Fix for issue 1814 for dart:dom

client/dom/scripts/systemfrog.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides shared functionality for the systems to generate
 frog binding from the IDL database."""
 
 import os
 from generator import *
@@ skipping 297 matching lines @@
         CTOR=self._interface.id,
         TYPE=element_type)
 
 
   def AddOperation(self, info):
     """
     Arguments:
       info: An OperationInfo object.
     """
     # TODO(vsm): Handle overloads.
+    params = info.ParametersImplementationDeclaration(
+        lambda type_name: self._NarrowInputType(type_name))
+
+    native_body = dom_frog_native_bodies.get(
+        self._interface.id + '.' + info.name, '')
+    if native_body:
+      native_body = " '''" + native_body + "'''"
+
     self._members_emitter.Emit(
         '\n'
-        '  $TYPE $NAME($PARAMS) native;\n',
+        '  $TYPE $NAME($PARAMS) native$NATIVESTRING;\n',
         TYPE=self._NarrowOutputType(info.type_name),
         NAME=info.name,
-        PARAMS=info.ParametersImplementationDeclaration(
-            lambda type_name: self._NarrowInputType(type_name)))
+        PARAMS=params,
+        NATIVESTRING=native_body)