clang/test/SemaObjC/attr-cf_returns.m

   1 // RUN: %clang_cc1 -verify -fsyntax-only -fobjc-arc -fblocks %s
   2
   3 #if __has_feature(attribute_cf_returns_on_parameters)
   4 # error "okay!"
   5 // expected-error@-1 {{okay!}}
   6 #else
   7 # error "uh-oh"
   8 #endif
   9
  10 #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
  11 #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
  12
  13 int x CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to functions, methods, and parameters}}
  14 int y CF_RETURNS_NOT_RETAINED; // expected-warning{{'cf_returns_not_retained' attribute only applies to functions, methods, and parameters}}
  15
  16 typedef struct __CFFoo *CFFooRef;
  17
  18 int invalid1(void) CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to functions that return a pointer}}
  19 void invalid2(void) CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to functions that return a pointer}}
  20
  21 CFFooRef valid1(void) CF_RETURNS_RETAINED;
  22 id valid2(void) CF_RETURNS_RETAINED;
  23
  24 @interface Test
  25 - (int)invalid1 CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to methods that return a pointer}}
  26 - (void)invalid2 CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to methods that return a pointer}}
  27
  28 - (CFFooRef)valid1 CF_RETURNS_RETAINED;
  29 - (id)valid2 CF_RETURNS_RETAINED;
  30
  31 @property int invalidProp1 CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to properties that return a pointer}}
  32 @property void invalidProp2 CF_RETURNS_RETAINED; // expected-warning{{'cf_returns_retained' attribute only applies to properties that return a pointer}}
  33
  34 @property CFFooRef valid1 CF_RETURNS_RETAINED;
  35 @property id valid2 CF_RETURNS_RETAINED;
  36 @end
  37
  38 void invalidParam(int a CF_RETURNS_RETAINED, // expected-warning{{'cf_returns_retained' attribute only applies to pointer-to-CF-pointer parameters}}
  39                   int *b CF_RETURNS_RETAINED, // expected-warning{{'cf_returns_retained' attribute only applies to pointer-to-CF-pointer parameters}}
  40                   id c CF_RETURNS_RETAINED, // expected-warning{{'cf_returns_retained' attribute only applies to pointer-to-CF-pointer parameters}}
  41                   void *d CF_RETURNS_RETAINED, // expected-warning{{'cf_returns_retained' attribute only applies to pointer-to-CF-pointer parameters}}
  42                   CFFooRef e CF_RETURNS_RETAINED); // expected-warning{{'cf_returns_retained' attribute only applies to pointer-to-CF-pointer parameters}}
  43
  44 void validParam(id *a CF_RETURNS_RETAINED,
  45                 CFFooRef *b CF_RETURNS_RETAINED,
  46                 void **c CF_RETURNS_RETAINED);
  47 void validParam2(id *a CF_RETURNS_NOT_RETAINED,
  48                  CFFooRef *b CF_RETURNS_NOT_RETAINED,
  49                  void **c CF_RETURNS_NOT_RETAINED);