Gitiles
Code Review Sign In
gerrit-public.fairphone.software / toolchain / llvm-project / b4adf55e0f050a494cc0c9a98b0bd46e8e30070a / . / clang / test / SemaObjC / format-arg-attribute.m
blob: 8ad34e38738ccee04efc00ed896aac38f924d685 [file] [log] [blame]
Fariborz Jahanian7395c792014-02-07 19:25:10 +0000[diff] [blame]1// RUN: %clang_cc1 -verify -fsyntax-only %s
Fariborz Jahanianf1c25022009-05-20 17:41:43 +0000[diff] [blame]2
3@class NSString;
4
5extern NSString *fa2 (const NSString *) __attribute__((format_arg(1)));
6extern NSString *fa3 (NSString *) __attribute__((format_arg(1)));
7
Aaron Ballmanb7243382013-07-23 19:30:11 +0000[diff] [blame]8extern void fc1 (const NSString *) __attribute__((format_arg)); // expected-error {{'format_arg' attribute takes one argument}}
9extern void fc2 (const NSString *) __attribute__((format_arg())); // expected-error {{'format_arg' attribute takes one argument}}
10extern void fc3 (const NSString *) __attribute__((format_arg(1, 2))); // expected-error {{'format_arg' attribute takes one argument}}
Fariborz Jahanianf1c25022009-05-20 17:41:43 +0000[diff] [blame]11
Aaron Ballman853273f2015-11-04 16:09:04 +0000[diff] [blame]12struct s1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to non-K&R-style functions}}
13union u1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to non-K&R-style functions}}
14enum e1 { E1V0 } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to non-K&R-style functions}}
Fariborz Jahanianf1c25022009-05-20 17:41:43 +0000[diff] [blame]15
16extern NSString *ff3 (const NSString *) __attribute__((format_arg(3-2)));
Douglas Gregord2472d42013-05-02 23:25:32 +0000[diff] [blame]17extern NSString *ff4 (const NSString *) __attribute__((format_arg(foo))); // expected-error {{use of undeclared identifier 'foo'}}
Fariborz Jahanianf1c25022009-05-20 17:41:43 +0000[diff] [blame]18
19/* format_arg formats must take and return a string. */
20extern NSString *fi0 (int) __attribute__((format_arg(1))); // expected-error {{format argument not a string type}}
21extern NSString *fi1 (NSString *) __attribute__((format_arg(1)));
22
23extern NSString *fi2 (NSString *) __attribute__((format_arg(1)));
24
25extern int fi3 (const NSString *) __attribute__((format_arg(1))); // expected-error {{function does not return NSString}}
26extern NSString *fi4 (const NSString *) __attribute__((format_arg(1)));
27extern NSString *fi5 (const NSString *) __attribute__((format_arg(1)));