blob: 88c0632c15ec4c525315d930174b7949439306cd [file] [log] [blame]
// Copyright 2017 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/builtins/builtins-utils-inl.h"
#include "src/builtins/builtins.h"
#include "src/objects-inl.h"
namespace v8 {
namespace internal {
BUILTIN(IsPromise) {
SealHandleScope scope(isolate);
Handle<Object> object = args.atOrUndefined(isolate, 1);
return isolate->heap()->ToBoolean(object->IsJSPromise());
}
} // namespace internal
} // namespace v8