expand_js_compressor

# File actionpack/lib/sprockets/railtie.rb, line 80
      def expand_js_compressor(sym)
        case sym
        when :closure
          require 'closure-compiler'
          Closure::Compiler.new
        when :uglifier
          require 'uglifier'
          Uglifier.new
        when :yui
          require 'yui/compressor'
          YUI::JavaScriptCompressor.new
        else
          sym
        end
      end