TIP: Autoload CORE

Want to see a cool trick? How about loading CORE methods automagically. It’s like Ruby’s #autoload for core extensions.

    require 'facets/opesc'

    class Object

      # This will automatically load (most) core methods
      # if they are not present when called.

      def method_missing(methodname, *a, &b)
        methodname = OpEsc.escape(methodname)
        begin
          require "facets/#{class}/#{methodname}"
          __send__(methodname, *a, &b)
        rescue LoadError
          super
        end  
      end

    end

NOTE: In version 2.8.x and less, this was possible simply via:

    require 'facets-live'

As of version 3.0+ this has been deprecated for being a YAGNI. Which accounts for this “tip” if you still would like to do it.

=== Super Secret Tip

I moved the code into OpEsc, if you want a quick way to do this.

    require 'facets/opesc'
    OpEsc.autoload_facets