1 files changed, 27 insertions, 0 deletions
diff --git a/clang/lib/Basic/IdentifierTable.cpp b/clang/lib/Basic/IdentifierTable.cpp
index 01f60a9d695..a81369ad27f 100644
--- a/clang/lib/Basic/IdentifierTable.cpp
+++ b/clang/lib/Basic/IdentifierTable.cpp
@@ -487,6 +487,33 @@ ObjCInstanceTypeFamily Selector::getInstTypeMethodFamily(Selector sel) {
   return OIT_None;
 }
 
+ObjCStringFormatFamily Selector::getStringFormatFamilyImpl(Selector sel) {
+  IdentifierInfo *first = sel.getIdentifierInfoForSlot(0);
+  if (!first) return SFF_None;
+  
+  StringRef name = first->getName();
+  
+  switch (name.front()) {
+    case 'a':
+      if (name == "appendFormat") return SFF_NSString;
+      break;
+      
+    case 'i':
+      if (name == "initWithFormat") return SFF_NSString;
+      break;
+      
+    case 'l':
+      if (name == "localizedStringWithFormat") return SFF_NSString;
+      break;
+      
+    case 's':
+      if (name == "stringByAppendingFormat" ||
+          name == "stringWithFormat") return SFF_NSString;
+      break;
+  }
+  return SFF_None;
+}
+
 namespace {
   struct SelectorTableImpl {
     llvm::FoldingSet<MultiKeywordSelector> Table;