1 // RUN: %clang_cc1 -emit-llvm %s -o %t 2 3 void p(const char*, ...); 4 5 @interface NSArray 6 +(NSArray*) arrayWithObjects: (id) first, ...; 7 -(unsigned) count; 8 @end 9 @interface NSString 10 -(const char*) cString; 11 @end 12 13 #define S(n) @#n 14 #define L1(n) S(n+0),S(n+1) 15 #define L2(n) L1(n+0),L1(n+2) 16 #define L3(n) L2(n+0),L2(n+4) 17 #define L4(n) L3(n+0),L3(n+8) 18 #define L5(n) L4(n+0),L4(n+16) 19 #define L6(n) L5(n+0),L5(n+32) 20 21 void t0() { 22 NSArray *array = [NSArray arrayWithObjects: L1(0), (void*)0]; 23 24 p("array.length: %d\n", [array count]); 25 unsigned index = 0; 26 for (NSString *i in array) { // expected-warning {{collection expression type 'NSArray *' may not respond}} 27 p("element %d: %s\n", index++, [i cString]); 28 } 29 } 30 31 void t1() { 32 NSArray *array = [NSArray arrayWithObjects: L6(0), (void*)0]; 33 34 p("array.length: %d\n", [array count]); 35 unsigned index = 0; 36 for (NSString *i in array) { // expected-warning {{collection expression type 'NSArray *' may not respond}} 37 index++; 38 if (index == 10) 39 continue; 40 p("element %d: %s\n", index, [i cString]); 41 if (index == 55) 42 break; 43 } 44 } 45 46 // rdar://problem/9027663 47 void t2(NSArray *array) { 48 for (NSArray *array in array) { // expected-warning {{collection expression type 'NSArray *' may not respond}} 49 } 50 } 51
