tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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regress-418641.js (2497B)

      1 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 //-----------------------------------------------------------------------------
      7 var BUGNUMBER = 418641;
      8 var summary = '++ and -- correctness';
      9 var actual = '';
     10 var expect = '';
     11 
     12 printBugNumber(BUGNUMBER);
     13 printStatus (summary);
     14 
     15 function get_pre_check(operand, op)
     16 {
     17  return "{\n"+
     18    "    "+operand+" = I;\n"+
     19    "    let tmp = "+op+op+operand+";\n"+
     20    "    if ("+operand+" !== Number(I) "+op+" 1)\n"+
     21    "        throw Error('"+op+op+operand+" case 1 for '+JSON.stringify(I));\n"+
     22    "    if (tmp !== "+operand+")\n"+
     23    "        throw Error('"+op+op+operand+" case 2 for '+JSON.stringify(I));\n"+
     24    "}\n";    
     25 }
     26 
     27 function get_post_check(operand, op)
     28 {
     29  return "{\n"+
     30    "    "+operand+" = I;\n"+
     31    "    let tmp = "+operand+op+op+";\n"+
     32    "    if ("+operand+" !== Number(I) "+op+" 1)\n"+
     33    "        throw Error('"+operand+op+op+" case 1 for '+JSON.stringify(I));\n"+
     34    "    if (tmp !== Number(I))\n"+
     35    "        throw Error('"+op+op+operand+" case 2 for '+JSON.stringify(I));\n"+
     36    "}\n";    
     37 }
     38 
     39 function get_check_source(operand)
     40 {
     41  return get_pre_check(operand, '+')+
     42    get_pre_check(operand, '-')+
     43    get_post_check(operand, '+')+
     44    get_post_check(operand, '-');
     45 }
     46 
     47 var arg_check = Function('I', 'a', get_check_source('a'));
     48 var let_check = Function('I', 'let a;'+get_check_source('a'));
     49 var var_check = Function('I', 'var a;'+get_check_source('a'));
     50 
     51 var my_name;
     52 var my_obj = {};
     53 var my_index = 0;
     54 var name_check = Function('I', get_check_source('my_name'));
     55 var prop_check = Function('I', get_check_source('my_obj.x'));
     56 var elem_check = Function('I', get_check_source('my_obj[my_index]'));
     57 
     58 var test_values = [0 , 0.5, -0.0, (1 << 30) - 1, 1 - (1 << 30)];
     59 
     60 for (let i = 0; i != test_values.length; i = i + 1) {
     61  let x = [test_values[i], String(test_values[i])];
     62  for (let j = 0; j != x.length; j = j + 1) {
     63    try
     64    {
     65      expect = actual = 'No Error';
     66      let test_value = x[j];
     67      arg_check(test_value, 0);
     68      let_check(test_value);
     69      var_check(test_value);
     70      name_check(test_value);
     71      prop_check(test_value);
     72      elem_check(test_value);
     73    }
     74    catch(ex)
     75    {
     76      actual = ex + '';
     77    }
     78    reportCompare(expect, actual, summary + ': ' + i + ', ' + j);
     79  }
     80 }