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TAP::Parser::IteratorFactory

Perl 5 version 12.2 documentation
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TAP::Parser::IteratorFactory

NAME

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

VERSION

Version 3.17

SYNOPSIS

  1.   use TAP::Parser::IteratorFactory;
  2.   my $factory = TAP::Parser::IteratorFactory->new;
  3.   my $iter = $factory->make_iterator(\*TEST);
  4.   my $iter = $factory->make_iterator(\@array);
  5.   my $iter = $factory->make_iterator(\%hash);
  7.   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:

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

Creates a stream iterator (see make_stream_iterator).

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

Creates an array iterator (see make_array_iterator).

  1.   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

  1.   package MyIteratorFactory;
  3.   use strict;
  4.   use vars '@ISA';
  6.   use MyStreamIterator;
  7.   use TAP::Parser::IteratorFactory;
  9.   @ISA = qw( TAP::Parser::IteratorFactory );
  11.   # override stream iterator
  12.   sub make_stream_iterator {
  13.     my $proto = shift;
  14.     MyStreamIterator->new(@_);
  15.   }
  17.   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,

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