derek.holloway
7502bf64a4
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42 lines
2.3 KiB
Objective-C
42 lines
2.3 KiB
Objective-C
// RUN: %clang_cc1 -verify -fsyntax-only %s
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@interface NSString
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+(instancetype)stringWithCString:(const char *)cstr __attribute__((format_arg(1)));
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-(instancetype)initWithString:(NSString *)str __attribute__((format_arg(1)));
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+(instancetype _Nonnull)nonNullableString:(NSString *)str __attribute__((format_arg(1)));
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+(instancetype _Nullable)nullableString:(NSString *)str __attribute__((format_arg(1)));
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@end
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@protocol MaybeString
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-(instancetype)maybeString:(const char *)cstr __attribute__((format_arg(1))); // expected-error {{function does not return string type}}
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@end
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@class NSAttributedString;
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extern NSString *fa2 (const NSString *) __attribute__((format_arg(1)));
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extern NSString *fa3 (NSString *) __attribute__((format_arg(1)));
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extern void fc1 (const NSString *) __attribute__((format_arg)); // expected-error {{'format_arg' attribute takes one argument}}
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extern void fc2 (const NSString *) __attribute__((format_arg())); // expected-error {{'format_arg' attribute takes one argument}}
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extern void fc3 (const NSString *) __attribute__((format_arg(1, 2))); // expected-error {{'format_arg' attribute takes one argument}}
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struct s1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to Objective-C methods and non-K&R-style functions}}
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union u1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to}}
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enum e1 { E1V0 } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to}}
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extern NSString *ff3 (const NSString *) __attribute__((format_arg(3-2)));
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extern NSString *ff4 (const NSString *) __attribute__((format_arg(foo))); // expected-error {{use of undeclared identifier 'foo'}}
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/* format_arg formats must take and return a string. */
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extern NSString *fi0 (int) __attribute__((format_arg(1))); // expected-error {{format argument not a string type}}
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extern NSString *fi1 (NSString *) __attribute__((format_arg(1)));
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extern NSString *fi2 (NSString *) __attribute__((format_arg(1)));
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extern int fi3 (const NSString *) __attribute__((format_arg(1))); // expected-error {{function does not return NSString}}
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extern NSString *fi4 (const NSString *) __attribute__((format_arg(1)));
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extern NSString *fi5 (const NSString *) __attribute__((format_arg(1)));
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extern NSAttributedString *fattrs (const NSString *) __attribute__((format_arg(1)));
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