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authorRichard Smith <richard-llvm@metafoo.co.uk>2015-09-15 01:28:55 +0000
committerRichard Smith <richard-llvm@metafoo.co.uk>2015-09-15 01:28:55 +0000
commit00bec9358b22fe245f5ffcd88a652715c1ebd9ce (patch)
tree59b6ee25065a2c4aad0c1d16ae0f08dcd69117df /include/clang/Sema/Lookup.h
parent0e7d51e97642e26cc852cca312acd3e1593a9989 (diff)
[modules] A using-declaration doesn't introduce a new entity, just a new name
for an existing entity, and as such a using-declaration doesn't need to conflict with a hidden entity (nor vice versa). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@247654 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Sema/Lookup.h')
-rw-r--r--include/clang/Sema/Lookup.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/clang/Sema/Lookup.h b/include/clang/Sema/Lookup.h
index bc8574c201..ed447ba149 100644
--- a/include/clang/Sema/Lookup.h
+++ b/include/clang/Sema/Lookup.h
@@ -237,6 +237,11 @@ public:
/// \brief Determine whether this lookup is permitted to see hidden
/// declarations, such as those in modules that have not yet been imported.
bool isHiddenDeclarationVisible(NamedDecl *ND) const {
+ // If a using-shadow declaration is hidden, it's never visible, not
+ // even to redeclaration lookup.
+ // FIXME: Should this apply to typedefs and namespace aliases too?
+ if (isa<UsingShadowDecl>(ND))
+ return false;
return (AllowHidden &&
(AllowHiddenInternal || ND->isExternallyVisible())) ||
LookupKind == Sema::LookupTagName;