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// 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.
function get() {
// Update the descriptor array now shared between the Foo map and the
// (Foo + c) map.
o1.c = 10;
// Change the type of the field on the new descriptor array in-place to
// Tagged. If Object.assign has a cached descriptor array, then it will point
// to the old Foo map's descriptors, which still have .b as Double.
o2.b = "string";
return 1;
}
function Foo() {
Object.defineProperty(this, "a", {get, enumerable: true});
// Initialise Foo.b to have Double representation.
this.b = 1.5;
}
var o1 = new Foo();
var o2 = new Foo();
var target = {};
Object.assign(target, o2);
// Make sure that target has the right representation after assignment.
assertEquals(target.b, "string");
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