NAME Tree::From::Struct - Build a tree object from hash structure VERSION This document describes version 0.041 of Tree::From::Struct (from Perl distribution Tree-From-Struct), released on 2021-05-06. SYNOPSIS In your tree node class My/Person.pm: package My::Person; sub new { my $class = shift; my %args = @_; bless \%args, $class; } sub parent { my $self = shift; $self->{_parent} = $_[0] if $@; $self->{_parent}; } sub children { my $self = shift; $self->{_children} = $_[0] if $@; $self->{_children}; } In your code to build a tree: use Tree::From::Struct qw(build_tree_from_struct); # require all the used classes use My::Person; use My::MarriedPerson; use My::KidPerson; my $family_tree = build_tree_from_struct({ _class => 'My::Person', name => 'Andi', age => 60, _children => [ {name => 'Budi', age => 30}, {_class => 'My::MarriedPerson', name => 'Cinta', _children => [ {class => 'My::KidPerson', name => 'Deni'}, {class => 'My::KidPerson', name => 'Eno'}, ]}, ]}); This tree is visualized as follows: Andi ├─Budi └─Cinta ├─Deni └─Eno DESCRIPTION Building a tree manually can be tedious: you have to connect the parent and the children nodes together: my $root = My::TreeNode->new(...); my $child1 = My::TreeNode->new(...); my $child2 = My::TreeNode->new(...); $root->children([$child1, $child2]); $child1->parent($root); $child2->parent($root); my $grandchild1 = My::TreeNode->new(...); ... This module provides a convenience function to build a tree of objects in a single command. It connects the parent and children nodes for you. The class can be any class that provides "parent" and "children" methods. See Role::TinyCommons::Tree::Node for more details. FUNCTIONS build_tree_from_struct($struct) => obj This is basically Role::TinyCommons::Tree::FromStruct's "new_from_struct" presented as a function. See the role's documentation for more details on what you can put in $struct. HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . BUGS Please report any bugs or feature requests on the bugtracker website When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. SEE ALSO Role::TinyCommons::Tree::FromStruct if you want to use this functionality via consuming a role. Another way to create tree from a nested array of objects: Tree::From::ObjArray. Other ways to create tree: Tree::From::Text, Tree::From::TextLines, Tree::Create::Callback, Tree::Create::Size. AUTHOR perlancar COPYRIGHT AND LICENSE This software is copyright (c) 2021 by perlancar@cpan.org. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.