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[Clang][Sema] Check the return value of DiagnoseClassNameShadow in ActOnEnumConstant #143754

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Merged
merged 4 commits into from
Aug 16, 2025
Merged

[Clang][Sema] Check the return value of DiagnoseClassNameShadow in ActOnEnumConstant #143754

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41e1b10
[Clang][Sema] Check the return value of DiagnoseClassNameShadow in Ac…
shafik Jun 11, 2025
66990b5
Adding test to confirm we don't create enumerator that shadows.
shafik Aug 15, 2025
c4738fc
Merge remote-tracking branch 'origin/main' into ActOnEnumConstantChec…
shafik Aug 15, 2025
5d88b17
Update test after merging w/ main.
shafik Aug 16, 2025
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7 changes: 4 additions & 3 deletions clang/lib/Sema/SemaDecl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -20134,9 +20134,10 @@ Decl *Sema::ActOnEnumConstant(Scope *S, Decl *theEnumDecl, Decl *lastEnumConst,
// different from T:
// - every enumerator of every member of class T that is an unscoped
// enumerated type
if (getLangOpts().CPlusPlus && !TheEnumDecl->isScoped())
DiagnoseClassNameShadow(TheEnumDecl->getDeclContext(),
DeclarationNameInfo(Id, IdLoc));
if (getLangOpts().CPlusPlus && !TheEnumDecl->isScoped() &&
DiagnoseClassNameShadow(TheEnumDecl->getDeclContext(),
DeclarationNameInfo(Id, IdLoc)))
return nullptr;

EnumConstantDecl *New =
CheckEnumConstant(TheEnumDecl, LastEnumConst, IdLoc, Id, Val);
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