Streamline the scanner for external two byte string input.

src/api.cc

 // Copyright 2009 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 1028 matching lines @@
   }
   Utils::OpenHandle(this)->set_internal_field_count(i::Smi::FromInt(value));
 }
 
 
 // --- S c r i p t D a t a ---
 
 
 ScriptData* ScriptData::PreCompile(const char* input, int length) {
   unibrow::Utf8InputBuffer<> buf(input, length);
-  return i::PreParse(&buf, NULL);
+  return i::PreParse(i::Handle<i::String>(), &buf, NULL);

[Kasper Lund, 2009/08/18 06:49:41]

i::Handle<i::String>::null() to make it more explicit?

[Feng Qian, 2009/08/18 07:14:10]

Ah, didn't know this trick, but it is a bit confusing that one may think
i::Handle<i::String>::null() is a null string.

 }
 
 
 ScriptData* ScriptData::New(unsigned* data, int length) {
   return new i::ScriptDataImpl(i::Vector<unsigned>(data, length));
 }
 
 
 // --- S c r i p t ---
 
@@ skipping 2585 matching lines @@
       reinterpret_cast<HandleScopeImplementer*>(storage);
   List<void**>* blocks_of_archived_thread = thread_local->Blocks();
   v8::ImplementationUtilities::HandleScopeData* handle_data_of_archived_thread =
       &thread_local->handle_scope_data_;
   Iterate(v, blocks_of_archived_thread, handle_data_of_archived_thread);
 
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal