Files
clang-p2996/clang/test/SemaObjC/format-arg-attribute.m
John McCall 80ee5963fd Pretty up the wrong-number-of-arguments-for-attribute diagnostic by
using a custom plural form.  Split out the range diagnostics as their
own message.

llvm-svn: 126840
2011-03-02 12:15:05 +00:00

28 lines
1.7 KiB
Objective-C

// RUN: %clang_cc1 -verify -fsyntax-only %s
@class NSString;
extern NSString *fa2 (const NSString *) __attribute__((format_arg(1)));
extern NSString *fa3 (NSString *) __attribute__((format_arg(1)));
extern void fc1 (const NSString *) __attribute__((format_arg)); // expected-error {{attribute takes one argument}}
extern void fc2 (const NSString *) __attribute__((format_arg())); // expected-error {{attribute takes one argument}}
extern void fc3 (const NSString *) __attribute__((format_arg(1, 2))); // expected-error {{attribute takes one argument}}
struct s1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to functions}}
union u1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to functions}}
enum e1 { E1V0 } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to functions}}
extern NSString *ff3 (const NSString *) __attribute__((format_arg(3-2)));
extern NSString *ff4 (const NSString *) __attribute__((format_arg(foo))); // expected-error {{attribute takes one argument}}
/* format_arg formats must take and return a string. */
extern NSString *fi0 (int) __attribute__((format_arg(1))); // expected-error {{format argument not a string type}}
extern NSString *fi1 (NSString *) __attribute__((format_arg(1)));
extern NSString *fi2 (NSString *) __attribute__((format_arg(1)));
extern int fi3 (const NSString *) __attribute__((format_arg(1))); // expected-error {{function does not return NSString}}
extern NSString *fi4 (const NSString *) __attribute__((format_arg(1)));
extern NSString *fi5 (const NSString *) __attribute__((format_arg(1)));