Add interceptor support for symbols

samples/process.cc

 // Copyright 2012 the V8 project authors. 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 in the documentation and/or other materials provided
@@ skipping 98 matching lines @@
   static void GetPath(Local<String> name,
                       const PropertyCallbackInfo<Value>& info);
   static void GetReferrer(Local<String> name,
                           const PropertyCallbackInfo<Value>& info);
   static void GetHost(Local<String> name,
                       const PropertyCallbackInfo<Value>& info);
   static void GetUserAgent(Local<String> name,
                            const PropertyCallbackInfo<Value>& info);
 
   // Callbacks that access maps
-  static void MapGet(Local<String> name,
+  static void MapGet(Local<Name> name,
                      const PropertyCallbackInfo<Value>& info);
-  static void MapSet(Local<String> name,
+  static void MapSet(Local<Name> name,
                      Local<Value> value,
                      const PropertyCallbackInfo<Value>& info);
 
   // Utility methods for wrapping C++ objects as JavaScript objects,
   // and going back again.
   Handle<Object> WrapMap(map<string, string>* obj);
   static map<string, string>* UnwrapMap(Handle<Object> obj);
   Handle<Object> WrapRequest(HttpRequest* obj);
   static HttpRequest* UnwrapRequest(Handle<Object> obj);
 
@@ skipping 220 matching lines @@
 
 
 // Convert a JavaScript string to a std::string.  To not bother too
 // much with string encodings we just use ascii.
 string ObjectToString(Local<Value> value) {
   String::Utf8Value utf8_value(value);
   return string(*utf8_value);
 }
 
 
-void JsHttpRequestProcessor::MapGet(Local<String> name,
+void JsHttpRequestProcessor::MapGet(Local<Name> name,
                                     const PropertyCallbackInfo<Value>& info) {
+  if (name->IsSymbol()) return;
+
   // Fetch the map wrapped by this object.
   map<string, string>* obj = UnwrapMap(info.Holder());
 
   // Convert the JavaScript string to a std::string.
-  string key = ObjectToString(name);
+  string key = ObjectToString(Local<String>::Cast(name));
 
   // Look up the value if it exists using the standard STL ideom.
   map<string, string>::iterator iter = obj->find(key);
 
   // If the key is not present return an empty handle as signal
   if (iter == obj->end()) return;
 
   // Otherwise fetch the value and wrap it in a JavaScript string
   const string& value = (*iter).second;
   info.GetReturnValue().Set(String::NewFromUtf8(
       info.GetIsolate(), value.c_str(), String::kNormalString,
       static_cast<int>(value.length())));
 }
 
 
-void JsHttpRequestProcessor::MapSet(Local<String> name,
+void JsHttpRequestProcessor::MapSet(Local<Name> name,
                                     Local<Value> value_obj,
                                     const PropertyCallbackInfo<Value>& info) {
+  if (name->IsSymbol()) return;
+
   // Fetch the map wrapped by this object.
   map<string, string>* obj = UnwrapMap(info.Holder());
 
   // Convert the key and value to std::strings.
-  string key = ObjectToString(name);
+  string key = ObjectToString(Local<String>::Cast(name));
   string value = ObjectToString(value_obj);
 
   // Update the map.
   (*obj)[key] = value;
 
   // Return the value; any non-empty handle will work.
   info.GetReturnValue().Set(value_obj);
 }
 
 
@@ skipping 264 matching lines @@
   JsHttpRequestProcessor processor(isolate, source);
   map<string, string> output;
   if (!processor.Initialize(&options, &output)) {
     fprintf(stderr, "Error initializing processor.\n");
     return 1;
   }
   if (!ProcessEntries(&processor, kSampleSize, kSampleRequests))
     return 1;
   PrintMap(&output);
 }