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// RUN: %clang_cc1 -fsyntax-only -fblocks -verify -std=c++11 %s
// rdar://9293227
@class NSArray;
void f(NSArray *a) {
id keys;
for (int i : a); // expected-error{{selector element type 'int' is not a valid object}}
for ((id)2 : a); // expected-error {{for range declaration must declare a variable}} \
// expected-warning {{expression result unused}}
for (2 : a); // expected-error {{for range declaration must declare a variable}} \
// expected-warning {{expression result unused}}
for (id thisKey : keys);
for (auto thisKey : keys) { } // expected-warning{{'auto' deduced as 'id' in declaration of 'thisKey'}}
}
template<typename Collection>
void ft(Collection col) {
for (id x : col) { }
for (auto x : col) { }
}
template void ft(NSArray *);
/* // 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 = 0;
for (id thing : collection) { }
id array;
for (int (^b)(void) : array) {
if (b() == 10000) {
return 1;
}
}
return 0;
}
/* rdar://problem/11068137 */
@interface Test2
@property (assign) id prop;
@end
void test2(NSObject<NSFastEnumeration> *collection) {
Test2 *obj;
for (obj.prop : collection) { // expected-error {{for range declaration must declare a variable}} \
// expected-warning {{property access result unused - getters should not be used for side effects}}
}
}
void testErrors(NSArray *array) {
typedef int fn(int);
for (fn x in array) { } // expected-error{{non-variable declaration in 'for' loop}}
}
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