From: "David A. Black" <dblack@...>
Date: 2008-04-30T22:52:13+09:00
Subject: Re: How to create "def method(item)= (value)" ?

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Hi --

On Wed, 30 Apr 2008, Phillip Gawlowski wrote:

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> Hash: SHA1
>
> I=C3=B1aki Baz Castillo wrote:
> | 2008/4/30, Phillip Gawlowski <cmdjackryan@googlemail.com>:
> |>  | You could also do:
> |>  |
> |>  |   def param[]=3D(key,value)
> |>  |     @params[key] =3D value
> |>  |   end
> |>  |
> |>  |   object.param[key] =3D value
> |>
> |>  Oh, I'm gonna steal that idiom if you don't mind. ;)
> |
> | I'm sorry, but as I've replied in this thread that method naming
> | (using []) is invalid in Ruby  :(
>
> Sort of. As a singleton method, you get the syntax error. But not if you
> define [] as a method:
>
> irb(main):001:0> def []=3D(key,value)
> irb(main):002:1> end
> =3D> nil

It's not the singletonness that stops it; you can do this:

   def object.[]=3D(k,v) # etc.

What made my example wrong was that I had concocted an illegal method
name.


David

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