From: Phrogz <phrogz@...>
Date: 2007-09-02T23:45:07+09:00
Subject: Re: idiomatic way to assign if not nil?

On Aug 31, 12:40 am, aalfred <alfred.anzlo...@gmail.com> wrote:
> Recently I had a similar problem. After some refactoring of code
> I rewrote the code with two (non-existing, but very DRY operators)
>
> I had those two cases:
>
>   foo = bar if !bar.nil?                 # (case 1)  or
>   foo = bar if foo.nil? && !bar.nil?     # (case 2)
>
> and rewrote them into:
>
>   foo ??= bar       # case 1
>   foo !!= bar       # case 2

How did you do that, given that those operators are (as you say) non-
existing, and the code in your resulting code produces a syntax error
(under 1.8.6, anyhow)? Did you modify the Ruby source?