1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/js1_5/Scope/regress-181834.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,149 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + *
1.11 + * Date: 25 November 2002
1.12 + * SUMMARY: Testing scope
1.13 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=181834
1.14 + *
1.15 + * This bug only bit in Rhino interpreted mode, when the
1.16 + * 'compile functions with dynamic scope' feature was set.
1.17 + *
1.18 + */
1.19 +//-----------------------------------------------------------------------------
1.20 +var UBound = 0;
1.21 +var BUGNUMBER = 181834;
1.22 +var summary = 'Testing scope';
1.23 +var status = '';
1.24 +var statusitems = [];
1.25 +var actual = '';
1.26 +var actualvalues = [];
1.27 +var expect= '';
1.28 +var expectedvalues = [];
1.29 +
1.30 +
1.31 +/*
1.32 + * If N<=0, |outer_d| just gets incremented once,
1.33 + * so the return value should be 1 in this case.
1.34 + *
1.35 + * If N>0, we end up calling inner() N+1 times:
1.36 + * inner(N), inner(N-1), ... , inner(0).
1.37 + *
1.38 + * Each call to inner() increments |outer_d| by 1.
1.39 + * The last call, inner(0), returns the final value
1.40 + * of |outer_d|, which should be N+1.
1.41 + */
1.42 +function outer(N)
1.43 +{
1.44 + var outer_d = 0;
1.45 + return inner(N);
1.46 +
1.47 + function inner(level)
1.48 + {
1.49 + outer_d++;
1.50 +
1.51 + if (level > 0)
1.52 + return inner(level - 1);
1.53 + else
1.54 + return outer_d;
1.55 + }
1.56 +}
1.57 +
1.58 +
1.59 +/*
1.60 + * This only has meaning in Rhino -
1.61 + */
1.62 +setDynamicScope(true);
1.63 +
1.64 +/*
1.65 + * Recompile the function |outer| via eval() in order to
1.66 + * feel the effect of the dynamic scope mode we have set.
1.67 + */
1.68 +var s = outer.toString();
1.69 +eval(s);
1.70 +
1.71 +status = inSection(1);
1.72 +actual = outer(-5);
1.73 +expect = 1;
1.74 +addThis();
1.75 +
1.76 +status = inSection(2);
1.77 +actual = outer(0);
1.78 +expect = 1;
1.79 +addThis();
1.80 +
1.81 +status = inSection(3);
1.82 +actual = outer(5);
1.83 +expect = 6;
1.84 +addThis();
1.85 +
1.86 +
1.87 +/*
1.88 + * Sanity check: do same steps with the dynamic flag off
1.89 + */
1.90 +setDynamicScope(false);
1.91 +
1.92 +/*
1.93 + * Recompile the function |outer| via eval() in order to
1.94 + * feel the effect of the dynamic scope mode we have set.
1.95 + */
1.96 +eval(s);
1.97 +
1.98 +status = inSection(4);
1.99 +actual = outer(-5);
1.100 +expect = 1;
1.101 +addThis();
1.102 +
1.103 +status = inSection(5);
1.104 +actual = outer(0);
1.105 +expect = 1;
1.106 +addThis();
1.107 +
1.108 +status = inSection(6);
1.109 +actual = outer(5);
1.110 +expect = 6;
1.111 +addThis();
1.112 +
1.113 +
1.114 +
1.115 +//-----------------------------------------------------------------------------
1.116 +test();
1.117 +//-----------------------------------------------------------------------------
1.118 +
1.119 +
1.120 +
1.121 +function setDynamicScope(flag)
1.122 +{
1.123 + if (this.Packages)
1.124 + {
1.125 + var cx = this.Packages.org.mozilla.javascript.Context.getCurrentContext();
1.126 + cx.setCompileFunctionsWithDynamicScope(flag);
1.127 + }
1.128 +}
1.129 +
1.130 +
1.131 +function addThis()
1.132 +{
1.133 + statusitems[UBound] = status;
1.134 + actualvalues[UBound] = actual;
1.135 + expectedvalues[UBound] = expect;
1.136 + UBound++;
1.137 +}
1.138 +
1.139 +
1.140 +function test()
1.141 +{
1.142 + enterFunc('test');
1.143 + printBugNumber(BUGNUMBER);
1.144 + printStatus(summary);
1.145 +
1.146 + for (var i=0; i<UBound; i++)
1.147 + {
1.148 + reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
1.149 + }
1.150 +
1.151 + exitFunc ('test');
1.152 +}
