Handle lambdas where the lambda-declarator is an explicit "(void)". PR13854.
llvm-svn: 164274
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 83dc86f..2dd5df1 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -5128,6 +5128,22 @@
}
}
+void Sema::checkVoidParamDecl(ParmVarDecl *Param) {
+ // In C++, the empty parameter-type-list must be spelled "void"; a
+ // typedef of void is not permitted.
+ if (getLangOpts().CPlusPlus &&
+ Param->getType().getUnqualifiedType() != Context.VoidTy) {
+ bool IsTypeAlias = false;
+ if (const TypedefType *TT = Param->getType()->getAs<TypedefType>())
+ IsTypeAlias = isa<TypeAliasDecl>(TT->getDecl());
+ else if (const TemplateSpecializationType *TST =
+ Param->getType()->getAs<TemplateSpecializationType>())
+ IsTypeAlias = TST->isTypeAlias();
+ Diag(Param->getLocation(), diag::err_param_typedef_of_void)
+ << IsTypeAlias;
+ }
+}
+
NamedDecl*
Sema::ActOnFunctionDeclarator(Scope *S, Declarator &D, DeclContext *DC,
TypeSourceInfo *TInfo, LookupResult &Previous,
@@ -5477,21 +5493,7 @@
FTI.ArgInfo[0].Param &&
cast<ParmVarDecl>(FTI.ArgInfo[0].Param)->getType()->isVoidType()) {
// Empty arg list, don't push any params.
- ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[0].Param);
-
- // In C++, the empty parameter-type-list must be spelled "void"; a
- // typedef of void is not permitted.
- if (getLangOpts().CPlusPlus &&
- Param->getType().getUnqualifiedType() != Context.VoidTy) {
- bool IsTypeAlias = false;
- if (const TypedefType *TT = Param->getType()->getAs<TypedefType>())
- IsTypeAlias = isa<TypeAliasDecl>(TT->getDecl());
- else if (const TemplateSpecializationType *TST =
- Param->getType()->getAs<TemplateSpecializationType>())
- IsTypeAlias = TST->isTypeAlias();
- Diag(Param->getLocation(), diag::err_param_typedef_of_void)
- << IsTypeAlias;
- }
+ checkVoidParamDecl(cast<ParmVarDecl>(FTI.ArgInfo[0].Param));
} else if (FTI.NumArgs > 0 && FTI.ArgInfo[0].Param != 0) {
for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) {
ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param);