Skip to content

[clang] fix runtime check listing types which can appear in a NestedNameSpecifier #155272

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Aug 25, 2025
Merged

[clang] fix runtime check listing types which can appear in a NestedNameSpecifier #155272

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 3 additions & 14 deletions clang/lib/Sema/TreeTransform.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5539,21 +5539,10 @@ QualType TreeTransform<Derived>::TransformTypeInObjectScope(
TLB, TL.castAs<DependentNameTypeLoc>(), /*DeducedTSTContext=*/false,
ObjectType, UnqualLookup);
}
case TypeLoc::Typedef:
case TypeLoc::TemplateSpecialization:
case TypeLoc::SubstTemplateTypeParm:
case TypeLoc::SubstTemplateTypeParmPack:
case TypeLoc::PackIndexing:
case TypeLoc::Enum:
case TypeLoc::Record:
case TypeLoc::InjectedClassName:
case TypeLoc::TemplateTypeParm:
case TypeLoc::Decltype:
case TypeLoc::UnresolvedUsing:
case TypeLoc::Using:
return getDerived().TransformType(TLB, TL);
default:
llvm_unreachable("unexpected type class");
// Any dependent canonical type can appear here, through type alias
// templates.
return getDerived().TransformType(TLB, TL);
}
}

Expand Down
21 changes: 13 additions & 8 deletions clang/test/SemaTemplate/nested-name-spec-template.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
// RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-c++20-extensions
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-c++11-extensions -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s

namespace N {
Expand All @@ -24,14 +24,7 @@ namespace N {

M::Promote<int>::type *ret_intptr3(int* ip) { return ip; }
M::template Promote<int>::type *ret_intptr4(int* ip) { return ip; }
#if __cplusplus <= 199711L
// expected-warning@-2 {{'template' keyword outside of a template}}
#endif

M::template Promote<int> pi;
#if __cplusplus <= 199711L
// expected-warning@-2 {{'template' keyword outside of a template}}
#endif
}

N::M::Promote<int>::type *ret_intptr5(int* ip) { return ip; }
Expand Down Expand Up @@ -181,3 +174,15 @@ namespace SubstTemplateTypeParmPackType {
template void f<B>();
} // namespace SubstTemplateTypeParmPackType
#endif

namespace DependentUnaryTransform {
template <class T> using decay_t = __decay(T);
template <class, class> struct A;
template <class T> struct A<T, typename decay_t<T>::X>;
} // namespace DependentUnaryTransform

namespace DependentSizedArray {
template <int V> using Z = int[V];
template <class, class> struct A;
template <class T> struct A<T, typename Z<T(0)>::X>;
} // namespace DependentUnaryTransform
Loading