apply.rb

## There's more than one way to do it.

# 0
thing = [1, 2, 3]

# 1
thing.each { }

# 2 (raggi)
thing.each() { }

# 3
thing.send(:send, :send, :send, :send, :each) { }

# 4 (manveru)
thing.method(:each).__send__(:send, :call){ }

# 5
Array.instance_method(:each).__send__(:send, :bind, thing).instance_eval { call { } }

# 6
Array.eval(:each) { }.with(thing)
BEGIN { def Object.eval(m, *a, &b);r,o=self,Object.new;class << o;self;end.send(:define_method, :with){|x|r.instance_method(m).bind(x).call(*a, &b)};o end }