nodejs/deps/v8/test/mjsunit/es9/object-spread-ic-multiple-transitions.js
Michaël Zasso 9b4bf7de6c
deps: update V8 to 7.1.302.28
PR-URL: https://github.com/nodejs/node/pull/23423
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
2018-12-06 15:23:33 +01:00

17 lines
541 B
JavaScript

// Copyright 2018 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.
(function testMegamorphicWithNonSimpleTransitionHandler() {
function spread(o) { return { ...o }; }
// Set up transition tree
let obj = { ...{}, a: 0, b: 1, boom: 2};
// make CloneObjectIC MEGAMORPHIC
spread(new Proxy({}, {}));
// Ensure we don't crash, and create the correct object
assertEquals({ a: 0, b: 1, c: 2 }, spread({ a: 0, b: 1, c: 2 }));
})();