diff options
Diffstat (limited to 'src/node_util.cc')
| -rw-r--r-- | src/node_util.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/node_util.cc b/src/node_util.cc index 9f31786b32..41b1307bb4 100644 --- a/src/node_util.cc +++ b/src/node_util.cc @@ -57,6 +57,9 @@ static void PreviewEntries(const FunctionCallbackInfo<Value>& args) { Local<Array> entries; if (!args[0].As<Object>()->PreviewEntries(&is_key_value).ToLocal(&entries)) return; + // Fast path for WeakMap, WeakSet and Set iterators. + if (args.Length() == 1) + return args.GetReturnValue().Set(entries); Local<Array> ret = Array::New(env->isolate(), 2); ret->Set(env->context(), 0, entries).FromJust(); ret->Set(env->context(), 1, v8::Boolean::New(env->isolate(), is_key_value)) |