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authorDouglas Gregor <dgregor@apple.com>2012-01-01 19:51:50 +0000
committerDouglas Gregor <dgregor@apple.com>2012-01-01 19:51:50 +0000
commita715bfff98cbe13c31303c19829bc20226b38a1d (patch)
tree8cb54beae387712d5c1ed97464be27206bdbfc22 /clang/lib/AST/DeclObjC.cpp
parent1c064e0a896451b8083bf2b66c11d7222bc2f3e2 (diff)
downloadbcm5719-llvm-a715bfff98cbe13c31303c19829bc20226b38a1d.tar.gz
bcm5719-llvm-a715bfff98cbe13c31303c19829bc20226b38a1d.zip
Introduce the core infrastructure needed to model redeclaration chains
for Objective-C protocols, including: - Using the first declaration as the canonical declaration - Using the definition as the primary DeclContext - Making sure that all declarations have a pointer to the definition data, and that we know which declaration is the definition - Serialization support for redeclaration chains and for adding definitions to already-serialized declarations. However, note that we're not taking advantage of much of this code yet, because we're still re-using ObjCProtocolDecls. llvm-svn: 147410
Diffstat (limited to 'clang/lib/AST/DeclObjC.cpp')
-rw-r--r--clang/lib/AST/DeclObjC.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/clang/lib/AST/DeclObjC.cpp b/clang/lib/AST/DeclObjC.cpp
index f5828fcb4ce..341f0f5e937 100644
--- a/clang/lib/AST/DeclObjC.cpp
+++ b/clang/lib/AST/DeclObjC.cpp
@@ -1005,11 +1005,17 @@ ObjCMethodDecl *ObjCProtocolDecl::lookupMethod(Selector Sel,
void ObjCProtocolDecl::allocateDefinitionData() {
assert(!Data && "Protocol already has a definition!");
- Data = new (getASTContext()) DefinitionData;
+ Data = new (getASTContext()) DefinitionData;
+ Data->Definition = this;
}
void ObjCProtocolDecl::startDefinition() {
allocateDefinitionData();
+
+ // Update all of the declarations with a pointer to the definition.
+ for (redecl_iterator RD = redecls_begin(), RDEnd = redecls_end();
+ RD != RDEnd; ++RD)
+ RD->Data = this->Data;
}
void ObjCProtocolDecl::completedForwardDecl() {
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