You are viewing the version of this documentation from Perl 5.12.2. View the latest version

CONTENTS

NAME

TAP::Parser::Source::Perl - Stream Perl output

VERSION

Version 3.17

SYNOPSIS

use TAP::Parser::Source::Perl;
my $perl = TAP::Parser::Source::Perl->new;
my $stream = $perl->source( [ $filename, @args ] )->get_stream;

DESCRIPTION

Takes a filename and hopefully returns a stream from it. The filename should be the name of a Perl program.

Note that this is a subclass of TAP::Parser::Source. See that module for more methods.

METHODS

Class Methods

new

my $perl = TAP::Parser::Source::Perl->new;

Returns a new TAP::Parser::Source::Perl object.

Instance Methods

source

Getter/setter the name of the test program and any arguments it requires.

my ($filename, @args) = @{ $perl->source };
$perl->source( [ $filename, @args ] );

croaks if $filename could not be found.

switches

my $switches = $perl->switches;
my @switches = $perl->switches;
$perl->switches( \@switches );

Getter/setter for the additional switches to pass to the perl executable. One common switch would be to set an include directory:

$perl->switches( ['-Ilib'] );

get_stream

my $stream = $source->get_stream($parser);

Returns a stream of the output generated by executing source. Must be passed an object that implements a make_iterator method. Typically this is a TAP::Parser instance.

shebang

Get the shebang line for a script file.

my $shebang = TAP::Parser::Source::Perl->shebang( $some_script );

May be called as a class method

get_taint

Decode any taint switches from a Perl shebang line.

# $taint will be 't'
my $taint = TAP::Parser::Source::Perl->get_taint( '#!/usr/bin/perl -t' );

# $untaint will be undefined
my $untaint = TAP::Parser::Source::Perl->get_taint( '#!/usr/bin/perl' );

SUBCLASSING

Please see "SUBCLASSING" in TAP::Parser for a subclassing overview.

Example

  package MyPerlSource;

  use strict;
  use vars '@ISA';

  use Carp qw( croak );
  use TAP::Parser::Source::Perl;

  @ISA = qw( TAP::Parser::Source::Perl );

  sub source {
      my ($self, $args) = @_;
      if ($args) {
	  $self->{file} = $args->[0];
	  return $self->SUPER::source($args);
      }
      return $self->SUPER::source;
  }

  # use the version of perl from the shebang line in the test file
  sub _get_perl {
      my $self = shift;
      if (my $shebang = $self->shebang( $self->{file} )) {
          $shebang =~ /^#!(.*\bperl.*?)(?:(?:\s)|(?:$))/;
	  return $1 if $1;
      }
      return $self->SUPER::_get_perl(@_);
  }

SEE ALSO

TAP::Object, TAP::Parser, TAP::Parser::Source,