[LLVMbugs] [Bug 11746] New: False positive warning with 'instancetype' and deprecated method of same name in NSString
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Wed Jan 11 12:44:47 PST 2012
http://llvm.org/bugs/show_bug.cgi?id=11746
Bug #: 11746
Summary: False positive warning with 'instancetype' and
deprecated method of same name in NSString
Product: new-bugs
Version: trunk
Platform: Macintosh
OS/Version: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: new bugs
AssignedTo: unassignedbugs at nondot.org
ReportedBy: sean at rogue-research.com
CC: llvmbugs at cs.uiuc.edu
Classification: Unclassified
Created attachment 7863
--> http://llvm.org/bugs/attachment.cgi?id=7863
repro case
Using clang r147866 on Mac OS X 10.7, the code below causes this warning:
$ /path/to/my/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[1] that this should not warn.
[1] as described here:
<http://clang.llvm.org/docs/LanguageExtensions.html#objc_instancetype>
Here's the code (also attached):
-----------
#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;
}
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