[codeconsole]

A static accessor method of a trait could not be referenced as a property from a static method of the implementing class:

trait T { static boolean isVr() { true } }
class C implements T { static m() { vr } }
assert C.m()

This failed to compile in every mode, dynamic included, with "Apparent variable 'vr' was found in a static scope but doesn't refer to a local variable, static field or class", in 4.0.33, 5.0.8 and 6.0.0 too. The same method declared in a superclass works, and so does the same reference from an instance method of C. Static getters, static setters used as assignment targets, and statics inherited through a super trait (trait U extends T) failed the same way.

VariableScopeVisitor.findClassMember creates a pseudo-property for accessor methods of the class and its superclasses. For traits it looked only at fields and properties, and it did not follow a super trait that is still in the extends clause before TraitASTTransformation moves it to the interfaces. It now also matches a trait's non-private static accessor methods: the method itself for a trait in the same compilation unit, the public static forwarder for a precompiled trait. It also queues a trait's super trait. Private static trait methods and static methods of plain interfaces are still not resolved, since neither becomes a member of the implementing class. The pseudo-property construction moved into a shared helper.

Tests

TraitASTTransformationTest.testTraitStaticAccessorFromStaticMethod, testSuperTraitStaticAccessorFromStaticMethod and testPrecompiledTraitStaticAccessorFromStaticMethod fail without the change in dynamic, @TypeChecked and @CompileStatic mode. testTraitPrivateStaticAccessorFromStaticMethod checks that a private static trait accessor stays rejected. groovy.transform.stc.*, org.codehaus.groovy.classgen.* (including asm.sc.*), org.codehaus.groovy.transform.traitx.*, gls.*, bugs.*, groovy.ThisAndSuperTest and groovy.StaticImportTest pass. The Checkstyle and CodeNarc gates pass.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.1021%. Comparing base (cd944a5) to head (3ff2f13).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                 @@
##               master      #3132        +/-   ##
==================================================
+ Coverage     74.1016%   74.1021%   +0.0005%     
- Complexity      43596      43608        +12     
==================================================
  Files            1692       1692                
  Lines          149245     149263        +18     
  Branches        28284      28291         +7     
==================================================
+ Hits           110593     110607        +14     
- Misses          28475      28477         +2     
- Partials        10177      10179         +2     

Files with missing lines	Coverage Δ
...codehaus/groovy/classgen/VariableScopeVisitor.java	94.3428% <100.0000%> (+0.0860%)	⬆️

... and 15 files with indirect coverage changes

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[testlens-app]

✅ All tests passed ✅

🏷️ Commit: 3ff2f13
▶️ Tests: 101859 executed
⚪️ Checks: 26/26 completed

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[daniellansun]

LGTM for GROOVY-12605.

VariableScopeVisitor.findClassMember already synthesised pseudo-properties for superclass accessors, but for traits it only considered fields/properties and did not walk a still-unmoved extends clause. Matching non-private static trait accessors (same-CU method or precompiled public forwarder) and following unresolved super-traits fixes vr / label / setter assignment from a static method of the implementing class in every mode — including precompiled traits and private-static negative cases.

@CompileModesTest matrix is appropriate. CI green.