Module: IRB::MethodExtender

Defined in:
lib/irb/extend-command.rb

Instance Method Summary collapse

Instance Method Details

#def_post_proc(base_method, extend_method) ⇒ Object 



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# File 'lib/irb/extend-command.rb', line 241

def def_post_proc(base_method, extend_method)
  base_method = base_method.to_s
  extend_method = extend_method.to_s

  alias_name = new_alias_name(base_method)
  module_eval %[
    alias_method alias_name, base_method
    def #{base_method}(*opts)
	  send :#{alias_name}, *opts
	  send :#{extend_method}, *opts
	end
  ]
end

#def_pre_proc(base_method, extend_method) ⇒ Object 



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# File 'lib/irb/extend-command.rb', line 227

def def_pre_proc(base_method, extend_method)
  base_method = base_method.to_s
  extend_method = extend_method.to_s

  alias_name = new_alias_name(base_method)
  module_eval %[
    alias_method alias_name, base_method
    def #{base_method}(*opts)
	  send :#{extend_method}, *opts
	  send :#{alias_name}, *opts
	end
  ]
end

#new_alias_name(name, prefix = "__alias_of__",, postfix = "__")) ⇒ Object

return #prefix#name#postfix<num>



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# File 'lib/irb/extend-command.rb', line 256

def new_alias_name(name, prefix = "__alias_of__", postfix = "__")
  base_name = "#{prefix}#{name}#{postfix}"
  all_methods = instance_methods(true) + private_instance_methods(true)
  same_methods = all_methods.grep(/^#{Regexp.quote(base_name)}[0-9]*$/)
  return base_name if same_methods.empty?
  no = same_methods.size
  while !same_methods.include?(alias_name = base_name + no)
	no += 1
  end
  alias_name
end