1 // RUN: %clang_cc1 -verify -fsyntax-only -Wno-objc-root-class %s 2 3 @class I0; // expected-note 2{{forward declaration of class here}} 4 5 // rdar://6811884 6 int g0 = sizeof(I0); // expected-error{{invalid application of 'sizeof' to an incomplete type 'I0'}} 7 8 // rdar://6821047 9 void *g3(I0 *P) { 10 P = P+5; // expected-error {{arithmetic on a pointer to an incomplete type 'I0'}} 11 12 return &P[4]; // expected-error{{expected method to read array element not found on object of type 'I0 *'}} 13 } 14 15 16 17 @interface I0 { 18 @public 19 char x[4]; 20 } 21 22 @property int p0; 23 @end 24 25 // size == 4 26 int g1[ sizeof(I0) // expected-error {{application of 'sizeof' to interface 'I0' is not supported on this architecture and platform}} 27 == 4 ? 1 : -1]; 28 29 @implementation I0 30 @synthesize p0 = _p0; 31 @end 32 33 // size == 4 (we do not include extended properties in the 34 // sizeof). 35 int g2[ sizeof(I0) // expected-error {{application of 'sizeof' to interface 'I0' is not supported on this architecture and platform}} 36 == 4 ? 1 : -1]; 37 38 @interface I1 39 @property int p0; 40 @end 41 42 @implementation I1 43 @synthesize p0 = _p0; 44 @end 45 46 typedef struct { @defs(I1); } I1_defs; // expected-error {{use of @defs is not supported on this architecture and platform}} 47 48 // FIXME: This is currently broken due to the way the record layout we 49 // create is tied to whether we have seen synthesized properties. Ugh. 50 // int g3[ sizeof(I1) == 0 ? 1 : -1]; 51 52 // rdar://6821047 53 int bar(I0 *P) { 54 P = P+5; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}} 55 P = 5+P; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}} 56 P = P-5; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}} 57 58 return P[4].x[2]; // expected-error {{expected method to read array element not found on object of type 'I0 *'}} 59 } 60 61 62 @interface I @end 63 64 @interface XCAttributeRunDirectNode 65 { 66 @public 67 unsigned long attributeRuns[1024 + sizeof(I)]; // expected-error {{application of 'sizeof' to interface 'I' is not supported on this architecture and platform}} 68 int i; 69 } 70 @end 71 72 @implementation XCAttributeRunDirectNode 73 74 - (unsigned long)gatherStats:(id )stats 75 { 76 return attributeRuns[i]; 77 } 78 @end 79 80 81 @interface Foo @end 82 83 int foo() 84 { 85 Foo *f; 86 87 // Both of these crash clang nicely 88 ++f; // expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size for this architecture and platform}} 89 --f; // expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size for this architecture and platform}} 90 } 91
