Userdata class for mruby

When shared mrb_state, you can share userdata objects between one Ruby code and the other.

install by mrbgems

• add conf.gem line to build_config.rb

MRuby::Build.new do |conf|

    # ... (snip) ...

    conf.gem :git => 'https://github.com/matsumoto-r/mruby-userdata.git'
end

How to use

• One ruby code A

  u = Userdata.new
  u.hoge = {:hoge => 1}

• The other ruby code B is shared mrb_state with ruby code A

  u = Userdata.new
  hash = u.hoge
  hash[:fuga] = 2
  u.hoge = hash
  
  p u.hoge # => {:hoge => 1, :fuga =>2}

• use userdata key

  mirb - Embeddable Interactive Ruby Shell
  
  This is a very early version, please test and report errors.
  Thanks :)
  
  > u = Userdata.new
   => #<Userdata:0x7f96ca808ad0 mrb_userdata_key_store="mrb_userdata_default_key">
  > u.hoge
   => nil
  > u.hoge = 1
   => 1
  > u.hoge
   => 1
  > q = Userdata.new
   => #<Userdata:0x7f96ca808590 mrb_userdata_key_store="mrb_userdata_default_key">
  > q.hoge
   => 1
  > q.hoge = q.hoge + 1
   => 2
  > u.hoge
   => 2
  > s = Userdata.new "my_key"
   => #<Userdata:0x7f96ca807d80 mrb_userdata_key_store="my_key">
  > s.hoge
   => nil
  > s.hoge = 1
   => 1
  > u.hoge
   => 2
  > q.hoge
   => 2

License

under the MIT License:

• http://www.opensource.org/licenses/mit-license.php