forked from OSchip/llvm-project
82 lines
2.2 KiB
Objective-C
82 lines
2.2 KiB
Objective-C
/* RUN: %clang_cc1 -Wall -fsyntax-only -verify -std=c89 -pedantic %s
|
|
*/
|
|
|
|
@class NSArray;
|
|
|
|
void f(NSArray *a) {
|
|
id keys;
|
|
for (int i in a); /* expected-error{{selector element type 'int' is not a valid object}} */
|
|
for ((id)2 in a); /* expected-error{{selector element is not a valid lvalue}} */
|
|
for (2 in a); /* expected-error{{selector element is not a valid lvalue}} */
|
|
|
|
/* This should be ok, 'thisKey' should be scoped to the loop in question,
|
|
* and no diagnostics even in pedantic mode should happen.
|
|
* rdar://6814674
|
|
*/
|
|
for (id thisKey in keys); /* expected-warning {{unused variable 'thisKey'}} */
|
|
for (id thisKey in keys); /* expected-warning {{unused variable 'thisKey'}} */
|
|
}
|
|
|
|
/* // rdar://9072298 */
|
|
@protocol NSObject @end
|
|
|
|
@interface NSObject <NSObject> {
|
|
Class isa;
|
|
}
|
|
@end
|
|
|
|
typedef struct {
|
|
unsigned long state;
|
|
id *itemsPtr;
|
|
unsigned long *mutationsPtr;
|
|
unsigned long extra[5];
|
|
} NSFastEnumerationState;
|
|
|
|
@protocol NSFastEnumeration
|
|
|
|
- (unsigned long)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(unsigned long)len;
|
|
|
|
@end
|
|
|
|
int main ()
|
|
{
|
|
NSObject<NSFastEnumeration>* collection = ((void*)0);
|
|
for (id thing in collection) { } /* expected-warning {{unused variable 'thing'}} */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* rdar://problem/11068137 */
|
|
@interface Test2
|
|
@property (assign) id prop;
|
|
@end
|
|
void test2(NSObject<NSFastEnumeration> *collection) {
|
|
Test2 *obj;
|
|
for (obj.prop in collection) { /* expected-error {{selector element is not a valid lvalue}} */
|
|
}
|
|
}
|
|
|
|
int cond();
|
|
|
|
void test3(NSObject<NSFastEnumeration> *a0, NSObject<NSFastEnumeration> *a1) {
|
|
for (id i in a0) { /* expected-note 2 {{jump enters Objective-C fast enumeration loop}} */
|
|
for (id j in a1) { /* expected-note 2 {{jump enters Objective-C fast enumeration loop}} */
|
|
(void)i, (void)j;
|
|
label0:
|
|
if (cond())
|
|
goto label1;
|
|
}
|
|
label1:
|
|
if (cond())
|
|
goto label0; /* expected-error {{cannot jump from this goto statement to its label}} */
|
|
if (cond())
|
|
goto label2;
|
|
}
|
|
|
|
label2:
|
|
if (cond())
|
|
goto label0; /* expected-error {{cannot jump from this goto statement to its label}} */
|
|
if (cond())
|
|
goto label1; /* expected-error{{cannot jump from this goto statement to its label}} */
|
|
}
|