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207
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1 // RUN: %clang_cc1 %s -fblocks -fsyntax-only -verify
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2
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3 #define ASYNC(...) __attribute__((swift_async(__VA_ARGS__)))
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4 #define ASYNC_ERROR(...) __attribute__((swift_async_error(__VA_ARGS__)))
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5
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6 ASYNC(swift_private, 1)
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7 ASYNC_ERROR(zero_argument, 1)
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8 void test_good(void (^handler)(int));
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9
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10 ASYNC(swift_private, 2)
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11 ASYNC_ERROR(nonzero_argument, 2)
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12 void test_good2(double, void (^handler)(double, int, double));
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13
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14 enum SomeEnum { SE_a, SE_b };
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15
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16 ASYNC(swift_private, 1)
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17 ASYNC_ERROR(nonzero_argument, 1)
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18 void test_good3(void (^handler)(enum SomeEnum, double));
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19
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20 ASYNC_ERROR(zero_argument, 1)
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21 ASYNC(swift_private, 1)
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22 void test_rev_order(void (^handler)(int));
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23
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24 @class NSError;
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25
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26 ASYNC(swift_private, 1)
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27 ASYNC_ERROR(nonnull_error)
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28 void test_nserror(void (^handler)(NSError *));
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29
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30 typedef struct __attribute__((objc_bridge(NSError))) __CFError * CFErrorRef;
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31
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32 ASYNC(swift_private, 1)
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33 ASYNC_ERROR(nonnull_error)
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34 void test_cferror(void (^handler)(CFErrorRef));
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35
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36 ASYNC(swift_private, 1)
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37 ASYNC_ERROR(nonnull_error) // expected-error {{'swift_async_error' attribute with 'nonnull_error' convention can only be applied to a function with a completion handler with an error parameter}}
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38 void test_interror(void (^handler)(int));
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39
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40 ASYNC(swift_private, 1)
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41 ASYNC_ERROR(zero_argument, 1) // expected-error {{'swift_async_error' attribute with 'zero_argument' convention must have an integral-typed parameter in completion handler at index 1, type here is 'double'}}
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42 void test_not_integral(void (^handler)(double));
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43
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44 ASYNC(swift_private, 1)
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45 ASYNC_ERROR(none)
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46 void test_none(void (^)());
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47
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48 ASYNC(none)
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49 ASYNC_ERROR(none)
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50 void test_double_none(void (^)());
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51
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52 ASYNC(none)
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53 ASYNC_ERROR(none, 1) // expected-error {{'swift_async_error' attribute takes one argument}}
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54 void test_double_none_args();
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55
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56 ASYNC(swift_private, 1)
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57 ASYNC_ERROR(nonnull_error, 1) // expected-error{{'swift_async_error' attribute takes one argument}}
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58 void test_args(void (^)(void));
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59
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60 ASYNC(swift_private, 1)
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61 ASYNC_ERROR(zero_argument, 1, 1) // expected-error{{'swift_async_error' attribute takes no more than 2 arguments}}
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62 void test_args2(void (^)(int));
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63
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64 ASYNC_ERROR(none) int x; // expected-warning{{'swift_async_error' attribute only applies to functions and Objective-C methods}}
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65
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66 @interface ObjC
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67 -(void)m1:(void (^)(int))handler
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68 ASYNC(swift_private, 1)
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69 ASYNC_ERROR(zero_argument, 1);
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70
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71 -(void)m2:(int)first withSecond:(void (^)(int))handler
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72 ASYNC(swift_private, 2)
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73 ASYNC_ERROR(nonzero_argument, 1);
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74
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75 -(void)m3:(void (^)(void))block
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76 ASYNC_ERROR(zero_argument, 1) // expected-error {{'swift_async_error' attribute parameter 2 is out of bounds}}
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77 ASYNC(swift_private, 1);
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78
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79 -(void)m4:(void (^)(double, int, float))handler
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80 ASYNC(swift_private, 1)
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81 ASYNC_ERROR(nonzero_argument, 1); // expected-error{{swift_async_error' attribute with 'nonzero_argument' convention must have an integral-typed parameter in completion handler at index 1, type here is 'double'}}
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82
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83 -(void)m5:(void (^)(NSError *))handler
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84 ASYNC(swift_private, 1)
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85 ASYNC_ERROR(nonnull_error);
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86
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87 -(void)m6:(void (^)(void *))handler
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88 ASYNC(swift_private, 1)
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89 ASYNC_ERROR(nonnull_error); // expected-error{{'swift_async_error' attribute with 'nonnull_error' convention can only be applied to a method with a completion handler with an error parameter}}
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90 @end
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91
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92 // 'swift_error' and 'swift_async_error' are OK on one function.
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93 ASYNC(swift_private, 1)
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94 ASYNC_ERROR(nonnull_error)
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95 __attribute__((swift_error(nonnull_error)))
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96 void swift_error_and_swift_async_error(void (^handler)(NSError *), NSError **);
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97
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98 @interface TestNoSwiftAsync
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99 // swift_async_error can make sense without swift_async.
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100 -(void)doAThingWithCompletion:(void (^)(NSError *))completion
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101 ASYNC_ERROR(nonnull_error);
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102 @end
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