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authorRichard Smith <richard-llvm@metafoo.co.uk>2013-02-07 03:30:24 +0000
committerRichard Smith <richard-llvm@metafoo.co.uk>2013-02-07 03:30:24 +0000
commit3646c68676c3c46a026b23d52188ef6e0d856178 (patch)
treee95e24d1132aca61782501a9c433cfbce948dc43 /lib/Serialization
parent878d0ad2c9d83ee6485fd16e21c5082acc63a890 (diff)
Simplify FindExternalVisibleDeclsByName by making it return a bool indicating
if it found any decls, rather than returning a list of found decls. This removes a returning-ArrayRef-to-deleted-storage bug from MultiplexExternalSemaSource (in code not exercised by any of the clang binaries), reduces the work required in the found-no-decls case with PCH, and importantly removes the need for DeclContext::lookup to be reentrant. No functionality change intended! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174576 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Serialization')
-rw-r--r--lib/Serialization/ASTReader.cpp7
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index aa4c448e98..1213084e36 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -5424,14 +5424,13 @@ static ModuleFile *getDefinitiveModuleFileFor(const DeclContext *DC,
return 0;
}
-DeclContext::lookup_result
+bool
ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
DeclarationName Name) {
assert(DC->hasExternalVisibleStorage() &&
"DeclContext has no visible decls in storage");
if (!Name)
- return DeclContext::lookup_result(DeclContext::lookup_iterator(0),
- DeclContext::lookup_iterator(0));
+ return false;
SmallVector<NamedDecl *, 64> Decls;
@@ -5464,7 +5463,7 @@ ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
}
++NumVisibleDeclContextsRead;
SetExternalVisibleDeclsForName(DC, Name, Decls);
- return const_cast<DeclContext*>(DC)->lookup(Name);
+ return !Decls.empty();
}
namespace {