From 53395af128b8700b42c5d5c4267bf82e86c54530 Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Tue, 23 Feb 2010 18:50:01 +0000
Subject: [PATCH] A test case for property synthesis using ivar in class
 extensions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96968 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/SemaObjC/property-and-class-extension.m | 36 ++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 test/SemaObjC/property-and-class-extension.m

diff --git a/test/SemaObjC/property-and-class-extension.m b/test/SemaObjC/property-and-class-extension.m
new file mode 100644
index 0000000000..51bf8de77e
--- /dev/null
+++ b/test/SemaObjC/property-and-class-extension.m
@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 -fsyntax-only -fobjc-nonfragile-abi2 -verify %s
+
+/**
+When processing @synthesize, treat ivars in a class extension the same as ivars in the class @interface, 
+and treat ivars in a superclass extension the same as ivars in the superclass @interface.
+In particular, when searching for an ivar to back an @synthesize, do look at ivars in the class's own class 
+extension but ignore any ivars in superclass class extensions.
+*/
+
+@interface Super {
+  	int ISA;
+}
+@end
+
+@interface Super() {
+  int Property;		// expected-note {{previously declared 'Property' here}}
+}
+@end
+
+@interface SomeClass : Super {
+        int interfaceIvar1;
+        int interfaceIvar2;
+}
+@property int Property;
+@property int Property1;
+@end
+
+@interface SomeClass () {
+  int Property1;
+}
+@end
+
+@implementation SomeClass 
+@synthesize Property;	// expected-error {{property 'Property' attempting to use ivar 'Property' declared in super class 'Super'}}
+@synthesize Property1;	// OK
+@end
-- 
2.40.0