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TAP::Parser::IteratorFactory(3pm) Perl Programmers Reference Guide TAP::Parser::IteratorFactory(3pm)

NAME

TAP::Parser::IteratorFactory - Internal TAP::Parser Iterator

VERSION

Version 3.17

SYNOPSIS

  use TAP::Parser::IteratorFactory;
  my $factory = TAP::Parser::IteratorFactory->new;
  my $iter = $factory->make_iterator(\*TEST);
  my $iter = $factory->make_iterator(\@array);
  my $iter = $factory->make_iterator(\%hash);
  my $line = $iter->next;

DESCRIPTION

This is a factory class for simple iterator wrappers for arrays, filehandles, and hashes. Unless you're subclassing, you probably won't need to use this module directly.

METHODS

Class Methods

"new"

Creates a new factory class. Note: You currently don't need to instantiate a factory in order to use it.

"make_iterator"

Create an iterator. The type of iterator created depends on the arguments to the constructor:

  my $iter = TAP::Parser::Iterator->make_iterator( $filehandle );

Creates a stream iterator (see "make_stream_iterator").

  my $iter = TAP::Parser::Iterator->make_iterator( $array_reference );

Creates an array iterator (see "make_array_iterator").

  my $iter = TAP::Parser::Iterator->make_iterator( $hash_reference );

Creates a process iterator (see "make_process_iterator").

"make_stream_iterator"

Make a new stream iterator and return it. Passes through any arguments given. Defaults to a TAP::Parser::Iterator::Stream.

"make_array_iterator"

Make a new array iterator and return it. Passes through any arguments given. Defaults to a TAP::Parser::Iterator::Array.

"make_process_iterator"

Make a new process iterator and return it. Passes through any arguments given. Defaults to a TAP::Parser::Iterator::Process.

SUBCLASSING

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

There are a few things to bear in mind when creating your own "ResultFactory":

1.
The factory itself is never instantiated (this may change in the future). This means that "_initialize" is never called.

Example

  package MyIteratorFactory;
  use strict;
  use vars '@ISA';
  use MyStreamIterator;
  use TAP::Parser::IteratorFactory;
  @ISA = qw( TAP::Parser::IteratorFactory );
  # override stream iterator
  sub make_stream_iterator {
    my $proto = shift;
    MyStreamIterator->new(@_);
  }
  1;

ATTRIBUTION

Originally ripped off from Test::Harness.

SEE ALSO

TAP::Object, TAP::Parser, TAP::Parser::Iterator, TAP::Parser::Iterator::Array, TAP::Parser::Iterator::Stream, TAP::Parser::Iterator::Process,

2009-06-12 perl v5.10.1