+2011-01-02 Nicola Pero <nicola.pero@meta-innovation.com>
+
+ * objc-act.c (check_that_protocol_is_defined): New.
+ (lookup_protocol): Call check_that_protocol_is_defined.
+
2010-12-30 Nicola Pero <nicola.pero@meta-innovation.com>
* objc-act.c (objc_types_are_equivalent): Fixed comparing protocol
return protocol_chain;
}
+/* Check that a protocol is defined, and, recursively, that all
+ protocols that this protocol conforms to are defined too. */
+static void
+check_that_protocol_is_defined (tree protocol)
+{
+ if (!PROTOCOL_DEFINED (protocol))
+ warning (0, "definition of protocol %qE not found",
+ PROTOCOL_NAME (protocol));
+
+ /* If the protocol itself conforms to other protocols, check them
+ too, recursively. */
+ if (PROTOCOL_LIST (protocol))
+ {
+ tree p;
+
+ for (p = PROTOCOL_LIST (p); p; p = TREE_CHAIN (p))
+ check_that_protocol_is_defined (TREE_VALUE (p));
+ }
+}
+
/* Looks up a protocol. If 'warn_if_deprecated' is true, a warning is
emitted if the protocol is deprecated. If 'definition_required' is
true, a warning is emitted if a full @protocol definition has not
been seen. */
-
static tree
lookup_protocol (tree ident, bool warn_if_deprecated, bool definition_required)
{
PROTOCOL_NAME (chain));
}
- if (definition_required && !PROTOCOL_DEFINED (chain))
- warning (0, "definition of protocol %qE not found",
- PROTOCOL_NAME (chain));
+ if (definition_required)
+ check_that_protocol_is_defined (chain);
return chain;
}
+2011-01-02 Nicola Pero <nicola.pero@meta-innovation.com>
+
+ * objc.dg/protocol-forward-1.m: Removed TODO.
+ * objc.dg/protocol-forward-2.m: New.
+ * obj-c++.dg/protocol-forward-2.mm: Removed TODO.
+ * obj-c++.dg/protocol-forward-2.mm: New.
+
2011-01-01 Kai Tietz <kai.tietz@onevision.com>
PR target/38662
@protocol MyProtocol3 <MyProtocol> /* Ok */
@end
-/* TODO: I guess if MyProtocol3 is now used in an @interface, we
- should check that all the protocols it references are defined
- too ? */
--- /dev/null
+/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, December 2010. */
+/* { dg-do compile } */
+
+/* Test that all protocols appearing in @interface declarations are
+ real (ie, we saw a full @protocol definition with list of methods),
+ and not just forward-references (ie, "@protocol NSObject;"). This
+ test checks protocols implemented by other protocols. */
+
+#include <objc/objc.h>
+
+@protocol MyProtocol;
+
+@interface MyClass <MyProtocol> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+@end
+
+
+@protocol MyProtocol2 <MyProtocol>
+- (int)method2;
+@end
+
+@interface MyClass2 <MyProtocol2> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+@end
+
+
+@protocol MyProtocol3 <MyProtocol2>
+- (int)method3;
+@end
+
+@interface MyClass3 <MyProtocol3> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+- (int)method3;
+@end
+
+
+@protocol MyProtocol4 <MyProtocol3, MyProtocol2>
+- (int)method4;
+@end
+
+@interface MyClass4 <MyProtocol4> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+- (int)method3;
+- (int)method4;
+@end
+
+
+@protocol MyProtocol5
+- (int)method5;
+@end
+
+@interface MyClass5 <MyProtocol5> /* Ok */
+- (int)method5;
+@end
+
+
+@protocol MyProtocol6 <MyProtocol5>
+- (int)method6;
+@end
+
+@interface MyClass6 <MyProtocol6> /* Ok */
+- (int)method5;
+- (int)method6;
+@end
+
+
+@protocol MyProtocol7 <MyProtocol5, MyProtocol4>
+- (int)method7;
+@end
+
+@interface MyClass7 <MyProtocol7> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+- (int)method3;
+- (int)method4;
+- (int)method5;
+- (int)method7;
+@end
+
+
+/* Now test that if we finally define MyProtocol, the warnings go away. */
+@protocol MyProtocol
+- (int)method;
+@end
+
+@protocol MyProtocol8 <MyProtocol5, MyProtocol4>
+- (int)method8;
+@end
+
+@interface MyClass8 <MyProtocol8> /* Ok */
+- (int)method;
+- (int)method2;
+- (int)method3;
+- (int)method4;
+- (int)method5;
+- (int)method8;
+@end
@protocol MyProtocol3 <MyProtocol> /* Ok */
@end
-
-/* TODO: I guess if MyProtocol3 is now used in an @interface, we
- should check that all the protocols it references are defined
- too ? */
--- /dev/null
+/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, December 2010. */
+/* { dg-do compile } */
+
+/* Test that all protocols appearing in @interface declarations are
+ real (ie, we saw a full @protocol definition with list of methods),
+ and not just forward-references (ie, "@protocol NSObject;"). This
+ test checks protocols implemented by other protocols. */
+
+#include <objc/objc.h>
+
+@protocol MyProtocol;
+
+@interface MyClass <MyProtocol> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+@end
+
+
+@protocol MyProtocol2 <MyProtocol>
+- (int)method2;
+@end
+
+@interface MyClass2 <MyProtocol2> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+@end
+
+
+@protocol MyProtocol3 <MyProtocol2>
+- (int)method3;
+@end
+
+@interface MyClass3 <MyProtocol3> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+- (int)method3;
+@end
+
+
+@protocol MyProtocol4 <MyProtocol3, MyProtocol2>
+- (int)method4;
+@end
+
+@interface MyClass4 <MyProtocol4> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+- (int)method3;
+- (int)method4;
+@end
+
+
+@protocol MyProtocol5
+- (int)method5;
+@end
+
+@interface MyClass5 <MyProtocol5> /* Ok */
+- (int)method5;
+@end
+
+
+@protocol MyProtocol6 <MyProtocol5>
+- (int)method6;
+@end
+
+@interface MyClass6 <MyProtocol6> /* Ok */
+- (int)method5;
+- (int)method6;
+@end
+
+
+@protocol MyProtocol7 <MyProtocol5, MyProtocol4>
+- (int)method7;
+@end
+
+@interface MyClass7 <MyProtocol7> /* { dg-warning "definition of protocol .MyProtocol. not found" } */
+- (int)method2;
+- (int)method3;
+- (int)method4;
+- (int)method5;
+- (int)method7;
+@end
+
+
+/* Now test that if we finally define MyProtocol, the warnings go away. */
+@protocol MyProtocol
+- (int)method;
+@end
+
+@protocol MyProtocol8 <MyProtocol5, MyProtocol4>
+- (int)method8;
+@end
+
+@interface MyClass8 <MyProtocol8> /* Ok */
+- (int)method;
+- (int)method2;
+- (int)method3;
+- (int)method4;
+- (int)method5;
+- (int)method8;
+@end