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/* Test for situations in which protocol conformance information
may be lost while casting. */
/* Author: Ziemowit Laski <zlaski@apple.com>. */
/* { dg-do compile } */
/* One-line substitute for objc/objc.h */
typedef struct objc_object { struct objc_class *class_pointer; } *id;
@protocol Proto
- (long)someValue;
@end
@interface Obj
- (long)anotherValue;
@end
long foo(void) {
long receiver = 2;
Obj *objrcvr;
Obj <Proto> *objrcvr2;
/* NB: Since 'receiver' is an invalid ObjC message receiver, the compiler
should warn but then search for methods as if we were messaging 'id'. */
receiver += [receiver someValue]; /* { dg-warning "invalid receiver type .long int." } */
receiver += [receiver anotherValue]; /* { dg-warning "invalid receiver type .long int." } */
receiver += [(Obj *)receiver someValue]; /* { dg-warning ".Obj. may not respond to .\\-someValue." } */
/* { dg-error "invalid conversion" "" { target *-*-* } 28 } */
receiver += [(Obj *)receiver anotherValue];
receiver += [(Obj <Proto> *)receiver someValue];
receiver += [(Obj <Proto> *)receiver anotherValue];
receiver += [objrcvr someValue]; /* { dg-warning ".Obj. may not respond to .\\-someValue." } */
/* { dg-error "invalid conversion" "" { target *-*-* } 34 } */
receiver += [objrcvr anotherValue];
receiver += [(Obj <Proto> *)objrcvr someValue];
receiver += [(Obj <Proto> *)objrcvr anotherValue];
receiver += [objrcvr2 someValue];
receiver += [objrcvr2 anotherValue];
receiver += [(Obj *)objrcvr2 someValue]; /* { dg-warning ".Obj. may not respond to .\\-someValue." } */
/* { dg-error "invalid conversion" "" { target *-*-* } 42 } */
receiver += [(Obj *)objrcvr2 anotherValue];
return receiver;
}
/* { dg-warning "Messages without a matching method signature" "" { target *-*-* } 0 } */
/* { dg-warning "will be assumed to return .id. and accept" "" { target *-*-* } 0 } */
/* { dg-warning ".\.\.\.. as arguments" "" { target *-*-* } 0 } */
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