Re: Why the need for the id type?
Re: Why the need for the id type?
- Subject: Re: Why the need for the id type?
- From: Chris Williams <email@hidden>
- Date: Mon, 18 Jun 2007 14:57:30 -0700
- Thread-topic: Why the need for the id type?
On 6/18/07 2:28 PM, "Greg Titus" <email@hidden> wrote:
> In this code:
>
> id foo;
> [foo someRandomMethod];
>
> As long as -someRandomMethod exists _anywhere_ on any class, it will
> work. Importantly, -someRandomMethod can be implemented on many
> classes which DO NOT share any common root class, and the code will
> work.
Important distinction -- it will COMPILE. I may NOT work. In fact, it
could fail in a very ugly fashion at runtime if in fact foo is not an object
with -someRandomMethod by that point.
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