Caching templates is now an option

lib/rabl-fast-json.rb

@@ -13,4 +13,14 @@ require 'rabl-fast-json/handler'
 require 'rabl-fast-json/railtie'
 
 module RablFastJson
+  mattr_accessor :cache_templates
+  @@cache_templates = true
+
+  def self.configure
+    yield self
+  end
+  
+  def self.cache_templates?
+    ActionController::Base.perform_caching && @@cache_templates
+  end
 end

lib/rabl-fast-json/library.rb

@@ -21,13 +21,16 @@ module RablFastJson
     end
 
     def get_compiled_template(path, source)
-      # @cached_templates[path] ||= 
+      if path && RablFastJson.cache_templates?
+        @cached_templates[path] ||= Compiler.new.compile_source(source)
+      else
         Compiler.new.compile_source(source)
       end
+    end
 
     def get(path)
       template = @cached_templates[path]
-      return template if !template.nil?
+      return template unless template.nil?
       t = @view_renderer.lookup_context.find_template(path, [], false)
       get_compiled_template(path, t.source)
     end

test/cache_templates_test.rb

@@ -0,0 +1,23 @@
+require 'test_helper'
+
+class CacheTemplatesTest < ActiveSupport::TestCase
+
+  setup do
+    RablFastJson::Library.reset_instance
+    @library = RablFastJson::Library.instance 
+  end
+  
+  test "cache templates if perform_caching is active and cache_templates is enabled" do
+    RablFastJson.cache_templates = true
+    ActionController::Base.stub(:perform_caching).and_return(true)    
+    
+    assert_equal @library.get_compiled_template('some/path', ""), @library.get_compiled_template('some/path', "")
+  end
+  
+  test "don't cache templates cache_templates is enabled but perform_caching is not active" do
+    RablFastJson.cache_templates = true
+    ActionController::Base.stub(:perform_caching).and_return(false)    
+    
+    refute_equal @library.get_compiled_template('some/path', ""), @library.get_compiled_template('some/path', "")
+  end
+end

test/test_helper.rb

@@ -5,6 +5,8 @@ require 'rspec/mocks'
 require 'minitest/autorun'
 require 'active_support/test_case'
 
+require 'action_controller'
+
 require 'singleton'
 class <<Singleton
   def included_with_reset(klass)