gistfile1.txt

# Compiler code

def compile(clazz, signature_provider=nil)
  signature_provider=clazz unless signature_provider

  clazz.public_instance_methods.each do |name|
    signature = signature_provider.signature_for name
    # do it...
  end
end


# .....Note below signature_for is the only thing the compiler cares about (probably need
# to be something for annotations/class defs as well.  'signature' is merely an example which 
# populates something which signature_for can use.

module OrdinarySignatureProvider
  def signature_for(name)
    @signatures[name]
  end

  def signature(name, map)
    @signatures[name] = map
  end
end

# Another neat thing about this is separating signature definitions from the class itself
# Imagine instrospecting a Java type/interface and generating the signatures to apply 
# directly to a ruby class which happens to have the same methods.  I like this scenario for
# mapping Java types without needing to mark up my Ruby source.