    # File lib/core-uncommon/facets/module/module_load.rb, line 47
      def module_require( path )
        if path =~ /^[\/~.]/
          file = File.expand_path(path)
        else
          $LOAD_PATH.each do |lp|
            file = File.join(lp,path)
            break if File.exist?(file)
            file += '.rb'
            break if File.exist?(file)
            file = nil
          end
        end
        raise LoadError, "no such file to load -- #{path}" unless file
        # per-module load cache
        $module_require ||= {}
        $module_require[self] ||= {}
        loaded = $module_require[self]
        if loaded.key?(file)
          false
        else
          loaded[file] = true
          script = File.read(file)
          module_eval(script)
          true
        end
      end