Blink IDL roll.

core/scripts/template_expander.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 23 matching lines @@
 sys.path.append(os.path.join(_current_dir, *([os.pardir] * 4)))
 import jinja2
 
 
 def apply_template(path_to_template, params):
     dirname, basename = os.path.split(path_to_template)
     path_to_templates = os.path.join(_current_dir, "templates")
     jinja_env = jinja2.Environment(loader=jinja2.FileSystemLoader([dirname, path_to_templates]))
     template = jinja_env.get_template(basename)
     return template.render(params)
+
+
+def use_jinja(template_file_name):
+    def real_decorator(generator):
+        def generator_internal(*args, **kwargs):
+            parameters = generator(*args, **kwargs)
+            return apply_template(template_file_name, parameters)
+        generator_internal.func_name = generator.func_name
+        return generator_internal
+    return real_decorator