Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??


Given two coderefs. Is there an (elegant) way to compare the code they're pointing to?

No, I don't need any fancy stuff like solving the halting problem. ;-) I do not even need to know if the code is equivalent. It would be completely sufficient if these

my $cr1 = sub { $foo = $bar * $baz; } my $cr2 = sub { $foo = $bar * $baz; }

Would be considered "same". Ideally with the whitespaces being irrelevant. All mutations, invariants etc. can safely be considered 'different'. i.e.

my $cr3 = sub { $mul = $op1 * $op2; } my $cr4 = sub { $foo = $baz * $bar; }

To sum up: It would be sufficient to have a function that - for two given coderefs (pointing to different addresses) - would just return "identic" if they'd be the same list of opcodes.

Howto? B:: something?

Thank you for your guidance.

    All Perl:   MT, NLP, NLU

In reply to Compare CODE by PetaMem

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others studying the Monastery: (4)
    As of 2015-11-26 23:38 GMT
    Find Nodes?
      Voting Booth?

      What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

      Results (710 votes), past polls