clang/test/SemaObjCXX/Inputs/nullability-consistency-arrays.h

   1 #include <stdarg.h>
   2
   3 void firstThingInTheFileThatNeedsNullabilityIsAnArray(int ints[]);
   4 #if ARRAYS_CHECKED
   5 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
   6 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
   7 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
   8 #endif
   9
  10 int *secondThingInTheFileThatNeedsNullabilityIsAPointer;
  11 #if !ARRAYS_CHECKED
  12 // expected-warning@-2 {{pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified)}}
  13 // expected-note@-3 {{insert '_Nullable' if the pointer may be null}}
  14 // expected-note@-4 {{insert '_Nonnull' if the pointer should never be null}}
  15 #endif
  16
  17 int *_Nonnull triggerConsistencyWarnings;
  18
  19 void test(
  20     int ints[],
  21 #if ARRAYS_CHECKED
  22 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
  23 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
  24 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
  25 #endif
  26     void *ptrs[], // expected-warning {{pointer is missing a nullability type specifier}}
  27 // expected-note@-1 {{insert '_Nullable' if the pointer may be null}}
  28 // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}}
  29 #if ARRAYS_CHECKED
  30 // expected-warning@-4 {{array parameter is missing a nullability type specifier}}
  31 // expected-note@-5 {{insert '_Nullable' if the array parameter may be null}}
  32 // expected-note@-6 {{insert '_Nonnull' if the array parameter should never be null}}
  33 #endif
  34     void **nestedPtrs[]); // expected-warning 2 {{pointer is missing a nullability type specifier}}
  35 // expected-note@-1 2 {{insert '_Nullable' if the pointer may be null}}
  36 // expected-note@-2 2 {{insert '_Nonnull' if the pointer should never be null}}
  37 #if ARRAYS_CHECKED
  38 // expected-warning@-4 {{array parameter is missing a nullability type specifier}}
  39 // expected-note@-5 {{insert '_Nullable' if the array parameter may be null}}
  40 // expected-note@-6 {{insert '_Nonnull' if the array parameter should never be null}}
  41 #endif
  42
  43 void testArraysOK(
  44     int ints[_Nonnull],
  45     void *ptrs[_Nonnull], // expected-warning {{pointer is missing a nullability type specifier}}
  46 // expected-note@-1 {{insert '_Nullable' if the pointer may be null}}
  47 // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}}
  48     void **nestedPtrs[_Nonnull]); // expected-warning 2 {{pointer is missing a nullability type specifier}}
  49 // expected-note@-1 2 {{insert '_Nullable' if the pointer may be null}}
  50 // expected-note@-2 2 {{insert '_Nonnull' if the pointer should never be null}}
  51 void testAllOK(
  52     int ints[_Nonnull],
  53     void * _Nullable ptrs[_Nonnull],
  54     void * _Nullable * _Nullable nestedPtrs[_Nonnull]);
  55
  56 void testVAList(va_list ok); // no warning
  57
  58 #if __cplusplus
  59 // Carefully construct a test case such that if a platform's va_list is an array
  60 // or pointer type, it gets tested, but otherwise it does not.
  61 template<class T, class F>
  62 struct pointer_like_or { typedef F type; };
  63 template<class T, class F>
  64 struct pointer_like_or<T*, F> { typedef T *type; };
  65 template<class T, class F>
  66 struct pointer_like_or<T* const, F> { typedef T * const type; };
  67 template<class T, class F>
  68 struct pointer_like_or<T[], F> { typedef T type[]; };
  69 template<class T, class F, unsigned size>
  70 struct pointer_like_or<T[size], F> { typedef T type[size]; };
  71
  72 void testVAListWithNullability(
  73   pointer_like_or<va_list, void*>::type _Nonnull x); // no errors
  74 #endif
  75
  76 void nestedArrays(int x[5][1]) {}
  77 #if ARRAYS_CHECKED
  78 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
  79 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
  80 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
  81 #endif
  82 void nestedArraysOK(int x[_Nonnull 5][1]) {}
  83
  84 #if !__cplusplus
  85 void staticOK(int x[static 5][1]){}
  86 #endif
  87
  88 int globalArraysDoNotNeedNullability[5];
  89
  90 typedef int INTS[4];
  91
  92 void typedefTest(
  93     INTS x,
  94 #if ARRAYS_CHECKED
  95 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
  96 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
  97 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
  98 #endif
  99     INTS _Nonnull x2,
 100     _Nonnull INTS x3,
 101     INTS y[2],
 102 #if ARRAYS_CHECKED
 103 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
 104 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
 105 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
 106 #endif
 107     INTS y2[_Nonnull 2]);
 108
 109
 110 #pragma clang assume_nonnull begin
 111 void testAssumeNonnull(
 112   int ints[],
 113 #if ARRAYS_CHECKED
 114 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
 115 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
 116 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
 117 #endif
 118   void *ptrs[],
 119 #if ARRAYS_CHECKED
 120 // expected-warning@-2 {{array parameter is missing a nullability type specifier}}
 121 // expected-note@-3 {{insert '_Nullable' if the array parameter may be null}}
 122 // expected-note@-4 {{insert '_Nonnull' if the array parameter should never be null}}
 123 #endif
 124   void **nestedPtrs[]); // expected-warning 2 {{pointer is missing a nullability type specifier}}
 125 // expected-note@-1 2 {{insert '_Nullable' if the pointer may be null}}
 126 // expected-note@-2 2 {{insert '_Nonnull' if the pointer should never be null}}
 127 #if ARRAYS_CHECKED
 128 // expected-warning@-4 {{array parameter is missing a nullability type specifier}}
 129 // expected-note@-5 {{insert '_Nullable' if the array parameter may be null}}
 130 // expected-note@-6 {{insert '_Nonnull' if the array parameter should never be null}}
 131 #endif
 132
 133 void testAssumeNonnullAllOK(
 134     int ints[_Nonnull],
 135     void * _Nullable ptrs[_Nonnull],
 136     void * _Nullable * _Nullable nestedPtrs[_Nonnull]);
 137 void testAssumeNonnullAllOK2(
 138     int ints[_Nonnull],
 139     void * ptrs[_Nonnull], // backwards-compatibility
 140     void * _Nullable * _Nullable nestedPtrs[_Nonnull]);
 141 #pragma clang assume_nonnull end