Audit the other call sites of getEnclosingClassLike to see if they should call #516's getClassLikeOrEnclosing instead - #517
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Suggested reviewers: Merge Risk: 🟠 High · up to The change improves implicit-enum handling but can still fail at runtime: enum-related processing may throw a ClassCastException, and unresolved varargs calls may exceed the AST parameter list and throw an IndexOutOfBoundsException. These correctness risks should be fixed before merging. 🚥 Pre-merge checks | ✅ 2 | ❌ 1❌ Failed checks (1 warning)
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Inline comments:
In `@src/main/java/org/checkerframework/specimin/JavaParserUtil.java`:
- Around line 2065-2068: Guard every result from tryFindAttachedNode with an
instanceof callable-declaration check before casting, including the type and
parameter preservation paths in UnsolvedSymbolGenerator,
FullyQualifiedNameGenerator, and JavaParserUtil. When the result is an
EnumDeclaration representing implicit values() or valueOf(String), skip
preservation rather than attempting the cast.
In
`@src/main/java/org/checkerframework/specimin/unsolved/UnsolvedSymbolGenerator.java`:
- Around line 3163-3164: Update the RuntimeException construction in the
callable invariant check within UnsolvedSymbolGenerator to pass the caught
resolver exception ex as its cause, preserving the original stack trace while
retaining the existing message and failure behavior.
- Around line 3159-3167: Update the parameter lookup in the calleeWithParams
branch so an index beyond the AST parameter count reuses the final AST
parameter, preserving direct lookup for in-range indices. This must support
multiple unresolved varargs arguments without triggering
IndexOutOfBoundsException.
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src/main/java/org/checkerframework/specimin/JavaParserUtil.javasrc/main/java/org/checkerframework/specimin/unsolved/UnsolvedSymbolGenerator.javasrc/test/java/org/checkerframework/specimin/ImplicitEnumMethods2Test.javasrc/test/java/org/checkerframework/specimin/ImplicitEnumMethodsTest.javasrc/test/resources/implicitenummethods/expected/p/Outer.javasrc/test/resources/implicitenummethods/expected/p/RenderType.javasrc/test/resources/implicitenummethods/expected/p/UsesEnums.javasrc/test/resources/implicitenummethods/input/p/Outer.javasrc/test/resources/implicitenummethods/input/p/RenderType.javasrc/test/resources/implicitenummethods/input/p/UsesEnums.javasrc/test/resources/implicitenummethods2/expected/com/example/Unsolved.javasrc/test/resources/implicitenummethods2/expected/p/Outer.javasrc/test/resources/implicitenummethods2/expected/p/RenderType.javasrc/test/resources/implicitenummethods2/expected/p/UsesEnums.javasrc/test/resources/implicitenummethods2/input/p/Outer.javasrc/test/resources/implicitenummethods2/input/p/RenderType.javasrc/test/resources/implicitenummethods2/input/p/UsesEnums.java
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…518) This fixes one `ClassCastException` crash (the test case), which happens via the old logic around `UnsolvedSymbolGenerator`, line ~957. The other three changes are defensive (couldn't find a way to repro them today, but admittedly did not try that hard) with the same shape. The root cause for all of these is the same JavaParser bug(?) as in #516 and #517: when you call `toAst()` on something representing an enum's implicit method, you get the enum, not an AST node for the method (since no such AST node exists).
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Follow up to #516, so don't review until that PR is merged.
Only one call site needed to be changed, but I also removed or tightened the scope of some casts that would fail with an enum declaration's AST node. Overall, with this PR our handling of code that calls implicit enum methods is much improved.