From: Mathieu Bouchard <matju@...>
Date: 2001-03-30T02:25:55+09:00
Subject: [ruby-talk:13333] Re: hash slice implementaion

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.

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

You think so?

matju