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150
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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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