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[PR #6877] [CLOSED] fix(managed): derive P/Invoke suffix candidates for default and Auto charsets #7429
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opened 2026-11-01 21:47:48 +00:00 by bsakaguchi
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📋 Pull Request Information
Original PR: https://github.com/morluto/rea/pull/6877
Author: @AmmarJamil23
Created: 10/23/2026
Status: ❌ Closed
Base:
main← Head:fix/pinvoke-charset-candidates📝 Commits (1)
3d1a2cdfix(managed): derive P/Invoke suffix candidates for default and Auto charsets📊 Changes
3 files changed (+85 additions, -6 deletions)
View changed files
📝
docs/managed-code-analysis.md(+8 -0)📝
src/domain/managed/managedNativeVerificationMatch.ts(+22 -4)📝
tests/conformance/providers/managed/managedNativeVerification.test.ts(+55 -2)📄 Description
Summary
Fixes #6857.
verify-managed-native-boundariesadded theA/Wentry-point suffix candidate only for an explicitansiorunicodecharset. A default (not-specified) P/Invoke declaration behaves as ANSI, andAutomeans Unicode on Windows, so their conventional decorated exports (ExampleA,ExampleW) were dropped and verification reportedunresolved / no-native-candidate. They are now retained asinferred / decorated-name-candidate, the same as the explicit-charset controls.Problem and expected behavior
Smallest trigger: a P/Invoke
Exampleinexample.dllwith mapping flags0x0200(charset unspecified, ExactSpelling false) and supplied PE function Evidence namedExampleA. Before:unresolved,no-native-candidate, no candidates; explicit ANSI (0x0202) returnedinferredwithExampleA. Same pattern forAuto(0x0206) withExampleWversus explicit Unicode.Expected (per the issue and Microsoft's Charsets and marshalling / Specifying a character set): the default charset probes the
Aname,AutoprobesWon Windows, and ExactSpelling suppresses suffixes. This stays a static candidate inference, not proof of binding.Change and scope
The charset parser already preserved
not-specifiedandautocorrectly; the gap was in candidate enumeration (candidateNamesinsrc/domain/managed/managedNativeVerificationMatch.ts). It now resolves an effective charset per native module:not-specified→ ANSI (addsA) for every module format;auto→ Unicode (addsW) when the supplied native Evidence's module format ispe, andunknown(no suffix candidate) for other formats, becauseAutomeans UTF-8 off Windows and the supplied Evidence does not establish suffix probing there;ansi/unicodeand ExactSpelling (no_mangle) behave exactly as before.Candidates are computed per native symbol, since only the symbol's Evidence knows its module format; the existing
moduleFormatsByEvidenceIdmap already carried that fact.docs/managed-code-analysis.mdnow states the entry-point rule next to the existing module-name rules.Not changed: stdcall
_Name@Ndecorations, module matching, and verification status semantics.Contribution scope: ordinary correctness fix within the existing static-verification boundary; no scope decision needed.
Contract and boundary impact
managedNativeVerificationMatch.ts.inferred / decorated-name-candidatestate.Autosuffix applies only to PE modules; ELF, Mach-O and unknown formats get noAutosuffix candidate.npm run docs:checkpassed with no generated changes.Evidence and regression coverage
tests/conformance/providers/managed/managedNativeVerification.test.ts, with 10 table cases covering default/ANSI/Unicode/Auto on PE and ELF, wrong-suffix controls, and ExactSpelling suppression. ThenativeFunctionEvidencehelper takes a function name, andinputWithImportScopetakes a charset/ExactSpelling override.src/change stashed, exactly the 3 bug cases fail (default→Aon PE, default→Aon ELF, Auto→Won PE); the 7 controls pass on both revisions.verify-managed-native-boundariesscript (adapted for a Windows host), run with the fix:default-ansi-suffixandauto-unicode-suffixnow returninferred / decorated-name-candidatewithExampleA/ExampleW; explicit controls unchanged;auto-exact-controlstaysverified / exact-function-name;exactspelling-controlstaysunresolved / no-native-candidate.DllImportprobes on Windows 11 x64 (.NET Framework 4.8 via PowerShellAdd-Type) against system DLLs:shell32!CommandLineToArgv, which is exported only asCommandLineToArgvW:AutoandUnicodebind; default,Ansi, andAuto+ ExactSpelling throwEntryPointNotFoundException.kernel32!GetModuleHandle, which is exported only asGetModuleHandleA/GetModuleHandleW: the default charset binds (so it resolvesGetModuleHandleA, since the default never probedWabove); default + ExactSpelling throwsEntryPointNotFoundException.Autobehavior is deliberately left unknown rather than asserted.Validation performed
Windows 11 x64, Node.js 24.22.1 (pinned), locked dependencies.
npm run test:focused -- tests/conformance/providers/managed/managedNativeVerification.test.ts— 30/30 passed; withsrc/stashed, 3 failed / 27 passed (the three bug cases).npm run test:focused -- tests/boundary/mcp/managedNativeVerificationAdapters.test.ts tests/boundary/mcp/outputSchemaSemanticConstraints.test.ts— 4/4 passed.npm run build:cachedthen the issue's CLI reproduction — results above.npm run check:fast— passed.npm run docs:check— passed; no generated changes.Compatibility, safety, and release
unresolved / no-native-candidatenow reportinferred / decorated-name-candidate.Author readiness
Human owner: @AmmarJamil23
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type(scope): outcome.🤖 Generated with Claude Code
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.