From: Hiroshi NAKAMURA <nakahiro@...>
Date: 2011-06-26T17:41:12+09:00
Subject: [ruby-dev:43927] [Ruby 1.9 - Bug #4299] no warning: found = in conditional, should be ==


Issue #4299 has been updated by Hiroshi NAKAMURA.

Target version set to 1.9.3


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Bug #4299: no warning: found = in conditional, should be ==
http://redmine.ruby-lang.org/issues/4299

Author: Kazuhiro NISHIYAMA
Status: Assigned
Priority: Normal
Assignee: Nobuyoshi Nakada
Category: core
Target version: 1.9.3
ruby -v: ruby 1.9.3dev (2011-01-20 trunk 30614) [i686-linux]


=begin
 http://d.hatena.ne.jp/nagachika/20110119/ruby_trunk_changes_30595_30603
 で知ったのですが、右辺の種類によっては「warning: found = in conditional, should be ==」が出ないことがあるようです。
 
 % ruby-trunk -ve '!_=""'
 ruby 1.9.3dev (2011-01-20 trunk 30614) [i686-linux]
 -e:1: warning: found = in conditional, should be ==
 % ruby-trunk -ve '!_=1' 
 ruby 1.9.3dev (2011-01-20 trunk 30614) [i686-linux]
 -e:1: warning: found = in conditional, should be ==
 % ruby-trunk -ve '!_={}'    
 ruby 1.9.3dev (2011-01-20 trunk 30614) [i686-linux]
 % ruby-trunk -ve '!_=[]'
 ruby 1.9.3dev (2011-01-20 trunk 30614) [i686-linux]
 %
=end



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