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-rw-r--r--lib/Sema/SemaDeclObjC.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Sema/SemaDeclObjC.cpp b/lib/Sema/SemaDeclObjC.cpp
index 64b000ee9a..d22d7a14f6 100644
--- a/lib/Sema/SemaDeclObjC.cpp
+++ b/lib/Sema/SemaDeclObjC.cpp
@@ -1593,6 +1593,11 @@ void Sema::CheckProtocolMethodDefs(SourceLocation ImpLoc,
NSIDecl = IDecl->lookupInheritedClass(&Context.Idents.get("NSProxy"));
}
+ // If this is a forward protocol declaration, get its definition.
+ if (!PDecl->isThisDeclarationADefinition() &&
+ PDecl->getDefinition())
+ PDecl = PDecl->getDefinition();
+
// If a method lookup fails locally we still need to look and see if
// the method was implemented by a base class or an inherited
// protocol. This lookup is slow, but occurs rarely in correct code