in reply to Simple OO

If this code fragment is really in a single file, then you don't need   use sheep; Since the 'sheep' package is already in the symbol table. use is a bit confusing that way. The argument refers to a file, not a package. You have to trust that the file being use'd actually defines a package of the same name.

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Re: Re: Simple OO
by lzcd (Pilgrim) on Feb 12, 2002 at 06:59 UTC
    Without the use statement I get: 
    No such class wolf at demo.pl line 22, near "my wolf"
syntax error at demo.pl line 22, near "my wolf="

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      You're missing some $'s ...

      my $wolf=new sheep;
print $wolf->bleet()."\n";

          --k.


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        This, and you need ref($proto) not ref{$proto} (parentheses not braces).

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      Without the use statement I get: 
      No such class wolf at demo.pl line 22, near "my wolf"
syntax error at demo.pl line 22, near "my wolf="

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      The reason for this error message is a bit more obscure. (It has to do with something called "indirect object syntax".) However, the error goes away if turn the bareword wolf into the scalar $wolf. 
        my $wolf=new sheep;
     ^

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      I suspect this is what you had in mind.

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        Obviously my brain is feeling unpunctuated today. Thank you all for the $help. Sorry to be a pain but any ideas on why I get a 
        Can't locate object method "bleet" via package "HASH" at demo.pl line 
+23.

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        ? (Is this my cargo finally coming home?)
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