Arguments object has @@iterator

src/accessors.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/compiler.h"
 #include "src/contexts.h"
@@ skipping 138 matching lines @@
     // properties.
     if (!object->map()->is_extensible()) return true;
     JSObject::SetOwnPropertyIgnoreAttributes(object, Utils::OpenHandle(*name),
                                              value, NONE).Check();
   }
   return true;
 }
 
 
 //
+// Accessors::ArgumentsIterator
+//
+
+
+void Accessors::ArgumentsIteratorGetter(
+    v8::Local<v8::Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
+  DisallowHeapAllocation no_allocation;
+  HandleScope scope(isolate);
+  Object* result = isolate->native_context()->array_values_iterator();
+  info.GetReturnValue().Set(Utils::ToLocal(Handle<Object>(result, isolate)));
+}
+
+
+void Accessors::ArgumentsIteratorSetter(
+    v8::Local<v8::Name> name, v8::Local<v8::Value> val,
+    const v8::PropertyCallbackInfo<void>& info) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
+  HandleScope scope(isolate);
+  Handle<JSObject> object = Utils::OpenHandle(*info.This());
+  Handle<Object> value = Utils::OpenHandle(*val);
+
+  if (SetPropertyOnInstanceIfInherited(isolate, info, name, value)) return;
+
+  LookupIterator it(object, Utils::OpenHandle(*name));
+  CHECK(it.HasProperty());
+  DCHECK(it.HolderIsReceiverOrHiddenPrototype());
+  Object::SetDataProperty(&it, value);
+}
+
+
+Handle<AccessorInfo> Accessors::ArgumentsIteratorInfo(
+    Isolate* isolate, PropertyAttributes attributes) {
+  Handle<Name> name(isolate->native_context()->iterator_symbol(), isolate);
+  return MakeAccessor(isolate, name, &ArgumentsIteratorGetter,
+                      &ArgumentsIteratorSetter, attributes);
+}
+
+
+//
 // Accessors::ArrayLength
 //
 
 
 // The helper function will 'flatten' Number objects.
 Handle<Object> Accessors::FlattenNumber(Isolate* isolate,
                                         Handle<Object> value) {
   if (value->IsNumber() || !value->IsJSValue()) return value;
   Handle<JSValue> wrapper = Handle<JSValue>::cast(value);
   DCHECK(wrapper->GetIsolate()->native_context()->number_function()->
@@ skipping 1185 matching lines @@
   info->set_data(Smi::FromInt(index));
   Handle<Object> getter = v8::FromCData(isolate, &ModuleGetExport);
   Handle<Object> setter = v8::FromCData(isolate, &ModuleSetExport);
   info->set_getter(*getter);
   if (!(attributes & ReadOnly)) info->set_setter(*setter);
   return info;
 }
 
 
 } }  // namespace v8::internal