mirror of
https://github.com/nodejs/node.git
synced 2025-05-16 13:53:32 +00:00
f579e11940
PR-URL: https://github.com/nodejs/node/pull/26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
22 lines
544 B
JavaScript
22 lines
544 B
JavaScript
// Copyright 2017 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 --opt
|
|
|
|
// Ensure that we properly check for elements on the receiver.
|
|
function foo(o) {
|
|
var s = "";
|
|
for (var i in o) s += i;
|
|
return s;
|
|
}
|
|
|
|
var a = [];
|
|
%PrepareFunctionForOptimization(foo);
|
|
assertEquals("", foo(a));
|
|
assertEquals("", foo(a));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertEquals("", foo(a));
|
|
a[0] = 1;
|
|
assertEquals("0", foo(a));
|