Module: MonkeySupport::CProxy

Included in:
ActiveSupport::Inflector
Defined in:
lib/monkeysupport/c_proxy.rb

Defined Under Namespace

Modules: Util

Instance Method Summary collapse

Instance Method Details

#monkey_c_proxy(ruby_name, c_name, args) ⇒ Object

Generates a proxy-to-C method.

Parameters:

- ruby_name -- the original name of the function to override
- c_name    -- the name of the C function in MonkeySupport::C to use
- args      -- list of arguments to funtion, by type.

args example: [:string, :fixnum, [:string, ‘-’], [:bool true]]

- takes a string, a fixnum, a string with default value '-', then a boolean
  with default value true.

EXAMPLE:

alias_method :__demodulize, :demodulize def demodulize(arg0)

begin
  MonkeySupport::C.activesupport_inflector_demodulize(arg0)
rescue TypeError
  __demodulize(arg0)
end

end



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# File 'lib/monkeysupport/c_proxy.rb', line 25

def monkey_c_proxy(ruby_name, c_name, args)
  arglist_with_defaults    = Util::arglist(args, true)
  arglist_without_defaults = Util::arglist(args, false)

  function = <<-EOS
    alias_method :__#{ruby_name}, :#{ruby_name}
    def #{ruby_name}(#{arglist_with_defaults})
      begin
        MonkeySupport::C.#{c_name}(#{arglist_without_defaults})
      rescue TypeError
        __#{ruby_name}(#{arglist_without_defaults})
      end
    end
  EOS

  class_eval(function)
end