Patch to diagnose a variety of misuse of property
attributes. Example would be, readonly, assign or
assign, copy, etc.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60620 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/property-12.m b/test/SemaObjC/property-12.m
new file mode 100644
index 0000000..bdd026d
--- /dev/null
+++ b/test/SemaObjC/property-12.m
@@ -0,0 +1,32 @@
+// RUN: clang -fsyntax-only -verify %s
+
+@protocol P0
+@property(readonly,assign) id X; // expected-error {{property attributes 'readonly' and 'assign' are mutually exclusive}}
+@end
+
+@protocol P1
+@property(readonly,retain) id X; // expected-error {{property attributes 'readonly' and 'retain' are mutually exclusive}}
+@end
+
+@protocol P2
+@property(readonly,copy) id X; // expected-error {{property attributes 'readonly' and 'copy' are mutually exclusive}}
+@end
+
+@protocol P3
+@property(readonly,readwrite) id X; // expected-error {{property attributes 'readonly' and 'readwrite' are mutually exclusive}}
+@end
+
+@protocol P4
+@property(assign,copy) id X; // expected-error {{property attributes 'assign' and 'copy' are mutually exclusive}}
+@end
+
+@protocol P5
+@property(assign,retain) id X; // expected-error {{property attributes 'assign' and 'retain' are mutually exclusive}}
+@end
+
+@protocol P6
+@property(copy,retain) id X; // expected-error {{property attributes 'copy' and 'retain' are mutually exclusive}}
+@end
+
+
+