When we're performing name lookup for a tag, we still allow ourselves

to see hidden declarations because every tag lookup is effectively a
redeclaration lookup. For example, image that

  struct foo;

is declared in a submodule that is known but hasn't been imported. If
someone later writes

  struct foo *foo_p;

then "struct foo" is either a reference or a redeclaration. To keep
the redeclaration chains sound, we treat it like a redeclaration for
name-lookup purposes.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147588 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index ae950ff27a..7ee50e3a4c 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -1171,7 +1171,7 @@ bool Sema::LookupName(LookupResult &R, Scope *S, bool AllowBuiltinCreation) {
         
         // If this declaration is module-private and it came from an AST
         // file, we can't see it.
-        NamedDecl *D = R.isForRedeclaration()? *I : getVisibleDecl(*I);
+        NamedDecl *D = R.isHiddenDeclarationVisible()? *I : getVisibleDecl(*I);
         if (!D)
           continue;
                 
@@ -1194,7 +1194,7 @@ bool Sema::LookupName(LookupResult &R, Scope *S, bool AllowBuiltinCreation) {
             if (!LastDC->isFileContext() && !S->isDeclScope(*LastI))
               break;
             
-            D = R.isForRedeclaration()? *LastI : getVisibleDecl(*LastI);
+            D = R.isHiddenDeclarationVisible()? *LastI : getVisibleDecl(*LastI);
             if (D)
               R.addDecl(D);
           }