add StaticFreezer, see #82

lib/temple.rb

@@ -44,6 +44,7 @@ module Filters
     autoload :ControlFlow,        'temple/filters/control_flow'
     autoload :MultiFlattener,     'temple/filters/multi_flattener'
     autoload :StaticMerger,       'temple/filters/static_merger'
+    autoload :StaticFreezer,      'temple/filters/static_freezer'
     autoload :DynamicInliner,     'temple/filters/dynamic_inliner'
     autoload :Escapable,          'temple/filters/escapable'
     autoload :Eraser,             'temple/filters/eraser'

lib/temple/filters/static_freezer.rb

@@ -0,0 +1,9 @@
+module Temple
+  module Filters
+    class StaticFreezer < Filter
+      def on_static(str)
+        [:dynamic, "#{str.inspect}.freeze"]
+      end
+    end
+  end
+end

test/filters/test_static_freezer.rb

@@ -0,0 +1,11 @@
+require 'helper'
+
+describe Temple::Filters::StaticFreezer do
+  before do
+    @filter = Temple::Filters::StaticFreezer.new
+  end
+
+  it 'should freeze static' do
+    @filter.call([:static, 'hi']).should.equal [:dynamic, '"hi".freeze']
+  end
+end