From: Phillip Gawlowski <cmdjackryan@...>
Date: 2008-05-02T06:59:36+09:00
Subject: Re: Please explain nuances of ||=

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David A. Black wrote:
| Hi --
|
| On Fri, 2 May 2008, Phillip Gawlowski wrote:
|
| Whoops -- sorry :-)

As if. :P

| I actually have a feeling we're talking at cross-purposes, and that
| I'm somehow not getting something. All I'm saying is that h[x] ||=
| value is the same as h[x] || h[x] = value, for any hash h and any key
| x. That can be demonstrated easily (as Robert did) just by
| substituting one expression for the other. It's an unusual case, but
| it's legal. I'm not sure what would be needed beyond that to
| demonstrate that x = x || y is not a drop-in replacement for x ||= y.

Yeah, I'm taking the Bird's Eye View on it all, essentially saying: 'it
works like this almost always, but Hash is a special case, since it has
default values [or whatever the implementation detail is, that makes
Hash work differently]).

- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan
Blog: http://justarubyist.blogspot.com

~   "Endorsing products is the American way of expressing individuality."
- -Calvin
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