From: "David A. Black" <dblack@...>
Date: 2010-01-01T20:20:04+09:00
Subject: Re: Why can't I use "or" here?

Hi --

On Thu, 31 Dec 2009, Albert Schlef wrote:

> Well. it turns out there aren't that many ways in ruby.
>
> I originally tried to do the following:
>
>  some_func(ARGV[0] or raise "You must provide an argument")
>
> I wish it worked. But it doesn't. So I changed it to:
>
>  some_func(ARGV[0] || raise "You must provide an argument")
>
> It still didn't work. So finally I did:
>
>  some_func(ARGV[0] || (raise "You must provide an argument"))
>
> It works. But, I must say, it isn't as beautiful as my original plan. It
> doesn't read as English.

It's not supposed to; it's supposed to read as Ruby :-) I wouldn't
make too much of the English-likeness. I think of it more as an
emergent thing than as a style guideline.


David

-- 
David A. Black
Senior Developer, Cyrus Innovation Inc.
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