From: "ko1 (Koichi Sasada)" <redmine@...>
Date: 2012-04-25T12:12:18+09:00
Subject: [ruby-core:44612] [ruby-trunk - Feature #6354][Open] Remove escape (break/return/redo/next support) from class/module scope


Issue #6354 has been reported by ko1 (Koichi Sasada).

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Feature #6354: Remove escape (break/return/redo/next support) from class/module scope
https://bugs.ruby-lang.org/issues/6354

Author: ko1 (Koichi Sasada)
Status: Open
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: 
Target version: 


Let's remove global escape (break/return/redo/next support) from class/module scope.

Yes, it introduces incompatibility.  However, anyone use it?
I think the following examples are evil (difficult to understand).

  # examples:
  1.times{
    class C
      break # break from 1.times
    end
  }
  
  1.times{
    class C
      module M
        break # break from 1.times
      end
    end
  }
  
  3.times{|n|
    p n # repeat print 0
    class C
      redo
    end
  }
  
  ->{
    class C
      return return from outer lambda block
    end
  }.call
  
  ->{
    proc{
      class C
        return # return from outer lambda (not proc) block
      end
    }.call
  }.call

etc, etc.




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