third_party/v8/test/mjsunit/regress/regress-10908.js

// Copyright 2020 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

let a = [];
Object.defineProperty(a, "length", {writable: false});
function f() {
  return a.pop();
}
assertThrows(f, TypeError, /Cannot assign to read only property 'length'/);

%PrepareFunctionForOptimization(f);
for (let i = 0; i < 3; i++) {
  assertThrows(f, TypeError, /Cannot assign to read only property 'length'/);
}
%OptimizeFunctionOnNextCall(f);
assertThrows(f, TypeError, /Cannot assign to read only property 'length'/);