Allow __attribute__((unused)) to be applied to ObjC ivars.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97103 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index 8a8ad28..242d66f 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -521,7 +521,7 @@
return;
}
- if (!isa<VarDecl>(d) && !isFunctionOrMethod(d)) {
+ if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d)) {
S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type)
<< Attr.getName() << 2 /*variable and function*/;
return;
diff --git a/test/SemaObjC/unused.m b/test/SemaObjC/unused.m
index 7fdb801..e994188 100644
--- a/test/SemaObjC/unused.m
+++ b/test/SemaObjC/unused.m
@@ -7,19 +7,14 @@
@end
@implementation Greeter
-+ (void) hello {
- printf("Hello, World!\n");
-}
++ (void) hello { printf("Hello, World!\n"); }
@end
-
int test1(void) {
[Greeter hello];
return 0;
}
-
-
@interface NSObject @end
@interface NSString : NSObject
- (int)length;
@@ -29,10 +24,6 @@
@"pointless example call for test purposes".length; // expected-warning {{property access result unused - getters should not have side effects}}
}
-
-
-
-
@interface foo
- (int)meth: (int)x: (int)y: (int)z ;
@end
@@ -42,3 +33,13 @@
(int)y: // expected-warning{{unused}}
(int) __attribute__((unused))z { return x; }
@end
+
+//===------------------------------------------------------------------------===
+// The next test shows how clang accepted attribute((unused)) on ObjC
+// instance variables, which GCC does not.
+//===------------------------------------------------------------------------===
+
+@interface TestUnusedIvar {
+ id x __attribute__((unused)); // no-warning
+}
+@end