1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 
3 struct S {
method_returns_retainedS4   __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 };
ret_retained()12 __attribute__((os_returns_retained)) S *ret_retained() {
13   return nullptr;
14 }
15 
ret_retained_value()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 
ret_not_retained()20 __attribute__((os_returns_not_retained)) S *ret_not_retained() {
21   return nullptr;
22 }
23 
ret_not_retained_value()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 
accept_consumed_arg(S * arg)28 void accept_consumed_arg(__attribute__((os_consumed)) S *arg) {}
29 
accept_consumed_arg_by_value(S arg)30 void accept_consumed_arg_by_value(__attribute__((os_consumed)) S arg) {} // expected-warning{{os_consumed attribute only applies to pointer parameters}}
31 
accept_consumed_arg_no_extra_arg(S * arg)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 
returns_retained_no_extra_arg()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 
os_returns_no_retained_no_extra_args(S * arg)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 
no_consumes_this_on_function()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 
write_into_out_parameter(S ** out)50 void write_into_out_parameter(__attribute__((os_returns_retained)) S** out) {}
51 
write_into_out_parameter_on_nonzero(S ** out)52 bool write_into_out_parameter_on_nonzero(__attribute__((os_returns_retained_on_non_zero)) S** out) {}
53 
write_into_out_parameter_on_nonzero_invalid(S * out)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 
write_into_out_parameter_on_zero(S ** out)56 bool write_into_out_parameter_on_zero(__attribute__((os_returns_retained_on_zero)) S** out) {}
57 
write_into_out_parameter_on_zero_invalid(S * out)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 
write_into_out_parameter_ref(S * & out)60 void write_into_out_parameter_ref(__attribute__((os_returns_retained)) S*& out) {}
61 
62 typedef S* SPtr;
63 
write_into_out_parameter_typedef(SPtr * out)64 void write_into_out_parameter_typedef(__attribute__((os_returns_retained)) SPtr* out) {}
65 
write_into_out_parameter_invalid(S * out)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 
write_into_out_parameter_not_retained(S ** out)68 void write_into_out_parameter_not_retained(__attribute__((os_returns_not_retained)) S **out) {}
69 
write_into_out_parameter_not_retained(S volatile * const * const out)70 void write_into_out_parameter_not_retained(__attribute__((os_returns_not_retained)) S volatile * const * const out) {}
71 
write_into_not_retainedout_parameter_invalid(S * out)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 
write_into_not_retainedout_parameter_too_many_pointers(S *** out)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}}
75