# phpman > info > TAP::Parser::SourceHandler::Executable

[TAP::Parser::SourceHandPerl](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandPerl/markdown):[ProgrTAP::Parser::SourceHandler](https://www.chedong.com/phpMan.php/perldoc/ProgrTAP%3A%3AParser%3A%3ASourceHandler/markdown)::[Executable(3perl)](https://www.chedong.com/phpMan.php/man/Executable/3perl/markdown)

NAME
       [TAP::Parser::SourceHandler::Executable](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AExecutable/markdown) - Stream output from an
       executable TAP source

VERSION
       Version 3.43

SYNOPSIS
         use [TAP::Parser::Source](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASource/markdown);
         use [TAP::Parser::SourceHandler::Executable](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AExecutable/markdown);

         my $source = [TAP::Parser::Source](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASource/markdown)->new->raw(['/usr/bin/ruby', 'mytest.rb']);
         $source->assemble_meta;

         my $class = '[TAP::Parser::SourceHandler::Executable](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AExecutable/markdown)';
         my $vote  = $class->can_handle( $source );
         my $iter  = $class->make_iterator( $source );

DESCRIPTION
       This is an executable [TAP::Parser::SourceHandler](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler/markdown) - it has 2 jobs:

       1. Figure out if the [TAP::Parser::Source](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASource/markdown) it's given is an executable
          command ("can_handle").

       2. Creates an iterator for executable commands ("make_iterator").

       Unless you're writing a plugin or subclassing [TAP::Parser](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser/markdown), you probably
       won't need to use this module directly.

METHODS
   Class Methods
       "can_handle"

         my $vote = $class->can_handle( $source );

       Only votes if $source looks like an executable file. Casts the
       following votes:

         0.9  if it's a hash with an 'exec' key
         0.8  if it's a .bat file
         0.75 if it's got an execute bit set

       "make_iterator"

         my $iterator = $class->make_iterator( $source );

       Returns a new [TAP::Parser::Iterator::Process](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3AIterator%3A%3AProcess/markdown) for the source.
       "$source->raw" must be in one of the following forms:

         { exec => [ @exec ] }

         [ @exec ]

         $file

       "croak"s on error.

       "iterator_class"

       The class of iterator to use, override if you're sub-classing.
       Defaults to [TAP::Parser::Iterator::Process](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3AIterator%3A%3AProcess/markdown).

SUBCLASSING
       Please see "SUBCLASSING" in [TAP::Parser](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser/markdown) for a subclassing overview.

   Example
         package MyRubySourceHandler;

         use strict;

         use Carp qw( croak );
         use [TAP::Parser::SourceHandler::Executable](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AExecutable/markdown);

         use base '[TAP::Parser::SourceHandler::Executable](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AExecutable/markdown)';

         # expect $handler->(['mytest.rb', 'cmdline', 'args']);
         sub make_iterator {
           my ($self, $source) = @_;
           my @test_args = @{ $source->test_args };
           my $rb_file   = $test_args[0];
           croak("error: Ruby file '$rb_file' not found!") unless (-f $rb_file);
           return $self->[SUPER::raw_source](https://www.chedong.com/phpMan.php/perldoc/SUPER%3A%3Arawsource/markdown)(['/usr/bin/ruby', @test_args]);
         }

SEE ALSO
       [TAP::Object](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AObject/markdown), [TAP::Parser](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser/markdown), [TAP::Parser::IteratorFactory](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3AIteratorFactory/markdown),
       [TAP::Parser::SourceHandler](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler/markdown), [TAP::Parser::SourceHandler::Perl](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3APerl/markdown),
       [TAP::Parser::SourceHandler::File](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AFile/markdown), [TAP::Parser::SourceHandler::Handle](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3AHandle/markdown),
       [TAP::Parser::SourceHandler::RawTAP](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler%3A%3ARawTAP/markdown)

perl v5.34.0                     [TAP::Parser::SourceHandler](https://www.chedong.com/phpMan.php/perldoc/TAP%3A%3AParser%3A%3ASourceHandler/markdown)::[Executable(3perl)](https://www.chedong.com/phpMan.php/man/Executable/3perl/markdown)