CODEWITHSUNDEEP
objective-cmacoscocoa
user2085689
user2085689

Reputation: 336

incompatible with type id<NSTextFieldDelegate>

I am getting new warning on my old OSX app. I am using OSX 10.10 and I am not quite sure where the problem is. Can someone help?

The actual warning is Property type 'id is incompatible with type id inherited from NSTextField

#import <Cocoa/Cocoa.h>
#import "HyperlinkTextFieldDelegate.h"

@interface HyperlinkTextField : NSTextField <NSTextFieldDelegate>

@property (assign) id <HyperlinkTextFieldDelegate> delegate; <--- warning showing up here
@end

The main implementation is

@interface HyperlinkTextField ()
@property (nonatomic, readonly) NSArray *hyperlinkInfos;
@property (nonatomic, readonly) NSTextView *textView;

- (void)_resetHyperlinkCursorRects;
@end

#define kHyperlinkInfoCharacterRangeKey @"range"
#define kHyperlinkInfoURLKey            @"url"
#define kHyperlinkInfoRectKey           @"rect"

@implementation HyperlinkTextField
@synthesize delegate;

And the delegate file is

 #import <Foundation/Foundation.h>

    @protocol HyperlinkTextFieldDelegate <NSObject>

    - (void) barLinkClicked: (id) sender;

    @end

Upvotes: 0

Views: 88

Answers (1)

matt
matt

Reputation: 535989

NSTextField already has a delegate property, and it is typed as id<NSTextFieldDelegate>. Thus, your HyperinkTextField, which is a subclass of NSTextField, inherits this property, just as the error message clearly tells you. You cannot override this inherited property and type it as id<HyperlinkTextFieldDelegate> where that is a different type.

Upvotes: 1

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