Regexp caching

src/factory.cc

 // Copyright 2006-2008 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 790 matching lines @@
   Handle<Object> result = Handle<Object>(cache->Lookup(*keys));
   if (result->IsMap()) return Handle<Map>::cast(result);
   // Create a new map and add it to the cache.
   Handle<Map> map =
       CopyMap(Handle<Map>(context->object_function()->initial_map()));
   AddToMapCache(context, keys, map);
   return Handle<Map>(map);
 }
 
 
+void Factory::SetRegExpData(Handle<JSRegExp> regexp,
+                            JSRegExp::Type type,
+                            Handle<String> source,
+                            int flags,
+                            Handle<Object> data) {
+  Handle<FixedArray> store = NewFixedArray(JSRegExp::kDataSize);
+  store->set(JSRegExp::kTagIndex, Smi::FromInt(type));
+  store->set(JSRegExp::kSourceIndex, *source);
+  store->set(JSRegExp::kFlagsIndex, Smi::FromInt(flags));
+  store->set(JSRegExp::kAtomPatternIndex, *data);
+  regexp->set_data(*store);
+}
+
+
 void Factory::ConfigureInstance(Handle<FunctionTemplateInfo> desc,
                                 Handle<JSObject> instance,
                                 bool* pending_exception) {
   // Configure the instance by adding the properties specified by the
   // instance template.
   Handle<Object> instance_template = Handle<Object>(desc->instance_template());
   if (!instance_template->IsUndefined()) {
     Execution::ConfigureInstance(instance,
                                  instance_template,
                                  pending_exception);
   } else {
     *pending_exception = false;
   }
 }
 
 
 } }  // namespace v8::internal