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