From: "trans (Thomas Sawyer)" <transfire@...>
Date: 2012-11-24T12:40:47+09:00
Subject: [ruby-core:49994] [ruby-trunk - Feature #7121] Extending the use of `require'


Issue #7121 has been updated by trans (Thomas Sawyer).


It's ugly, as it makes code harder to read. Please no.
----------------------------------------
Feature #7121: Extending the use of `require'
https://bugs.ruby-lang.org/issues/7121#change-33763

Author: mjones (Morgan Jones)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: 
Target version: next minor


=begin
I was playing with Ruby tonight and thought up an interesting idea to make (({require})) a bit better, so you can load multiple files sequentially using one method call.

Currently, (({require})) supports one argument, and throws a (({TypeError})) if you pass an array:

 irb(main):001:0> require %w(json yaml)
 TypeError: can't convert Array into String

However, there's a way to patch Kernel that makes it respond to multiple objects passed in an (({Array})).

 module Kernel
   @@require = method :require

   def require *args
     args.flatten!
     args.collect! do |a|
       raise ArgumentError.new "arguments to `require' must be strings or symbols" unless a.is_a?(String) || a.is_a?(Symbol)
       @@require.call a.to_s
     end

     args.length == 1 ? args.first : args
   end
 end

The new behavior doesn't actually require the modification of any code that calls (({require})) (pretty much anything, really), and new code can take advantage of the new functionality instantly.

 irb> require %w(json yaml)
 => [true, false]
 irb> require :pp
 => false
 irb> require 'rails'
 => true
 irb> require %w(json yaml), :pp, 'rails'
 => [true, false, false, true]
=end

Thanks for considering this.


-- 
http://bugs.ruby-lang.org/