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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [objc.dg/] [proto-lossage-4.m] - Rev 309
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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-warning "assignment makes integer from pointer without a cast" "" { 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-warning "assignment makes integer from pointer without a cast" "" { 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-warning "assignment makes integer from pointer without a cast" "" { 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 } */