From 33fa96244135d64e13d964401f3089c251a4aa0b Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Tue, 28 Jan 2014 20:41:15 +0000
Subject: Objective-C. provide legacy encoding of *id and *Class types instead
 of crashing.  // rdar://15824769.

llvm-svn: 200338
---
 clang/lib/AST/ASTContext.cpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'clang/lib/AST/ASTContext.cpp')

diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index ad3bf5105dd..9ee624c98b3 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -5440,7 +5440,19 @@ void ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S,
     return;
   }
 
-  case Type::ObjCObject:
+  case Type::ObjCObject: {
+    // hack to match legacy encoding of *id and *Class
+    QualType Ty = getObjCObjectPointerType(CT);
+    if (Ty->isObjCIdType()) {
+      S += "{objc_object=}";
+      return;
+    }
+    else if (Ty->isObjCClassType()) {
+      S += "{objc_class=}";
+      return;
+    }
+  }
+  
   case Type::ObjCInterface: {
     // Ignore protocol qualifiers when mangling at this level.
     T = T->castAs<ObjCObjectType>()->getBaseType();
-- 
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