[macruby-changes] [MacRuby/MacRuby] a89c32: in Hash#update, checks first whether receiver is f...

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  Branch: refs/heads/master
  Home:   https://github.com/MacRuby/MacRuby

  Commit: a89c327a0ae611b0f6c94200aeb486d3d8544088
      https://github.com/MacRuby/MacRuby/commit/a89c327a0ae611b0f6c94200aeb486d3d8544088
  Author: Watson <watson1978 at gmail.com>
  Date:   2011-09-29 (Thu, 29 Sep 2011)

  Changed paths:
    M hash.c

  Log Message:
  -----------
  in Hash#update, checks first whether receiver is frozen.

Test Script:
----
require 'test/unit/assertions.rb'
include Test::Unit::Assertions

hash = {}
obj = Object.new

def obj.to_hash()
  raise Exception, "should not invoke #to_hash"
end
hash.freeze
assert_raise(RuntimeError){ hash.update(obj) }