1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* ***** BEGIN LICENSE BLOCK *****
3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 * The contents of this file are subject to the Mozilla Public License Version
6 * 1.1 (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 * http://www.mozilla.org/MPL/
10 * Software distributed under the License is distributed on an "AS IS" basis,
11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 * for the specific language governing rights and limitations under the
15 * The Original Code is JavaScript Engine testing utilities.
17 * The Initial Developer of the Original Code is
19 * Portions created by the Initial Developer are Copyright (C) 2007
20 * the Initial Developer. All Rights Reserved.
22 * Contributor(s): Igor Bukanov
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25 * either the GNU General Public License Version 2 or later (the "GPL"), or
26 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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38 var gTestfile = 'regress-418641.js';
39 //-----------------------------------------------------------------------------
40 var BUGNUMBER = 418641;
41 var summary = '++ and -- correctness';
45 printBugNumber(BUGNUMBER);
46 printStatus (summary);
48 function get_pre_check(operand, op)
51 " "+operand+" = I;\n"+
52 " let tmp = "+op+op+operand+";\n"+
53 " if ("+operand+" !== Number(I) "+op+" 1)\n"+
54 " throw Error('"+op+op+operand+" case 1 for '+uneval(I));\n"+
55 " if (tmp !== "+operand+")\n"+
56 " throw Error('"+op+op+operand+" case 2 for '+uneval(I));\n"+
60 function get_post_check(operand, op)
63 " "+operand+" = I;\n"+
64 " let tmp = "+operand+op+op+";\n"+
65 " if ("+operand+" !== Number(I) "+op+" 1)\n"+
66 " throw Error('"+operand+op+op+" case 1 for '+uneval(I));\n"+
67 " if (tmp !== Number(I))\n"+
68 " throw Error('"+op+op+operand+" case 2 for '+uneval(I));\n"+
72 function get_check_source(operand)
74 return get_pre_check(operand, '+')+
75 get_pre_check(operand, '-')+
76 get_post_check(operand, '+')+
77 get_post_check(operand, '-');
80 var arg_check = Function('I', 'a', get_check_source('a'));
81 var let_check = Function('I', 'let a;'+get_check_source('a'));
82 var var_check = Function('I', 'var a;'+get_check_source('a'));
87 var name_check = Function('I', get_check_source('my_name'));
88 var prop_check = Function('I', get_check_source('my_obj.x'));
89 var elem_check = Function('I', get_check_source('my_obj[my_index]'));
91 var test_values = [0 , 0.5, -0.0, (1 << 30) - 1, 1 - (1 << 30)];
93 for (let i = 0; i != test_values.length; i = i + 1) {
94 let x = [test_values[i], String(test_values[i])];
95 for (let j = 0; j != x.length; j = j + 1) {
98 expect = actual = 'No Error';
99 let test_value = x[j];
100 arg_check(test_value, 0);
101 let_check(test_value);
102 var_check(test_value);
103 name_check(test_value);
104 prop_check(test_value);
105 elem_check(test_value);
111 reportCompare(expect, actual, summary + ': ' + i + ', ' + j);