clang/test/Sema/attr-osobject.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 struct S {
   4   __attribute__((os_returns_retained)) S* method_returns_retained() {
   5     return nullptr;
   6   }
   7
   8   __attribute__((os_consumes_this)) void method_consumes_this();
   9
  10   __attribute__((os_consumes_this)) static void rejected_on_static(); // expected-warning{{'os_consumes_this' attribute only applies to non-static member functions}}
  11 };
  12 __attribute__((os_returns_retained)) S *ret_retained() {
  13   return nullptr;
  14 }
  15
  16 __attribute__((os_returns_retained)) S ret_retained_value() { // expected-warning{{'os_returns_retained' attribute only applies to functions that return a pointer}}
  17   return {};
  18 }
  19
  20 __attribute__((os_returns_not_retained)) S *ret_not_retained() {
  21   return nullptr;
  22 }
  23
  24 __attribute__((os_returns_not_retained)) S ret_not_retained_value() { // expected-warning{{'os_returns_not_retained' attribute only applies to functions that return a pointer}}
  25   return {};
  26 }
  27
  28 void accept_consumed_arg(__attribute__((os_consumed)) S *arg) {}
  29
  30 void accept_consumed_arg_by_value(__attribute__((os_consumed)) S arg) {} // expected-warning{{os_consumed attribute only applies to pointer parameters}}
  31
  32 void accept_consumed_arg_no_extra_arg(__attribute__((os_consumed(10))) S *arg) {} // expected-error{{'os_consumed' attribute takes no arguments}}
  33
  34 struct __attribute__((os_consumed)) NoAttrOnStruct {}; // expected-warning{{'os_consumed' attribute only applies to parameters}}
  35
  36 __attribute__((os_returns_retained(10))) S* returns_retained_no_extra_arg() { // expected-error{{'os_returns_retained' attribute takes no arguments}}
  37   return nullptr;
  38 }
  39
  40 struct __attribute__((os_returns_retained)) NoRetainAttrOnStruct {}; // expected-warning{{'os_returns_retained' attribute only applies to functions, Objective-C methods, Objective-C properties, and parameters}}
  41
  42 __attribute__((os_returns_not_retained(10))) S* os_returns_no_retained_no_extra_args( S *arg) { // expected-error{{'os_returns_not_retained' attribute takes no arguments}}
  43   return nullptr;
  44 }
  45
  46 struct __attribute__((os_returns_not_retained)) NoNotRetainedAttrOnStruct {}; // expected-warning{{'os_returns_not_retained' attribute only applies to functions, Objective-C methods, Objective-C properties, and parameters}}
  47
  48 __attribute__((os_consumes_this)) void no_consumes_this_on_function() {} // expected-warning{{'os_consumes_this' attribute only applies to non-static member functions}}
  49
  50 void write_into_out_parameter(__attribute__((os_returns_retained)) S** out) {}
  51
  52 bool write_into_out_parameter_on_nonzero(__attribute__((os_returns_retained_on_non_zero)) S** out) {}
  53
  54 bool write_into_out_parameter_on_nonzero_invalid(__attribute__((os_returns_retained_on_non_zero)) S* out) {} // expected-warning{{'os_returns_retained_on_non_zero' attribute only applies to pointer/reference-to-OSObject-pointer parameters}}
  55
  56 bool write_into_out_parameter_on_zero(__attribute__((os_returns_retained_on_zero)) S** out) {}
  57
  58 bool write_into_out_parameter_on_zero_invalid(__attribute__((os_returns_retained_on_zero)) S* out) {} // expected-warning{{'os_returns_retained_on_zero' attribute only applies to pointer/reference-to-OSObject-pointer parameters}}
  59
  60 void write_into_out_parameter_ref(__attribute__((os_returns_retained)) S*& out) {}
  61
  62 typedef S* SPtr;
  63
  64 void write_into_out_parameter_typedef(__attribute__((os_returns_retained)) SPtr* out) {}
  65
  66 void write_into_out_parameter_invalid(__attribute__((os_returns_retained)) S* out) {} // expected-warning{{'os_returns_retained' attribute only applies to pointer/reference-to-OSObject-pointer parameters}}
  67
  68 void write_into_out_parameter_not_retained(__attribute__((os_returns_not_retained)) S **out) {}
  69
  70 void write_into_out_parameter_not_retained(__attribute__((os_returns_not_retained)) S volatile * const * const out) {}
  71
  72 void write_into_not_retainedout_parameter_invalid(__attribute__((os_returns_not_retained)) S* out) {} // expected-warning{{'os_returns_not_retained' attribute only applies to pointer/reference-to-OSObject-pointer parameters}}
  73
  74 void write_into_not_retainedout_parameter_too_many_pointers(__attribute__((os_returns_not_retained)) S*** out) {} // expected-warning{{'os_returns_not_retained' attribute only applies to pointer/reference-to-OSObject-pointer parameters}}