method

def_single_delegator

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What's this?

def_single_delegator(accessor, method, ali = method) public

Defines a method method which delegates to obj (i.e. it calls the method of the same name in obj). If new_name is provided, it is used as the name for the delegate method.

Show source

# File lib/forwardable.rb, line 248
  def def_single_delegator(accessor, method, ali = method)
    line_no = __LINE__; str = %{
      def #{ali}(*args, &block)
        begin
          #{accessor}.__send__(:#{method}, *args, &block)
        rescue Exception
          $@.delete_if{|s| %r"#{Regexp.quote(__FILE__)}"o =~ s} unless Forwardable::debug
          ::Kernel::raise
        end
      end
    }

    instance_eval(str, __FILE__, __LINE__)
  end

def_single_delegator

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