SYNOPSIS
use TAP::Parser::ResultFactory;
my $token = {...};
my $factory = TAP::Parser::ResultFactory->new;
my $result = $factory->make_result( $token );
VERSION
Version 3.36DESCRIPTION
This is a simple factory class which returns a TAP::Parser::Result subclass representing the current bit of test data from TAP (usually a single line). It is used primarily by TAP::Parser::Grammar. 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_result"
Returns an instance the appropriate class for the test token passed in.
my $result = TAP::Parser::ResultFactory->make_result($token);
Can also be called as an instance method.
"class_for"
Takes one argument: $type. Returns the class for this $type, or "croak"s with an error.
"register_type"
Takes two arguments: $type, $class
This lets you override an existing type with your own custom type, or register a completely new type, eg:
# create a custom result type: package MyResult; use strict; use base 'TAP::Parser::Result'; # register with the factory: TAP::Parser::ResultFactory->register_type( 'my_type' => __PACKAGE__ ); # use it: my $r = TAP::Parser::ResultFactory->( { type => 'my_type' } );
Your custom type should then be picked up automatically by the TAP::Parser.
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.
- 2.
- "TAP::Parser::Result->new" is never called, $tokens are reblessed. This will change in a future version!
- 3.
-
TAP::Parser::Result subclasses will register themselves with
TAP::Parser::ResultFactory directly:
package MyFooResult; TAP::Parser::ResultFactory->register_type( foo => __PACKAGE__ );
Of course, it's up to you to decide whether or not to ignore them.
Example
package MyResultFactory; use strict; use MyResult; use base 'TAP::Parser::ResultFactory'; # force all results to be 'MyResult' sub class_for { return 'MyResult'; } 1;