[api] expose Array Iterators to API

src/api.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/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 6076 matching lines @@
   RETURN_ESCAPED(result);
 }
 
 
 Local<Object> Array::CloneElementAt(uint32_t index) {
   auto context = ContextFromHeapObject(Utils::OpenHandle(this));
   RETURN_TO_LOCAL_UNCHECKED(CloneElementAt(context, index), Object);
 }
 
 
+Local<Function> Array::GetKeysIterator(Isolate* isolate) {
+  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+  i::Handle<i::JSFunction> keys(
+      i_isolate->native_context()->array_keys_iterator(), i_isolate);
+  DCHECK(!keys.is_null());
+  return Utils::ToLocal(keys);
+}
+
+
+Local<Function> Array::GetValuesIterator(Isolate* isolate) {
+  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+  i::Handle<i::JSFunction> values(
+      i_isolate->native_context()->array_values_iterator(), i_isolate);
+  DCHECK(!values.is_null());
+  return Utils::ToLocal(values);
+}
+
+
+Local<Function> Array::GetEntriesIterator(Isolate* isolate) {
+  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+  i::Handle<i::JSFunction> entries(
+      i_isolate->native_context()->array_entries_iterator(), i_isolate);
+  DCHECK(!entries.is_null());
+  return Utils::ToLocal(entries);
+}
+
+
 Local<v8::Map> v8::Map::New(Isolate* isolate) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
   LOG_API(i_isolate, "Map::New");
   ENTER_V8(i_isolate);
   i::Handle<i::JSMap> obj = i_isolate->factory()->NewJSMap();
   return Utils::ToLocal(obj);
 }
 
 
 size_t v8::Map::Size() const {
@@ skipping 2254 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8