Move the data that corresponds to the definition of a protocol into a

separately-allocated DefinitionData structure. Introduce various
functions that will help with the separation of declarations from
definitions (isThisDeclarationADefinition(), hasDefinition(),
getDefinition()).

llvm-svn: 147408

3 files changed, 11 insertions, 6 deletions

diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 33feadfdf1b..f2e6b01329a 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -4126,8 +4126,8 @@ CXCursor clang_getCursorDefinition(CXCursor C) {
     return clang_getNullCursor();
 
   case Decl::ObjCProtocol:
-    if (!cast<ObjCProtocolDecl>(D)->isForwardDecl())
-      return C;
+    if (ObjCProtocolDecl *Def = cast<ObjCProtocolDecl>(D)->getDefinition())
+      return MakeCXCursor(Def, TU);
     return clang_getNullCursor();
 
   case Decl::ObjCInterface: {
diff --git a/clang/tools/libclang/IndexDecl.cpp b/clang/tools/libclang/IndexDecl.cpp
index 38868138cf2..ee37bba9426 100644
--- a/clang/tools/libclang/IndexDecl.cpp
+++ b/clang/tools/libclang/IndexDecl.cpp
@@ -102,7 +102,7 @@ public:
 
   bool VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
     // Forward decls are handled at VisitObjCForwardProtocolDecl.
-    if (D->isForwardDecl())
+    if (!D->isThisDeclarationADefinition())
       return true;
 
     IndexCtx.handleObjCProtocol(D);
diff --git a/clang/tools/libclang/IndexingContext.cpp b/clang/tools/libclang/IndexingContext.cpp
index 49dfa05cf1c..28efe3fd569 100644
--- a/clang/tools/libclang/IndexingContext.cpp
+++ b/clang/tools/libclang/IndexingContext.cpp
@@ -368,8 +368,9 @@ bool IndexingContext::handleObjCInterface(const ObjCInterfaceDecl *D) {
   }
   
   ObjCProtocolList EmptyProtoList;
-  ObjCProtocolListInfo ProtInfo(D->hasDefinition() ? D->getReferencedProtocols()
-                                                   : EmptyProtoList, 
+  ObjCProtocolListInfo ProtInfo(D->isThisDeclarationADefinition() 
+                                  ? D->getReferencedProtocols()
+                                  : EmptyProtoList, 
                                 *this, SA);
   
   ObjCInterfaceDeclInfo InterInfo(D);
@@ -401,7 +402,11 @@ bool IndexingContext::handleObjCForwardProtocol(const ObjCProtocolDecl *D,
 
 bool IndexingContext::handleObjCProtocol(const ObjCProtocolDecl *D) {
   ScratchAlloc SA(*this);
-  ObjCProtocolListInfo ProtListInfo(D->getReferencedProtocols(), *this, SA);
+  ObjCProtocolList EmptyProtoList;
+  ObjCProtocolListInfo ProtListInfo(D->isThisDeclarationADefinition()
+                                      ? D->getReferencedProtocols()
+                                      : EmptyProtoList,
+                                    *this, SA);
   
   ObjCProtocolDeclInfo ProtInfo(D);
   ProtInfo.ObjCProtoRefListInfo = ProtListInfo.getListInfo();