clang/test/SemaCXX/attr-swiftcall.cpp

   1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s
   2
   3 #define SWIFTCALL __attribute__((swiftcall))
   4 #define SWIFTASYNCCALL __attribute__((swiftasynccall))
   5 #define INDIRECT_RESULT __attribute__((swift_indirect_result))
   6 #define ERROR_RESULT __attribute__((swift_error_result))
   7 #define CONTEXT __attribute__((swift_context))
   8 #define ASYNC_CONTEXT __attribute__((swift_async_context))
   9
  10 int notAFunction SWIFTCALL; // expected-warning {{'swiftcall' only applies to function types; type here is 'int'}}
  11 int notAnAsyncFunction SWIFTASYNCCALL; // expected-warning {{'swiftasynccall' only applies to function types; type here is 'int'}}
  12 void variadic(int x, ...) SWIFTCALL; // expected-error {{variadic function cannot use swiftcall calling convention}}
  13 void variadic_async(int x, ...) SWIFTASYNCCALL; // expected-error {{variadic function cannot use swiftasynccall calling convention}}
  14 void multiple_ccs(int x) SWIFTCALL __attribute__((vectorcall)); // expected-error {{vectorcall and swiftcall attributes are not compatible}}
  15 void multiple_ccs_async(int x) SWIFTASYNCCALL __attribute__((vectorcall)); // expected-error {{vectorcall and swiftasynccall attributes are not compatible}}
  16 void (*functionPointer)(void) SWIFTCALL;
  17 void (*asyncFunctionPointer)(void) SWIFTASYNCCALL;
  18
  19 void indirect_result_nonswift(INDIRECT_RESULT void *out); // expected-error {{'swift_indirect_result' parameter can only be used with swiftcall or swiftasynccall calling convention}}
  20 void indirect_result_bad_position(int first, INDIRECT_RESULT void *out) SWIFTCALL; // expected-error {{'swift_indirect_result' parameters must be first parameters of function}}
  21 void indirect_result_bad_type(INDIRECT_RESULT int out) SWIFTCALL; // expected-error {{'swift_indirect_result' parameter must have pointer type; type here is 'int'}}
  22 void indirect_result_single(INDIRECT_RESULT void *out) SWIFTCALL;
  23 void indirect_result_multiple(INDIRECT_RESULT void *out1, INDIRECT_RESULT void *out2) SWIFTCALL;
  24 void indirect_result_single_async(INDIRECT_RESULT void *out) SWIFTASYNCCALL;
  25 void indirect_result_multiple_async(INDIRECT_RESULT void *out1, INDIRECT_RESULT void *out2) SWIFTASYNCCALL;
  26
  27 void error_result_nonswift(ERROR_RESULT void **error); // expected-error {{'swift_error_result' parameter can only be used with swiftcall calling convention}} expected-error{{'swift_error_result' parameter must follow 'swift_context' parameter}}
  28 void error_result_bad_position2(int first, ERROR_RESULT void **error) SWIFTCALL; // expected-error {{'swift_error_result' parameter must follow 'swift_context' parameter}}
  29 void error_result_bad_type(CONTEXT void *context, ERROR_RESULT int error) SWIFTCALL; // expected-error {{'swift_error_result' parameter must have pointer to unqualified pointer type; type here is 'int'}}
  30 void error_result_bad_type2(CONTEXT void *context, ERROR_RESULT int *error) SWIFTCALL; // expected-error {{'swift_error_result' parameter must have pointer to unqualified pointer type; type here is 'int *'}}
  31 void error_result_okay(int a, int b, CONTEXT void *context, ERROR_RESULT void **error) SWIFTCALL;
  32 void error_result_okay(CONTEXT void *context, ERROR_RESULT void **error, void *selfType, char **selfWitnessTable) SWIFTCALL;
  33
  34 void context_nonswift(CONTEXT void *context); // expected-error {{'swift_context' parameter can only be used with swiftcall or swiftasynccall calling convention}}
  35 void context_bad_type(CONTEXT int context) SWIFTCALL; // expected-error {{'swift_context' parameter must have pointer type; type here is 'int'}}
  36 void context_okay(CONTEXT void *context) SWIFTCALL;
  37 void context_okay(CONTEXT void *context, void *selfType, char **selfWitnessTable) SWIFTCALL;
  38 void context_okay_async(CONTEXT void *context) SWIFTASYNCCALL;
  39 void context_okay2_async(CONTEXT void *context, void *selfType, char **selfWitnessTable) SWIFTASYNCCALL;
  40
  41 void async_context_nonswift(ASYNC_CONTEXT void *context); // OK
  42 void async_context_bad_type(ASYNC_CONTEXT int context) SWIFTASYNCCALL; // expected-error {{'swift_async_context' parameter must have pointer type; type here is 'int'}}
  43 void async_context_okay(ASYNC_CONTEXT void *context) SWIFTASYNCCALL;
  44 void async_context_okay(void *someArg, ASYNC_CONTEXT void *context, void *otherArg) SWIFTASYNCCALL;
  45
  46 template <class T> void indirect_result_temp_okay1(INDIRECT_RESULT T *out) SWIFTCALL;
  47 template <class T> void indirect_result_temp_okay2(INDIRECT_RESULT T out) SWIFTCALL; // expected-note {{candidate template ignored: substitution failure [with T = int]: 'swift_indirect_result' parameter must have pointer type; type here is 'int'}}
  48 void test_indirect_result_temp(void *out) {
  49   indirect_result_temp_okay1(out);
  50   indirect_result_temp_okay2(out);
  51   indirect_result_temp_okay2(1); // expected-error {{no matching function for call to 'indirect_result_temp_okay2'}}
  52 }