e31f0a7d25
PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
46 lines
973 B
JavaScript
46 lines
973 B
JavaScript
// Copyright 2019 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.
|
|
|
|
// Flags: --allow-natives-syntax
|
|
|
|
(function NoStoreBecauseReadonlyLength() {
|
|
var a = [];
|
|
Object.defineProperty(a, 'length', { writable: false });
|
|
|
|
|
|
function f() {
|
|
var o = {__proto__: a};
|
|
o.push;
|
|
};
|
|
%PrepareFunctionForOptimization(f);
|
|
f();
|
|
f();
|
|
%OptimizeFunctionOnNextCall(f);
|
|
|
|
a[0] = 1.1;
|
|
f();
|
|
assertEquals(undefined, a[0]);
|
|
})();
|
|
|
|
(function NoStoreBecauseTypedArrayProto() {
|
|
const arr_proto = [].__proto__;
|
|
const arr = [];
|
|
|
|
function f() {
|
|
const i32arr = new Int32Array();
|
|
|
|
const obj = {};
|
|
obj.__proto__ = arr;
|
|
arr_proto.__proto__ = i32arr;
|
|
obj.__proto__ = arr;
|
|
arr_proto.__proto__ = i32arr;
|
|
};
|
|
%PrepareFunctionForOptimization(f);
|
|
f();
|
|
%OptimizeFunctionOnNextCall(f);
|
|
arr[1024] = [];
|
|
f();
|
|
assertEquals(undefined, arr[1024]);
|
|
})();
|