1 // RUN: %clang_cc1 -fsyntax-only -fblocks -verify -std=c++11 %s 2 // rdar://9293227 3 4 @class NSArray; 5 6 void f(NSArray *a) { 7 id keys; 8 for (int i : a); // expected-error{{selector element type 'int' is not a valid object}} 9 for ((id)2 : a); // expected-error {{for range declaration must declare a variable}} \ 10 // expected-warning {{expression result unused}} 11 for (2 : a); // expected-error {{for range declaration must declare a variable}} \ 12 // expected-warning {{expression result unused}} 13 14 for (id thisKey : keys); 15 16 for (auto thisKey : keys) { } // expected-warning{{'auto' deduced as 'id' in declaration of 'thisKey'}} 17 } 18 19 template<typename Collection> 20 void ft(Collection col) { 21 for (id x : col) { } 22 for (auto x : col) { } 23 } 24 25 template void ft(NSArray *); 26 27 /* // rdar://9072298 */ 28 @protocol NSObject @end 29 30 @interface NSObject <NSObject> { 31 Class isa; 32 } 33 @end 34 35 typedef struct { 36 unsigned long state; 37 id *itemsPtr; 38 unsigned long *mutationsPtr; 39 unsigned long extra[5]; 40 } NSFastEnumerationState; 41 42 @protocol NSFastEnumeration 43 44 - (unsigned long)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(unsigned long)len; 45 46 @end 47 48 int main () 49 { 50 NSObject<NSFastEnumeration>* collection = 0; 51 for (id thing : collection) { } 52 53 id array; 54 for (int (^b)(void) : array) { 55 if (b() == 10000) { 56 return 1; 57 } 58 } 59 return 0; 60 } 61 62 /* rdar://problem/11068137 */ 63 @interface Test2 64 @property (assign) id prop; 65 @end 66 void test2(NSObject<NSFastEnumeration> *collection) { 67 Test2 *obj; 68 for (obj.prop : collection) { // expected-error {{for range declaration must declare a variable}} \ 69 // expected-warning {{property access result unused - getters should not be used for side effects}} 70 } 71 } 72 73 void testErrors(NSArray *array) { 74 typedef int fn(int); 75 76 for (fn x in array) { } // expected-error{{non-variable declaration in 'for' loop}} 77 } 78
