Objective-C. This patch is to resolve the method used in method

expression to the best method found in global method pools. 
This is wip.  // rdar://16808765

llvm-svn: 215577

1 files changed, 17 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaDeclObjC.cpp b/clang/lib/Sema/SemaDeclObjC.cpp
index 469e45c7535..8e3e85ed281 100644
--- a/clang/lib/Sema/SemaDeclObjC.cpp
+++ b/clang/lib/Sema/SemaDeclObjC.cpp
@@ -2315,6 +2315,23 @@ static bool isAcceptableMethodMismatch(ObjCMethodDecl *chosen,
   return (chosen->getReturnType()->isIntegerType());
 }
 
+bool Sema::CollectMultipleMethodsInGlobalPool(Selector Sel,
+                                              SmallVectorImpl<ObjCMethodDecl*>& Methods,
+                                              bool instance) {
+  if (ExternalSource)
+    ReadMethodPool(Sel);
+
+  GlobalMethodPool::iterator Pos = MethodPool.find(Sel);
+  if (Pos == MethodPool.end())
+    return false;
+  // Gather the non-hidden methods.
+  ObjCMethodList &MethList = instance ? Pos->second.first : Pos->second.second;
+  for (ObjCMethodList *M = &MethList; M; M = M->getNext())
+    if (M->Method && !M->Method->isHidden())
+      Methods.push_back(M->Method);
+  return (Methods.size() > 1);
+}
+
 ObjCMethodDecl *Sema::LookupMethodInGlobalPool(Selector Sel, SourceRange R,
                                                bool receiverIdOrClass,
                                                bool warn, bool instance) {