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Re: eval question

by eyepopslikeamosquito (Canon)
on Jan 06, 2011 at 20:17 UTC ( #880931=note: print w/ replies, xml ) Need Help??


in reply to eval question

Be aware that most Perl experts discourage the use of string eval. For example:

  • merlyn in •Re^2: Dynamically constructed function calls states: Do not resort to eval-string if other means are available. You're firing up the compiler (slower than almost any other solution), and exposing yourself to hard to debug and hard to secure practices.
  • In this quiz of the week MJD states: A good rule of thumb is that unless what you're trying to do is most clearly described as "compile and run arbitrary Perl code", it's probably a mistake to use 'eval' to do it.
  • Perl Best Practices, Chapter 8, has a guideline titled: Avoid string eval. Conway argues that string eval can be slow; produces run time warnings rather than more desirable compile time warnings; and code that generates other code tends to be harder to maintain.


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