From: Run Paint Run Run Date: 2009-07-09T08:23:00+09:00 Subject: [ruby-core:24221] [Bug #1747] Immediate Values Can be Frozen Bug #1747: Immediate Values Can be Frozen http://redmine.ruby-lang.org/issues/show/1747 Author: Run Paint Run Run Status: Open, Priority: Normal Category: core ruby -v: ruby 1.9.2dev (2009-07-08 trunk 23995) [i686-linux] On 1.8 you couldn't freeze an immediate. On 1.9 you can. Presumably this is a bug. $ ruby -ve 'a=true;a.freeze;p a.frozen?' ruby 1.9.2dev (2009-07-08 trunk 23995) [i686-linux] true $ ruby8 -ve 'a=true;a.freeze;p a.frozen?' ruby 1.8.8dev (2009-07-01) [i686-linux] false ---------------------------------------- http://redmine.ruby-lang.org