From: Run Paint Run Run <redmine@...>
Date: 2009-06-06T00:05:31+09:00
Subject: [ruby-core:23715] [Bug #1571] Hash Methods Behaving Inconsistently with Frozen Hashes

Bug #1571: Hash Methods Behaving Inconsistently with Frozen Hashes
http://redmine.ruby-lang.org/issues/show/1571

Author: Run Paint Run Run
Status: Open, Priority: Normal
ruby -v: ruby 1.9.2dev (2009-06-01 trunk 23614) [i686-linux]

As per matz's request in [ruby-core:23714], here are the Hash methods I've found which do not raise RuntimeErrors when the Hash is frozen and the method wouldn't have changed it:

Hash#merge!, e.g. h.merge!({})
Hash#update, e.g. h.update({})
Hash#reject!, e.g. {}.reject! {true}


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