+/* Test protocol warning. */
+/* Contributed by Devang Patel <dpatel@apple.com>. */
+/* { dg-do compile } */
+
+typedef struct objc_object { struct objc_class *class_pointer; } *id;
+
+@protocol Bar
+@end
+
+id <Bar> Foo_Bar () { }
+
+typedef struct
+{
+ int i;
+} MyStruct;
+
+@interface Foo
+{
+ id _mainData;
+ MyStruct *_anotherData;
+}
+
+-(id) mainDataSource;
+-(id) anotherDataSource;
+-(id) my_method: (int) i;
+@end
+
+@implementation Foo
+-(id) anotherDataSource
+{
+ return (id)_anotherData;
+}
+
+-(id) mainDataSource
+{
+ return _mainData;
+}
+
+-(id) my_method: (int) i
+{
+ id one = [self anotherDataSource];
+
+ i = i - 1;
+ // Do not issue warning about my_method not implemented by protocol
+ return [(one ? [self mainDataSource] : one) my_method:i];
+}
+
+@end
+