mirror of
https://github.com/nodejs/node.git
synced 2025-05-15 17:51:35 +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>
56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
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 a = [0, 1];
|
|
a["true"] = "true";
|
|
a["false"] = "false";
|
|
a["null"] = "null";
|
|
a["undefined"] = "undefined";
|
|
|
|
// Ensure we don't accidentially truncate true when used to index arrays.
|
|
(function() {
|
|
function f(x) { return a[x]; }
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
assertEquals(0, f(0));
|
|
assertEquals(0, f(0));
|
|
%OptimizeFunctionOnNextCall(f);
|
|
assertEquals("true", f(true));
|
|
})();
|
|
|
|
// Ensure we don't accidentially truncate false when used to index arrays.
|
|
(function() {
|
|
function f( x) { return a[x]; }
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
assertEquals(0, f(0));
|
|
assertEquals(0, f(0));
|
|
%OptimizeFunctionOnNextCall(f);
|
|
assertEquals("false", f(false));
|
|
})();
|
|
|
|
// Ensure we don't accidentially truncate null when used to index arrays.
|
|
(function() {
|
|
function f( x) { return a[x]; }
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
assertEquals(0, f(0));
|
|
assertEquals(0, f(0));
|
|
%OptimizeFunctionOnNextCall(f);
|
|
assertEquals("null", f(null));
|
|
})();
|
|
|
|
// Ensure we don't accidentially truncate undefined when used to index arrays.
|
|
(function() {
|
|
function f( x) { return a[x]; }
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
assertEquals(0, f(0));
|
|
assertEquals(0, f(0));
|
|
%OptimizeFunctionOnNextCall(f);
|
|
assertEquals("undefined", f(undefined));
|
|
})();
|