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Re: initializers in Categories?



I do this quite a bit in my code. However, I have experienced one issue.

I attempted to create a initWithDescriptor: method for NSArray (at least I think it was NSArray). The idea being that I could create an array from an NSAppleEventDescriptor. However, when you send the initWithDescriptor: message, NSArray complains bitterly and effectively crashes the app. It seems you cannot send any messages to an NSArray until you have used one of its init method.

In the end to solve this I just made a +arrayWithDescriptor method instead.

Mike.

On 13 Jul 2006, at 8:07PM, Rob Ross wrote:

Can a category declare a new initializer for an object?

ie,

@interface Foo (MyCategory)

- (id) initWithSomeNewArgumentList:(Bar *)bar :(Baz *)baz;

@end

If this is possible, is this considered good/bad practice?


Rob Ross
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