[cfe-dev] Obj-C false positive warning with deprecation and instancetype?

[Sean McBride]

Hi all,

Using clang r147866 on Mac OS X 10.7, the code below causes this warning:

$ clang -fsyntax-only test.m 
test.m:18:11: warning: 'initWithContentsOfURL:' is deprecated [-Wdeprecated-declarations]
        return [[[self alloc] initWithContentsOfURL:inURL] autorelease];
                 ^

NSString has a deprecated method initWithContentsOfURL:, but in my own class it's not deprecated.  I would have thought that between my own use of instancetype and clang's special casing of alloc that this should not warn.  Is it a false positive bug?

-----------
#import <Foundation/Foundation.h>

@interface Awesome : NSObject { }
- (instancetype)initWithContentsOfURL:(NSURL*)inURL; // designated initializer
+ (instancetype)awsomeWithContentsOfURL:(NSURL*)inURL;
@end

@implementation Awesome

- (instancetype)initWithContentsOfURL:(NSURL*)inURL
{
	self = [super init];
	return self;
}

+ (instancetype)awsomeWithContentsOfURL:(NSURL*)inURL
{
	return [[[self alloc] initWithContentsOfURL:inURL] autorelease];
}

@end

int main (int argc, char *argv[])
{
    (void)argc; (void)argv;
    return 0;
}
-----------

Thanks,

Sean