The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/ecma_5/strict/15.4.5.1.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,84 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +
     1.6 +/*
     1.7 + * Any copyright is dedicated to the Public Domain.
     1.8 + * http://creativecommons.org/licenses/publicdomain/
     1.9 + */
    1.10 +
    1.11 +var out = {};
    1.12 +
    1.13 +function arr() {
    1.14 +  return Object.defineProperty([1, 2, 3, 4], 2, {configurable: false});
    1.15 +}
    1.16 +
    1.17 +function nonStrict1(out)
    1.18 +{
    1.19 +  var a = out.array = arr();
    1.20 +  a.length = 2;
    1.21 +}
    1.22 +
    1.23 +function strict1(out)
    1.24 +{
    1.25 +  "use strict";
    1.26 +  var a = out.array = arr();
    1.27 +  a.length = 2;
    1.28 +  return a;
    1.29 +}
    1.30 +
    1.31 +out.array = null;
    1.32 +nonStrict1(out);
    1.33 +assertEq(deepEqual(out.array, [1, 2, 3]), true);
    1.34 +
    1.35 +out.array = null;
    1.36 +try
    1.37 +{
    1.38 +  strict1(out);
    1.39 +  throw "no error";
    1.40 +}
    1.41 +catch (e)
    1.42 +{
    1.43 +  assertEq(e instanceof TypeError, true, "expected TypeError, got " + e);
    1.44 +}
    1.45 +assertEq(deepEqual(out.array, [1, 2, 3]), true);
    1.46 +
    1.47 +// Internally, SpiderMonkey has two representations for arrays:
    1.48 +// fast-but-inflexible, and slow-but-flexible. Adding a non-index property
    1.49 +// to an array turns it into the latter. We should test on both kinds.
    1.50 +function addx(obj) {
    1.51 +  obj.x = 5;
    1.52 +  return obj;
    1.53 +}
    1.54 +
    1.55 +function nonStrict2(out)
    1.56 +{
    1.57 +  var a = out.array = addx(arr());
    1.58 +  a.length = 2;
    1.59 +}
    1.60 +
    1.61 +function strict2(out)
    1.62 +{
    1.63 +  "use strict";
    1.64 +  var a = out.array = addx(arr());
    1.65 +  a.length = 2;
    1.66 +}
    1.67 +
    1.68 +out.array = null;
    1.69 +nonStrict2(out);
    1.70 +assertEq(deepEqual(out.array, addx([1, 2, 3])), true);
    1.71 +
    1.72 +out.array = null;
    1.73 +try
    1.74 +{
    1.75 +  strict2(out);
    1.76 +  throw "no error";
    1.77 +}
    1.78 +catch (e)
    1.79 +{
    1.80 +  assertEq(e instanceof TypeError, true, "expected TypeError, got " + e);
    1.81 +}
    1.82 +assertEq(deepEqual(out.array, addx([1, 2, 3])), true);
    1.83 +
    1.84 +if (typeof reportCompare === "function")
    1.85 +  reportCompare(true, true);
    1.86 +
    1.87 +print("Tests complete");