From: Dan Schmidt <dfan@...>
Date: 2001-03-30T06:10:05+09:00
Subject: [ruby-talk:13340] Re: hash slice implementaion

Mathieu Bouchard <matju@sympatico.ca> writes:

| On Fri, 30 Mar 2001, Dan Schmidt wrote:
| > I made the suggestion recently that Array#[] and Hash#[] exhibit
| > slicing behavior when the argument is an Array (or any Enumerable,
| > maybe?  Array#[](aRange) already works like this).
| 
| If you accept any Enumerable, you have to make an exception for Range,
| because Array#[] and Array#[]= bypass Range's builtin semantics
| completely in their support for negative indices.

Mm, and I don't think that you want to automatically get this behavior
for just anything you happen to be able to enumerate.

| > It would mean that you couldn't use Arrays as keys to Hashes, but
| > that seems like a bad idea anyway.
| 
| You think so?

Yes, I do, as I said.  But I wouldn't mind being proved wrong.

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