I'm not sure you mean by create a subclass instance on creation of its superclass. Are you intending to have the superclass object have an attribute that holds an instance of the subclass? Perhaps can you show a diagram of what you intend your data to look like after construction is complete?
On Mon, Apr 23, 2018 at 7:53 AM, Arjan Widlak - United Knowledge < ar...@unitedknowledge.nl> wrote: > Hi, > > I tried to use the BUILD method to create an instance of a subclass on > creating an instance of the parent. This does not work and the > documentation clearly explains why: > > http://search.cpan.org/dist/Moose/lib/Moose/Manual/Construct > ion.pod#BUILD_and_parent_classes > > BUILD methods are called from parent to child and hence this triggers a > loop. > > I am able to do this with the around method modifier, however I need to > override the behaviour in the subclass. This is also seems error prone and > bad practice. > > But if this cannot be done this way, how should it be done? How can I > always create a subclass instance on creation of it's superclass? > > Kind regards, > > Arjan >
