Friday Refactor

It’s Friday, so a long post is not in order. With that in mind, a simple refactor for your pattern matching skulls and skills:

before:

my @files = File::Find::Rule->file()->name('*.t')
   ->maxdepth( 1 )->in(
      File::Spec->catdir(
         $self->get_directory, 't'
   ) );

my @total_results;

foreach my $file (@files) {
   push @total_results,
      "<span class="file">$file</span>";
   push @total_results,
      @{ $self->test( $file ) };
}
return join "\n", @total_results;

Do you see what I see? We’re iterating over a list and generating a new list… And then we are just doing a join on that. Enjoy the nice and functional rewrite.

after:

return join "\n", map {
   ( "<span class="file">$_</span>",
      @{ $self->test( $_ ) } );
} File::Find::Rule->file()->name('*.t')
   ->maxdepth( 1 )->in(
      File::Spec->catdir(
         $self->get_directory, 't'
   ) )

Posted Sat, May 9, 2009

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