16 lines
449 B
JavaScript
16 lines
449 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 foo() {
|
||
|
|
const r = {e: NaN, g: undefined, c: undefined};
|
||
|
|
const u = {__proto__: {}, e: new Set(), g: 0, c: undefined};
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
foo();
|
||
|
|
%OptimizeFunctionOnNextCall(foo);
|
||
|
|
const o = foo();
|
||
|
|
Object.defineProperty(o, 'c', {value: 42});
|