Regular Hash#update doesn't work with Dash about hashie HOT 3 CLOSED

h = Hash.new

puts "before undef: #{h.public_methods.grep(/\[\]/).join(', ')}"

class Hash
  undef :[]=
end

puts "after undef: #{h.public_methods.grep(/\[\]/).join(', ')}"

begin
  h[:foo] = 1
rescue => ex
  puts ex # NoMethodError
end

puts "before update: #{h.inspect}"
h.update(:foo => 1)
puts "after update: #{h.inspect}"

before undef []=, []
after undef []
undefined method `[]=' for {}:Hash
before update: {}
after update: {:foo=>1}

$ ruby -v
ruby 1.8.7 (2011-02-18 patchlevel 334) [i486-linux]

ruby 1.9.2p180 (2011-02-18 revision 30907) [i686-linux]