Object::PadX::Role::AutoMarshal This role adds an ADJUST sub that reads the MarshalTo attributes to try to instantiate new objects with the listed class. It doesn't require that the subobjects to be made with Object::Pad but it does require the constructor to be expecting all parameters as a hash, not a hashref or positional arguments. CAVEATS * This module is VERY opinionated. All constructors of sub-objects must be expecting a hash as their only input. * It only handles fields at object creation time. Assignment later does not get considered, so you can overwrite the field with a different type/class. * IT DOES NOT CHECK TYPES. Do not use this module if you are expecting type checking. * It relies on experimental APIs and will likely break. IMPORTS use Object::PadX::Role::AutoMarshal '-toplevel'; class Foo :does(AutoMarshal) { ... } This is the only import right now, it creates a top level namespace role AutoJSON for lazy people (like me). This is a bad idea, don't do it it pollutes this globally since there is no such thing as lexical role imports. ATTRIBUTES * :MarshalTo(ClassName) Set the type of object to be instantiated during object creation. It'll get called as "ClassName->new($field_value->%*)", expecting the field to have been set with a hashref on the original ->new call to your class. * :MarshalTo([ClassName]) Create this as an array ref of ClassName objects. It'll iterate through the field value as an array ref and call "ClassName->new($element->%*)". All elements of the array are expected to be hash-refs that will be dereferenced for creating the subobjects. * :MarshalTo({ClassName}) Create this as a hash ref of ClassName objects. It'll iterate through the field value as an hash setting each $key and call "ClassName->new($value->%*)" for each value. All elements of the top level hash-ref are expected to be hash-refs that will be dereferenced for creating the subobjects. INSTALLATION This is a Perl module distribution. It should be installed with whichever tool you use to manage your installation of Perl, e.g. any of cpanm . cpan . cpanp -i . Consult http://www.cpan.org/modules/INSTALL.html for further instruction. Should you wish to install this module manually, the procedure is perl Makefile.PL make make test make install LICENSE This module is available under the Artistic 2.0 License