in reply to Re^2: writing a pragma
in thread writing a pragma

thanks for the answer. helped a lot. is there a way to write a module to work like strict. so that does something at compile time?

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Re^4: writing a pragma
by karthikasasanka (Acolyte) on Apr 26, 2014 at 03:33 UTC
    is there a way to write a module to work like strict. so that does something at compile time?
[reply]
      In Perl it is easy to do things at compile time. You have BEGIN for that.

      A different mater is changing how the program is compiled. perl provides some hooks for doing it, but AFAIK, it must be done at the C level and requires a pretty good knowledge of the internals. See perlguts.

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      That really depends on exactly what you want to do at compile time, doesn't it? Some things are easier than others.

      use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name
[reply]

        I want to write a pragma, which reads the contents of file where it is imported.

        1. use mypragma;

        2. use Data::Dumper;

        3. my $hash = {1,2,3,4,5,6}

        4. print Dumper $hash;

        I want to get the lines from 2,3,4 into the mypragma which was loaded into memory for this program.

        I am not sure that this is possible, I just want to try.

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