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Manual Reference Pages  -  FOREST::TREE::BUILDER (3)

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NAME

Forest::Tree::Builder - An abstract role for bottom up tree reader

CONTENTS

SYNOPSIS



    package MyBuilder;
    use Moose;

    with qw(Forest::Tree::Builder);

    # implement required builder:

    sub _build_subtrees {
        return [
            $self->create_new_subtree( ... ), # probably a recursive process
        ];
    }


    my $builder = MyBuilder->new(
        tree_class => ...,
        ...
    );

    my $tree = $builder->tree;



DESCRIPTION

Forest::Tree::Builder replaces Forest::Tree::Loader and Forest::Tree::Reader with a bottom up construction approach, which is also suitable for constructing Forest::Tree::Pure derived trees without excessive cloning.

It provides a declarative API instead of an imperative one, where tree is lazily constructed on the first use, instead of being constructed immediately and filled in by the load method.

METHODS

create_new_subtree Implemented by Forest::Tree::Constructor
_build_tree Constructs a root node by using the top level subtrees list as the children.
_build_subtrees Build the subtrees.

Abstract method that should return an array ref of Forest::Tree::Pure derived objects.

SEE ALSO

Forest::Tree::Builder::SimpleTextFile

BUGS

All complex software has bugs lurking in it, and this module is no exception. If you find a bug please either email me, or add the bug to cpan-RT.

AUTHOR

Yuval Kogman

COPYRIGHT AND LICENSE

Copyright 2008-2014 Infinity Interactive, Inc.

<http://www.iinteractive.com>

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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perl v5.20.3 FOREST::TREE::BUILDER (3) 2013-12-18

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