From: Adrian Prantl <aprantl@apple.com>
Date: Fri, 17 May 2013 23:49:10 +0000 (+0000)
Subject: ObjC Debug Info: Emit the correct method names for accessors for
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=687ecae11966c3cf098dda03d229770b14de53ed;p=clang

ObjC Debug Info: Emit the correct method names for accessors for
properties declared in a protocol.

rdar://problem/13798000

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@182176 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 14c92e6669..a0187186ff 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -161,6 +161,13 @@ StringRef CGDebugInfo::getObjCMethodName(const ObjCMethodDecl *OMD) {
              dyn_cast<const ObjCCategoryImplDecl>(DC)){
       OS << ((const NamedDecl *)OCD)->getIdentifier()->getNameStart() << '(' <<
           OCD->getIdentifier()->getNameStart() << ')';
+  } else if (isa<const ObjCProtocolDecl>(DC)) {
+    // We can extract the type of the class from the self pointer.
+    if (ImplicitParamDecl* SelfDecl = OMD->getSelfDecl()) {
+      QualType ClassTy =
+        cast<ObjCObjectPointerType>(SelfDecl->getType())->getPointeeType();
+      ClassTy.print(OS, PrintingPolicy(LangOptions()));
+    }
   }
   OS << ' ' << OMD->getSelector().getAsString() << ']';
 
diff --git a/test/CodeGenObjC/debuginfo-properties.m b/test/CodeGenObjC/debuginfo-properties.m
new file mode 100644
index 0000000000..9a35714583
--- /dev/null
+++ b/test/CodeGenObjC/debuginfo-properties.m
@@ -0,0 +1,35 @@
+// RUN: %clang_cc1 -g -emit-llvm -triple x86_64-apple-darwin -o - %s | FileCheck %s
+// Check that we emit the correct method names for properties from a protocol.
+// rdar://problem/13798000
+@protocol NSObject
+- (id)init;
+@end
+@interface NSObject <NSObject> {}
+@end
+
+@class Selection;
+
+@protocol HasASelection <NSObject>
+@property (nonatomic, retain) Selection* selection;
+// CHECK: [ DW_TAG_subprogram ] [line [[@LINE-1]]] [local] [def] [-[MyClass selection]]
+// CHECK: [ DW_TAG_subprogram ] [line [[@LINE-2]]] [local] [def] [-[MyClass setSelection:]]
+// CHECK: [ DW_TAG_subprogram ] [line [[@LINE-3]]] [local] [def] [-[OtherClass selection]]
+// CHECK: [ DW_TAG_subprogram ] [line [[@LINE-4]]] [local] [def] [-[OtherClass setSelection:]]
+@end
+
+@interface MyClass : NSObject <HasASelection> {
+  Selection *_selection;
+}
+@end
+
+@implementation MyClass
+@synthesize selection = _selection;
+@end
+
+@interface OtherClass : NSObject <HasASelection> {
+  Selection *_selection;
+}
+@end
+@implementation OtherClass
+@synthesize selection = _selection;
+@end