/json/internal/lexer.scala, zio-json/shared/src/main/scala/zio/json/javatime/parsers.scala. It is one line, so the duplication detector's token window never sees it; the copies drift when only one is corrected. Give the condition a name and one home.
Orphaned file zio-json/shared/src/main/scala/zio/json/JsonCodec.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/shared/src/main/scala/zio/json/codegen/Generator.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/jmh/scala/zio/json/GoogleMapsAPIBenchmarks.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json-macros/shared/src/main/scala/zio/json/jsonDerive.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file project/NeoJmhPlugin.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/jmh/scala/zio/json/internal/SafeNumbersBenchmarks.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json-interop-enumeratum/shared/src/main/scala/enumeratum/values/ZioJsonValueEnum.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json-golden/src/main/scala/zio/json/golden/package.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/jmh/scala/zio/json/TwitterAPIBenchmarks.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/main/scala/zio/json/JsonEncoderPlatformSpecific.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/jmh/scala/zio/json/GeoJSONBenchmarks.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file zio-json/jvm/src/main/scala/zio/JsonPackagePlatformSpecific.scala:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Off-boarding risk: anonymized user #1 — If anonymized user #1 becomes unavailable, 6 significant file(s) lose their only recent owner: zio-json/jvm-native/src/main/scala/zio/json/internal/SafeNumbers.scala, zio-json/js/src/main/scala/zio/json/internal/SafeNumbers.scala, zio-json/js/src/main/scala/zio/json/internal/UnsafeNumbers.scala, zio-json/jvm-native/src/main/scala/zio/json/internal/UnsafeNumbers.scala, zio-json/shared/src/main/scala/zio/json/internal/writers.scala, zio-json/shared/src/main/scala-2.x/zio/json/JsonFieldDecoder.scala. Pair on, review, or document these before any departure.
Off-boarding risk: anonymized user #2 — If anonymized user #2 becomes unavailable, 5 significant file(s) lose their only recent owner: zio-json/jvm/src/jmh/scala/zio/json/OrElseDecoderBenchmarks.scala, zio-json/shared/src/main/scala/zio/json/ast/JsonCursor.scala, zio-json/jvm/src/jmh/scala/zio/json/NestingDepthBenchmarks.scala, zio-json/jvm/src/jmh/scala/zio/json/ChunkDecoderBenchmarks.scala, zio-json/jvm/src/jmh/scala/zio/json/BooleanArrayReproBenchmarks.scala. Pair on, review, or document these before any departure.
Disabled test zio-json/jvm/src/test/scala/zio/json/JsonTestSuiteSpec.scala:43— A test is skipped/ignored — coverage that looks present but never runs. Re-enable it or delete it so the green run means something.
Disabled test zio-json/shared/src/test/scala/zio/json/ConfigurableDeriveCodecSpec.scala:354— A test is skipped/ignored — coverage that looks present but never runs. Re-enable it or delete it so the green run means something.
No ADRs found — No ADRs found. No recognised ADR directory (`docs/adr/`, `docs/decisions/`, `adr/`, `docs/rfcs/`, an `ADR0001/` folder, or their siblings) exists anywhere in this tree. What was searched, so you can tell an empty log from a search that missed one: every directory under the tree (build output, dependencies and VCS metadata excepted), for a document that is either any non-index page inside a recognised ADR directory, whatever its name and however deeply nested (`docs/adr/use-postgres.md`, `docs/adr/2024/0001-x.md`); or a file anywhere whose name is ADR-shaped (`0001-use-postgres.md`, `adr-012-caching.md`); or, when neither turned anything up, a document carrying the decision-record signature (an "Architecture Decision Record" heading, or Status / Context / Decision / Consequences as section headings). A decision log that clears none of these — unnumbered files outside any recognised directory, without those headings — is not seen by this check and this row is then wrong. If that is your case, say so rather than renaming anything; otherwise, consider recording architectural decisions in `docs/adr/`.
D26 · Project Cohesion· Projects may be oversized for their cohesion · ×1
Projects may be oversized for their cohesion — 1 of 1 project(s) overshoot their size bounds, lowering Project Cohesion to 0.0/10. The most over is `(repository root)` (16699 LoC, 249 module-visible types across 26 directories). Review these for cohesion — draw the boundary inside the module first (group each responsibility into its own package or directory and keep the cross-boundary members non-public), since splitting a published package moves types between packages and breaks consumers.
D34 · Knowledge Freshness· Orphaned files with no living knowledge · ×1
Orphaned files with no living knowledge — 13 of 44 analysed file(s) have no living knowledge left — their last meaningful change has decayed away, so if one breaks, no one currently understands it (counted over production source files of roughly 2,400 bytes or more, excluding vendored, generated and example/demo trees and test files identified by path convention, largest first; 44 of the 87 production source files in this repository met that bar). None is large enough to earn a read-through of its own, so this row stands in for the per-file rows rather than raising one each — most significant first: zio-json/shared/src/main/scala/zio/json/JsonCodec.scala, zio-json/shared/src/main/scala/zio/json/codegen/Generator.scala, zio-json/jvm/src/jmh/scala/zio/json/GoogleMapsAPIBenchmarks.scala, zio-json-macros/shared/src/main/scala/zio/json/jsonDerive.scala, zio-json/jvm/src/main/scala/zio/json/JsonDecoderPlatformSpecific.scala, project/NeoJmhPlugin.scala, zio-json/jvm/src/jmh/scala/zio/json/internal/SafeNumbersBenchmarks.scala, zio-json-interop-enumeratum/shared/src/main/scala/enumeratum/values/ZioJsonValueEnum.scala (and 5 more). Attach the read to the next change that touches one of them: have a second person review that change, and leave behind a short comment or test recording what the file is for, so the knowledge comes back at the cost of a change you were making anyway.
No ADRs — No Architecture Decision Records found — no conventional ADR directory, no numbered `NNNN-title` documents in any markup this check reads, and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.
M2 · Architecture documentation· No architecture diagram/doc · ×1
No architecture diagram/doc — No C4/Structurizr/PlantUML/Mermaid/Graphviz/D2 diagram, no drawn diagram named for the architecture, no file named `architecture` or `design` in any markup this check reads, and nothing in the README, docs or contributor guides that announces the shape — no `## Architecture` heading, no "architecture overview"/"high-level design" phrasing, no "the architecture is …" introduction, no guided code tour. A shape laid out in prose that never names itself as the architecture is not visible to this check, and neither is one kept outside the repository, so this row reports the absence of a re-findable shape document — not evidence that nobody wrote the shape down.
X5 · Nullable reference types· Scala's null is not held to the type system everywhere · ×1
Scala's null is not held to the type system everywhere — No build over this repository's 71 Scala product file(s) passes `-Yexplicit-nulls`, enables WartRemover's `Null` wart or runs Scalafix's `DisableSyntax.noNulls`, so every reference type admits null and nothing reports a `null` written into the code or returned from a Java API — the first one to reach a method call is a `NullPointerException`. `Option` by convention is a habit no tool here holds the code to.
Outdated: org.http4s:http4s-dsl_2.13 — `org.http4s %% http4s-dsl_2.13` is declared at 0.23.38 in build.sbt, but 1.0-4-a7fc4a9 is the current release on Maven Central. An sbt declaration names an exact version, so this repository builds against 0.23.38 until the declaration is edited — there is no lockfile refresh that would move it.
Outdated: org.typelevel:cats-effect_2.13 — `org.typelevel %% cats-effect_2.13` is declared at 3.7.0 in build.sbt, but 3.7.1 is the current release on Maven Central. An sbt declaration names an exact version, so this repository builds against 3.7.0 until the declaration is edited — there is no lockfile refresh that would move it.
Appendix B — Reproduction & audit trail
Every external tool invocation behind a deep-scan dimension — the tool, its captured version, the exact command, how many findings it yielded, and a link to the retained raw output. To reproduce any finding: check out the same commit and run the command shown (repo-relative — never an absolute scratch path). The complete raw scanner output is retained verbatim under artifacts/raw/ (indexed in artifacts/raw/index.json); per-invocation exit codes and wall-clock durations are in sidecar.json — kept out of this table so the rendered report stays byte-identical across runs of the same commit.
trivy: not applicable — No Infrastructure-as-Code or container manifests found (Dockerfile, Docker Compose, Terraform, Kubernetes/Helm, CloudFormation, ARM, Bicep, Ansible); nothing to scan.
semgrep: not applicable — No personal data was found crossing a boundary the PII/GDPR ruleset checks — nothing written to a log or console sink, placed in a URL or query string, or persisted to browser storage. That is a clean result for the LEAK surface only: this ruleset detects personal data escaping, it does not inventory the personal data a repository holds, so it is not evidence that this repository has no personal-data surface. The personal-data map (Appendix C) and the C1-C5 compliance cards are what speak to that. semgrep could not parse 2 file(s) — `zio-json/shared/src/main/scala-3/zio/json/macros.scala`, `zio-json/shared/src/main/scala-3/zio/json/union_derivation.scala` — so the PII/GDPR sweep did not cover them at all.
disclosure: not applicable — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
Run 01a15d64-9322-760e-abb5-3b228f1b7c82 · every finding is also locatable in findings.md, and the complete scoring record (with exit codes + durations) in sidecar.json.
Issues: 44 · Warnings: 333 · Recommendations: 47 · Info: 2 — Appendix A · all findings · full markdown report.
Generated by Watchdog — deterministic code-health analysis. 21-10-2026 @ 07:37 UTC.
Downloadable artifacts
Machine-readable and reproducible from this commit + frozen rubric — drop them straight into a contract appendix, a CRA dossier, or a downstream SCA / VEX tool.