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// RUN: %clang_cc1 -verify -fsyntax-only -fblocks %s
// RUN: %clang_cc1 -xobjective-c++ -verify -fsyntax-only -fblocks %s
#define SA(...) __attribute__((swift_async(__VA_ARGS__)))
SA(none) int a; // expected-warning{{'swift_async' attribute only applies to functions and Objective-C methods}}
SA(none) void b(void);
SA(not_swift_private, 0) void c(void); // expected-error{{'swift_async' attribute parameter 2 is out of bounds}}
SA(swift_private, 1) void d(void); // expected-error{{'swift_async' attribute parameter 2 is out of bounds}}
SA(swift_private, 1) void e(int); // expected-error{{'swift_async' completion handler parameter must have block type returning 'void', type here is 'int'}}
SA(not_swift_private, 1) void f(int (^)(void)); // expected-error-re{{'swift_async' completion handler parameter must have block type returning 'void', type here is 'int (^)({{(void)?}})'}}
SA(swift_private, 1) void g(void (^)(void));
SA(none, 1) void h(void); // expected-error{{'swift_async' attribute takes one argument}}
SA() void i(void); // expected-error{{'swift_async' attribute takes at least 1 argument}}
SA(not_swift_private) void j(void); // expected-error{{'swift_async' attribute requires exactly 2 arguments}}
SA(43) void k(void); // expected-error{{'swift_async' attribute requires parameter 1 to be an identifier}}
SA(not_a_thing, 0) void l(void); // expected-error{{first argument to 'swift_async' must be either 'none', 'swift_private', or 'not_swift_private'}}
@interface TestOnMethods
-(void)m1:(int (^)(void))callback SA(swift_private, 1); // expected-error-re{{'swift_async' completion handler parameter must have block type returning 'void', type here is 'int (^)({{(void)?}})'}}
-(void)m2:(void (^)(void))callback SA(swift_private, 0); // expected-error{{'swift_async' attribute parameter 2 is out of bounds}}
-(void)m3:(void (^)(void))callback SA(swift_private, 2); // expected-error{{'swift_async' attribute parameter 2 is out of bounds}}
-(void)m4 SA(none);
-(void)m5:(int)p handler:(void (^)(int))callback SA(not_swift_private, 2);
@end
#ifdef __cplusplus
struct S {
SA(none) void mf1();
SA(swift_private, 2) void mf2(void (^)());
SA(swift_private, 1) void mf3(void (^)()); // expected-error{{'swift_async' attribute is invalid for the implicit this argument}}
SA(swift_private, 0) void mf4(void (^)()); // expected-error{{'swift_async' attribute parameter 2 is out of bounds}}
SA(not_swift_private, 2) void mf5(int (^)()); // expected-error{{'swift_async' completion handler parameter must have block type returning 'void', type here is 'int (^)()'}}
};
#endif
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