GROOVY-12093: Static method override on trait implementer ignored whe…

[paulk-asert]

…n called via this in trait body (cont'd)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 87.50000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 68.4528%. Comparing base (40c6203) to head (19fa2a8).
⚠️ Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
...groovy/transform/trait/TraitASTTransformation.java	86.7924%	2 Missing and 5 partials ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##               master      #2618        +/-   ##
==================================================
- Coverage     68.4541%   68.4528%   -0.0013%     
- Complexity      33505      33521        +16     
==================================================
  Files            1518       1518                
  Lines          127107     127162        +55     
  Branches        23065      23079        +14     
==================================================
+ Hits            87010      87046        +36     
- Misses          32371      32380         +9     
- Partials         7726       7736        +10     

Files with missing lines	Coverage Δ
...oovy/transform/trait/TraitReceiverTransformer.java	89.1429% <100.0000%> (+0.1255%)	⬆️
...groovy/transform/trait/TraitASTTransformation.java	90.5405% <86.7924%> (-0.6267%)	⬇️

... and 6 files with indirect coverage changes

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[Copilot]

Pull request overview

Implements GROOVY-12093 by introducing an @Anchored marker for trait static methods to opt out of per-implementer override-style dispatch and (by default) promote those methods onto the generated trait interface, plus adds comprehensive tests covering the resulting dispatch matrix.

Changes:

• Add groovy.transform.Anchored annotation with inInterface opt-out.
• Update trait static dispatch rewriting to treat @Anchored statics as declarer-bound (helper/interface-static flavor).
• Extend TraitASTTransformation to validate @Anchored usage and generate interface forwarders; add new regression/behavior tests.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
src/main/java/groovy/transform/Anchored.java	Adds the public @Anchored marker annotation and its inInterface option.
src/main/java/org/codehaus/groovy/transform/trait/TraitReceiverTransformer.java	Skips implementer-routing for @Anchored trait statics during receiver rewriting.
src/main/java/org/codehaus/groovy/transform/trait/TraitASTTransformation.java	Validates @Anchored usage and generates interface forwarders for anchored statics.
src/test/groovy/org/codehaus/groovy/transform/traitx/TraitStaticDispatchMatrix.groovy	Adds an executable behavior matrix covering trait/static dispatch scenarios (incl. anchored rows).
src/test/groovy/org/codehaus/groovy/transform/traitx/Groovy12093.groovy	Adds targeted tests for @Anchored semantics, STC interactions, and validation errors.

[testlens-app]

✅ All tests passed ✅

⚠️ TestLens detected flakiness ⚠️

Test Summary

Build and test / lts (17, windows-latest, 1) > :test

Test	Runs
GenericsSTCTest > testReturnTypeInferenceWithMethodGenerics18()	❌ ✅
GenericsSTCTest > testReturnTypeInferenceWithMethodGenerics18a()	❌ ✅
GenericsStaticCompileTest > testReturnTypeInferenceWithMethodGenerics18()	❌ ✅
GenericsStaticCompileTest > testReturnTypeInferenceWithMethodGenerics18a()	❌ ✅

🏷️ Commit: 19fa2a8
▶️ Tests: 18675 executed
⚪️ Checks: 30/30 completed

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