lib/crush/closure.rb in crush-0.2.0 vs lib/crush/closure.rb in crush-0.3.0

@@ -1,25 +1,30 @@
+require "crush/engine"
+
 module Crush
   module Closure
+    # Engine implementation of Google's Closure Compiler,
+    # using the closure-compiler gem. See:
+    #
+    # https://rubygems.org/gems/closure-compiler
     class Compiler < Crush::Engine
-      def self.engine_name
-        "closure"
-      end
+      self.default_mime_type = "application/javascript"
       
       def self.engine_initialized?
-        !!(defined? ::Closure) && !!(defined? ::Closure::Compiler)
+        !!(defined? ::Closure && defined? ::Closure::Compiler)
       end
     
       def initialize_engine
         require_template_library "closure-compiler"
       end
     
       def prepare
         @engine = ::Closure::Compiler.new(options)
+        @output = nil
       end
     
-      def evaluate
-        @engine.compile(data)
+      def evaluate(scope, locals, &block)
+        @output ||= @engine.compile(data)
       end
     end
   end
 end