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Groups > comp.lang.javascript > #9744

Re: Simulate goto

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On 28.12.2011 19:10, Thomas 'PointedEars' Lahn wrote:
> John G Harris wrote:
>
>> Thomas 'PointedEars' Lahn wrote:
>>> Tom de Neef wrote:
>>>> The error may have more to do with 'continue' than with the label.
>>>> Check where you can use a continue statement - I think it is restricted
>>>> to for- and while- loops.
>>> You are mistaken.  The `continue' statement, like the Labelled Statement
>>> is just another /Statement/, and it can be located anywhere in a
>>> /Program/:
>>
>> Now look at section 12.7 of ECMAScript 262, 5.1 Edition, at the text
>> following
>>     "A program is considered syntactically incorrect if either of
>>      the following is true:"
>> which disagrees with you.
>
> No, but it disagrees with the implications of my statement regarding this
> problem.  A `continue' statement *can* be located anywhere in a /Program/.
> However, there are restrictions as to location of the label that may be
> referred by the optional /Identifier/.
>
> AIUI, it should be possible to use an enclosing /Statement/ (like a /Block/
> statement) and a `break' statement here (section 12.8):
>
>    function testGoto()
>    {
>      var isFirst = true;
>      if (true)
>      {
> skipPoint:
>        window.alert("Using goto\n");
>
>        if (isFirst)
>        {
>          isFirst = false;
>          break skipPoint;
>          window.alert("This part is skipped");
>        }
>      }
>    }
>
> However, Google V8 3.5.10.9+ in Chromium 15.0.874.121 (Developer Build
> 109964 Linux) considers that a syntax error as well (same error message:
> "SyntaxError: Undefined label 'skipPoint'").  Is this a bug?
>

No.
Why should it work?
I think there is slight confusion as to what it means for a statement to 
be 'enclosing' another.

-- 
Jake Jarvis

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Simulate goto Archos <raul.san@sent.com> - 2011-12-27 01:19 -0800
  Re: Simulate goto Archos <raul.san@sent.com> - 2011-12-27 01:50 -0800
    Re: Simulate goto Archos <raul.san@sent.com> - 2011-12-27 02:09 -0800
      Re: Simulate goto Erwin Moller <Since_humans_read_this_I_am_spammed_too_much@spamyourself.com> - 2011-12-27 11:31 +0100
  Re: Simulate goto "Tom de Neef" <tdeneef@qolor.nl> - 2011-12-27 12:12 +0100
    Re: Simulate goto Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-12-27 18:27 +0100
      Re: Simulate goto John G Harris <john@nospam.demon.co.uk> - 2011-12-28 16:56 +0000
        Re: Simulate goto Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-12-28 19:10 +0100
          Re: Simulate goto Jake Jarvis <pig_in_shoes@yahoo.com> - 2011-12-28 23:18 +0100
            Re: Simulate goto Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-12-29 12:18 +0100
              Re: Simulate goto John G Harris <john@nospam.demon.co.uk> - 2011-12-29 16:31 +0000
                Re: Simulate goto Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-12-29 17:47 +0100
                Re: Simulate goto John G Harris <john@nospam.demon.co.uk> - 2011-12-30 11:04 +0000
                Re: Simulate goto Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-12-30 16:10 +0100
  Re: Simulate goto John G Harris <john@nospam.demon.co.uk> - 2011-12-27 14:41 +0000
  Re: Simulate goto Denis McMahon <denismfmcmahon@gmail.com> - 2011-12-27 15:32 +0000
    Re: Simulate goto Gene Wirchenko <genew@ocis.net> - 2011-12-27 10:12 -0800
      Re: Simulate goto "Evertjan." <exjxw.hannivoort@interxnl.net> - 2011-12-27 19:55 +0000
        Re: Simulate goto Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2011-12-27 21:49 +0100
          Re: Simulate goto Denis McMahon <denismfmcmahon@gmail.com> - 2011-12-27 23:07 +0000
          Re: Simulate goto John G Harris <john@nospam.demon.co.uk> - 2011-12-28 16:28 +0000
            Re: Simulate goto Nomen Nescio <nobody@dizum.com> - 2011-12-28 22:33 +0100
        Re: Simulate goto Gene Wirchenko <genew@ocis.net> - 2011-12-27 13:19 -0800
          Re: Simulate goto "Evertjan." <exjxw.hannivoort@interxnl.net> - 2011-12-27 22:02 +0000
            Re: Simulate goto Tim Streater <timstreater@greenbee.net> - 2011-12-27 22:18 +0000
              Re: Simulate goto Mike Duffy <Use_guestbook_page@website.in.sig> - 2011-12-28 00:23 +0000
                Re: Simulate goto John G Harris <john@nospam.demon.co.uk> - 2011-12-28 16:37 +0000
                Re: Simulate goto Tim Streater <timstreater@greenbee.net> - 2011-12-28 17:44 +0000
                Re: Simulate goto Mike Duffy <Use_guestbook_page@website.in.sig> - 2011-12-29 01:16 +0000
                Re: Simulate goto Gene Wirchenko <genew@ocis.net> - 2011-12-28 17:34 -0800
                Re: Simulate goto "Evertjan." <exjxw.hannivoort@interxnl.net> - 2011-12-29 08:27 +0000
                Re: Simulate goto Dr J R Stockton <reply1152@merlyn.demon.co.uk> - 2011-12-30 20:54 +0000
                Re: Simulate goto Tim Streater <timstreater@greenbee.net> - 2011-12-31 11:55 +0000
            Re: Simulate goto Gene Wirchenko <genew@ocis.net> - 2011-12-27 14:50 -0800

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