Forum: Ruby-dev no warning: found = in conditional, should be ==

Issue #4299 has been updated by ko1 (Koichi Sasada).

Target version changed from 2.0.0 to next minor

放置されているようなので next minor に送っておきます．
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Feature #4299: no warning: found = in conditional, should be ==
https://bugs.ruby-lang.org/issues/4299#change-31656

Author: znz (Kazuhiro NISHIYAMA)
Status: Feedback
Priority: Normal
Assignee: nobu (Nobuyoshi Nakada)
Category: core
Target version: next minor


=begin
 http://d.hatena.ne.jp/nagachika/20110119/ruby_trun...
 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