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Preserve JavaScript semantics in Java static-analysis recipes - #1188
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CommonStaticAnalysis applies Java transformations that are unsafe for JavaScript/TypeScript. The wider repository runs exposed invalid switch templates and braces, lost boolean coercion and nullable fallbacks, public methods made protected, and removed bindings still captured by initializer closures.
Exclude JavaScript compilation units from MinimumSwitchCases, SimplifyBooleanReturn, SimplifyBooleanExpression, BooleanChecksNotInverted, InlineVariable, AbstractClassPublicConstructor and NeedBraces until their transformations support those semantics. Keep ordinary Java cleanup active, including files with search markers. Optional JavaScript detection uses the defining classloader, preventing a restricted thread context loader from permanently disabling the guard.
Observed examples include domain-locker (
?.allow || falseand a self-referencing backend closure), evs-explore (truthiness return), Ruff TSX (JavaTemplate error placeholders), tz-explorer (if (...) {call()}; else ...), and Spinnaker/systelab (public API methods becoming protected).Validation: new synthetic JavaScript and isolated-loader cases fail before the corrections. Node probes reproduce SyntaxError, ReferenceError and boolean-value changes from the old output. Focused ordinary Java and language-guard tests pass. Java-only runtime probes pass with both optional language jars absent. The complete 273-repository composite rerun is being repeated with the latest guards; no JavaScript/Python RPC snapshot is required by the synthetic tests.
Combined source verification (2026-11-03): CommonStaticAnalysis over 273 repositories completed 264 modeled repositories, with 9 lacking LSTs and zero recipe errors; 103 repositories have results, covering 14,366 changed files. The available upstream suite passed 2,697 tests (16 skipped; 34 known unavailable Python/JavaScript RPC cases excluded), the commercial suite passed 160, and the affected core suites passed 102. This validation includes the combined follow-up recipe and core fixes.