mruby-delegate

(日本語で書かれた原文 / Written original README in Japanese)

Delegated object available on mruby.

I'm trying to mimic Delegate, which is a standard attachment library of CRuby.

Cautions and limitations

It is not an implementation similar to CRuby.

• The immediate parent of the Delegator class is BasicObject, and customized Kernel objects do not include.
• The Delegator instance does not define the method of the delegate object, but it will be called via the method_missing method. This is to save heap memory.
• The DelegatorClass method defined in CRuby is undefined.
• Some Delegator instance methods defined in CRuby are undefined.

How to install

Build mruby by adding it as a gem to build_config.rb.

MRuby::Build.new do |conf|
  conf.gem "mruby-delegate", github: "dearblue/mruby-delegate"
end

---

If you want to depend on the mruby gem package, write it in mrbgem.rake.

# mrbgem.rake
MRuby::Gem::Specification.new("mruby-XXX") do |spec|
  ...
  spec.add_dependency "mruby-delegate", github: "dearblue/mruby-delegate"
end

How to use

Maybe it works as https://docs.ruby-lang.org/ja/latest/library/delegate.html ... hopefully.

Specification

• Package name: mruby-delegate
• Version: 0.2
• Product quality: CONCEPT
• Author: dearblue
• Project page: https://github.com/dearblue/mruby-delegate
• Licensing: Creative Commons Zero License (CC0; likely Public Domain)
• Required mruby version: 1.4.0 or later
• Object code size: 2 Ki bytes on FreeBSD 12.0 AMD64 with clang
• Heap usages per one delegate instance (on FreeBSD 12.0 AMD64):
  • 48 bytes: delegator object
  • 20×N bytes: delegated method table (N is count of string methods (probably more than 160))
  • about 3500 bytes: total
• Dependency external mrbgems: (NONE)
• Bundled C libraries (git-submodules): (NONE)