From: Yusuke Endoh <mame@...>
Date: 2012-03-27T00:49:37+09:00
Subject: [ruby-core:43690] Re: [ruby-trunk - Feature #3963][Rejected] Map class in standard library

Hello,

2012/3/25, akr (Akira Tanaka) <akr@fsij.org>:
> I think no hope to add Map class as builtin.

I agree for two reasons.

The name "map" is not suitable.  In computer science, "map" stands for
an abstract data structure that preserves correspondence between a key
and a value.  See: http://en.wikipedia.org/wiki/Associative_array
Hash, binary tree, and "Ara Howard's Map" are all instances of map.
So the name is too general for the library.

In addition, standard libraries are basically shrinking.  It is hard
to add a new library except a good reason.

-- 
Yusuke Endoh <mame@tsg.ne.jp>