clang/test/Sema/attr-handles.cpp

   1 // RUN: %clang_cc1  -fsyntax-only -verify %s
   2
   3 // Decl annotations.
   4 void f(int *a __attribute__((acquire_handle("Fuchsia"))));
   5 void (*fp)(int handle [[clang::use_handle("Fuchsia")]]);
   6 auto lambda = [](int handle [[clang::use_handle("Fuchsia")]]){};
   7 void g(int a __attribute__((acquire_handle("Fuchsia")))); // expected-error {{attribute only applies to output parameters}}
   8 void h(int *a __attribute__((acquire_handle))); // expected-error {{'acquire_handle' attribute takes one argument}}
   9 void h(int *a __attribute__((acquire_handle(1)))); // expected-error {{expected string literal as argument of 'acquire_handle' attribute}}
  10 void h(int *a __attribute__((acquire_handle("RandomString", "AndAnother")))); // expected-error {{'acquire_handle' attribute takes one argument}}
  11 __attribute__((release_handle("Fuchsia"))) int i(); // expected-warning {{'release_handle' attribute only applies to parameters}}
  12 __attribute__((use_handle("Fuchsia"))) int j(); // expected-warning {{'use_handle' attribute only applies to parameters}}
  13 int a __attribute__((acquire_handle("Fuchsia"))); // expected-warning {{'acquire_handle' attribute only applies to functions, typedefs, and parameters}}
  14 int (* __attribute__((acquire_handle("Fuchsia"))) fpt)(char *); // expected-warning {{'acquire_handle' attribute only applies to functions, typedefs, and parameters}}
  15
  16 // Type annotations.
  17 auto lambdat = [](int handle __attribute__((use_handle("Fuchsia"))))
  18     __attribute__((acquire_handle("Fuchsia"))) -> int { return 0; };
  19 int __attribute((acquire_handle("Fuchsia"))) ta; // expected-warning {{'acquire_handle' attribute only applies to functions, typedefs, and parameters}}
  20 int open(const char *path, int flags, ...) [[clang::acquire_handle]]; // expected-error {{'acquire_handle' attribute takes one argument}}
  21
  22 // Typedefs.
  23 typedef int callback(char *) __attribute__((acquire_handle("Fuchsia")));