mirror of
https://github.com/tc39/test262.git
synced 2025-05-09 09:20:30 +02:00
7298a38552
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
33 lines
586 B
JavaScript
33 lines
586 B
JavaScript
// Copyright 2016 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
|
|
|
|
var expected = undefined;
|
|
|
|
function foo() {
|
|
var a = [0,,{}];
|
|
a.shift();
|
|
assertEquals(expected, a[0]);
|
|
}
|
|
foo();
|
|
foo();
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
foo();
|
|
|
|
expected = 42;
|
|
Array.prototype[0] = 153;
|
|
Array.prototype[1] = expected;
|
|
foo();
|
|
|
|
function bar() {
|
|
var a = [0,,{}];
|
|
a.shift();
|
|
assertEquals(expected, a[0]);
|
|
}
|
|
bar();
|
|
bar();
|
|
%OptimizeFunctionOnNextCall(bar);
|
|
bar();
|