src/third_party/mozjs-45/js/src/tests/js1_4/Regress/function-002.js

/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */


/**
 *  File Name:          function-002.js
 *  Description:
 *
 * http://scopus.mcom.com/bugsplat/show_bug.cgi?id=330462
 * js> function f(a){var a,b;}
 *
 * causes an an assert on a null 'sprop' in the 'Variables' function in
 * jsparse.c This will crash non-debug build.
 *
 *  Author:      christine@netscape.com
 *  Date:           11 August 1998
 *  REVISED:   04 February 2001
 *  (changed  the comma expressions from trivial to  non-trivial)
 *  Author:      pschwartau@netscape.com
 *
 * Brendan: "The test seemed to require something that ECMA does not
 * guarantee, and that JS1.4 didn't either. For example, given
 *
 *             dec2 = "function f2(){1,2}";
 *
 * the engine is free to decompile a function object compiled from this source,
 * via Function.prototype.toString(), into some other string that compiles to
 * an equivalent function. The engine now eliminates the useless comma expression
 * 1,2, giving function f2(){}. This should be legal by the testsuite's lights."
 *
 */
var SECTION = "function-002.js";
var VERSION = "JS1_4";
var TITLE   = "Regression test case for 325843";
var BUGNUMBER="330462";

startTest();

writeHeaderToLog( SECTION + " "+ TITLE);

dec1 = "function f1(x,y){++x, --y}";
dec2 = "function f2(){var y; f1(1,2); y=new Date(); print(y.toString())}";

eval(dec1);
eval(dec2);

new TestCase(
  SECTION,
  "typeof f1",
  "function",
  typeof f1 );


// force a function decompilation
new TestCase(
  SECTION,
  "f1.toString() == dec1",
  true,
  StripSpaces(f1.toString()) == StripSpaces(dec1));

new TestCase(
  SECTION,
  "typeof f2",
  "function",
  typeof f2 );

// force a function decompilation

new TestCase(
  SECTION,
  "f2.toString() == dec2",
  true,
  StripSpaces(f2.toString().replace(/new Date\(\)/g, 'new Date')) ==
  StripSpaces(dec2.replace(/new Date\(\)/g, 'new Date')));

test();

function StripSpaces( s ) {
  var strippedString = "";
  for ( var currentChar = 0; currentChar < s.length; currentChar++ ) {
    if (!IsWhiteSpace(s.charAt(currentChar))) {
      strippedString += s.charAt(currentChar);
    }
  }
  return strippedString;
}

function IsWhiteSpace( string ) {
  var cc = string.charCodeAt(0);

  switch (cc) {
  case (0x0009):
  case (0x000B):
  case (0x000C):
  case (0x0020):
  case (0x000A):
  case (0x000D):
  case ( 59 ): // let's strip out semicolons, too
    return true;
    break;
  default:
    return false;
  }
}