Ben Holley benolee

This is not intended to be comprehensive or authoritative, just free online resources I've found valuable while learning more about Erlang.

	methods = Hash.new do \|hash, klass\|
	klass.instance_methods.each do \|mid\|
	m = klass.instance_method mid rescue next
	hash[m.name] = [] unless hash.key? m.name
	hash[m.name] \|= [klass]
	end
	end

	ObjectSpace.each_object(Class) do \|klass\|
	methods[klass]

	class Thread
	alias fiber_variable_get []
	alias fiber_variable_set []=
	alias [] thread_variable_get
	alias []= thread_variable_set
	end

	class Fiber
	def [] key
	Thread.current.fiber_variable_get key

	RubyVM::FrozenCore = (-1024..1024)
	.map { \|offset\| RubyVM.object_id + offset }
	.map { \|ptr\| ObjectSpace._id2ref(ptr) rescue nil }
	.grep(Class)
	.find { \|k\| k.method_defined?(:"core#define_method") }

	class RubyVM::FrozenCore
	set_postexe = instance_method(:"core#set_postexe")

	define_method(:"core#set_postexe") { \|*\| self }

	module PipeMixin
	def >>(proc_or_method, *)
	case proc_or_method
	when Proc, Method, UnboundMethod
	proc_or_method.call(self)
	else
	super
	end
	end
	end

	<!DOCTYPE html>
	<html>
	<head>
	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
	<script src="http://builds.emberjs.com.s3.amazonaws.com/handlebars-1.0.0-rc.4.js"></script>
	<script src="http://builds.emberjs.com.s3.amazonaws.com/ember-1.0.0-rc.6.js"></script>
	<meta charset=utf-8 />
	<title></title>
	</head>
	<body>

	class Foo
	define_method(:bar, &RubyVM::InstructionSequence.new('self').method(:eval))
	end

	Foo.new.bar
	#=> main

	class UnboundMethod
	def self.new(name = :'', &block)
	Module.new.module_eval do
	define_method(name, block)
	instance_method(name)
	end
	end

	def call(receiver, *args, &block)
	bind(receiver).call(*args, &block)

	source 'https://rubygems.org'
	gem 'minitest', '~> 5.0'

Instruction