Re: Moose 'clone' Constructor


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Re: Moose 'clone' Constructor

by Corion (Patriarch)

on Jul 04, 2018 at 07:56 UTC ( [id://1217860]=note: print w/replies, xml )

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in reply to Moose 'clone' Constructor

I see MooseX::Clone, which implements more cloning support, but alludes to some bare-bones cloning support in Moose. If I read the discussion right, cloning in Moose is just:

bless { %$old }, ref $old;
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... but I don't know if there is a default constructor ->clone() provided.

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Re^2: Moose 'clone' Constructor
by kcott (Archbishop) on Jul 04, 2018 at 10:40 UTC

G'day Corion,

++ Thanks for that. MooseX::Clone looks interesting. Its abstract does say "Fine-grained cloning support", and it looks like there could be a fair bit of work setting this up. Perhaps useful in situations where specific custom cloning was wanted. I also note a TODO section: I tend to be a bit wary of those as it suggests incomplete functionality — might wait for that to become TODONE. :-)

With a bit of link-hopping from there, I came across "Class::MOP::Class - Object instance construction and cloning". The clone_object() method appears less fine-grained (than MooseX::Clone) and perhaps more useful as a general solution.

Both of those have example code for setting up a clone() method in your own class.

As I said in the OP, not an immediate requirement but I'll keep both of those in mind. Thanks again.

— Ken

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