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Re: Style Point: Catching eval { } errors

by Abigail-II (Bishop)
on Nov 24, 2003 at 22:26 UTC ( #309722=note: print w/replies, xml ) Need Help??


in reply to Style Point: Catching eval { } errors

Considering that Perl came first, shouldn't Java programmers adapt their style to make Perl programmers feel home?

Abigail

  • Comment on Re: Style Point: Catching eval { } errors

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Re: Re: Style Point: Catching eval { } errors
by hardburn (Abbot) on Nov 25, 2003 at 14:47 UTC

    Good ideas can come from otherwise crappy languages. I think Java-style exception handling was a really good idea that Perl can almost (but not quite) do without using modules. With modules like Exception, you can get 90% of what Java has. You can get closer with Error, but it has other problems.

    ----
    I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
    -- Schemer

    : () { :|:& };:

    Note: All code is untested, unless otherwise stated

      You mentioned Error.pm having problems a couple of times - can you be a bit more specific about the particulars of these problems?

      I find myself using Error.pm quite a bit in web applications, and would be quite interested to know.

        This node puts it far better than I could.

        ----
        I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
        -- Schemer

        : () { :|:& };:

        Note: All code is untested, unless otherwise stated

      You can get closer with Error, but it has other problems.

      Given than Exception uses closures like Error I doubt it doesn't have these "other" problems too. The main problem is that currently the only way to add try/catch syntax to Perl without core changes it is to use closures what may cause memory leaks if you are not careful.

      --
      Ilya Martynov, ilya@iponweb.net
      CTO IPonWEB (UK) Ltd
      Quality Perl Programming and Unix Support UK managed @ offshore prices - http://www.iponweb.net
      Personal website - http://martynov.org

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