Extend API to allow setting length property for function templates.

src/api.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 1035 matching lines @@
 
 void FunctionTemplate::Inherit(v8::Handle<FunctionTemplate> value) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::FunctionTemplate::Inherit()")) return;
   ENTER_V8(isolate);
   Utils::OpenHandle(this)->set_parent_template(*Utils::OpenHandle(*value));
 }
 
 
 Local<FunctionTemplate> FunctionTemplate::New(InvocationCallback callback,
-    v8::Handle<Value> data, v8::Handle<Signature> signature) {
+    v8::Handle<Value> data, v8::Handle<Signature> signature, int length) {
   i::Isolate* isolate = i::Isolate::Current();
   EnsureInitializedForIsolate(isolate, "v8::FunctionTemplate::New()");
   LOG_API(isolate, "FunctionTemplate::New");
   ENTER_V8(isolate);
   i::Handle<i::Struct> struct_obj =
       isolate->factory()->NewStruct(i::FUNCTION_TEMPLATE_INFO_TYPE);
   i::Handle<i::FunctionTemplateInfo> obj =
       i::Handle<i::FunctionTemplateInfo>::cast(struct_obj);
   InitializeFunctionTemplate(obj);
   int next_serial_number = isolate->next_serial_number();
   isolate->set_next_serial_number(next_serial_number + 1);
   obj->set_serial_number(i::Smi::FromInt(next_serial_number));
   if (callback != 0) {
     if (data.IsEmpty()) data = v8::Undefined();
     Utils::ToLocal(obj)->SetCallHandler(callback, data);
   }
+  obj->set_length(length);
   obj->set_undetectable(false);
   obj->set_needs_access_check(false);
 
   if (!signature.IsEmpty())
     obj->set_signature(*Utils::OpenHandle(*signature));
   return Utils::ToLocal(obj);
 }
 
 
 Local<Signature> Signature::New(Handle<FunctionTemplate> receiver,
@@ skipping 150 matching lines @@
     Local<ObjectTemplate> templ =
         ObjectTemplate::New(v8::Handle<FunctionTemplate>(this));
     Utils::OpenHandle(this)->set_instance_template(*Utils::OpenHandle(*templ));
   }
   i::Handle<i::ObjectTemplateInfo> result(i::ObjectTemplateInfo::cast(
         Utils::OpenHandle(this)->instance_template()));
   return Utils::ToLocal(result);
 }
 
 
+void FunctionTemplate::SetLength(int length) {
+  i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
+  if (IsDeadCheck(isolate, "v8::FunctionTemplate::SetLength()")) return;
+  ENTER_V8(isolate);
+  Utils::OpenHandle(this)->set_length(length);
+}
+
+
 void FunctionTemplate::SetClassName(Handle<String> name) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::FunctionTemplate::SetClassName()")) return;
   ENTER_V8(isolate);
   Utils::OpenHandle(this)->set_class_name(*Utils::OpenHandle(*name));
 }
 
 
 void FunctionTemplate::SetHiddenPrototype(bool value) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
@@ skipping 5451 matching lines @@
 
   v->VisitPointers(blocks_.first(), first_block_limit_);
 
   for (int i = 1; i < blocks_.length(); i++) {
     v->VisitPointers(blocks_[i], &blocks_[i][kHandleBlockSize]);
   }
 }
 
 
 } }  // namespace v8::internal