How can I make all lazy Moose features be built?

Question

I have a bunch of lazy features in a Moose object.

Some of the builders require some time to finish.

I would like to nvoke all the builders (the dump the "bomplete" object). Can I make all the lazy features be built at once, or must I call each feature manually to cause it builder to run?

Answer 1

If you want to have "lazy" attributes with builders, but ensure that their values are constructed before new returns, the usual thing to do is to call the accessors in BUILD.

sub BUILD {
    my ($self) = @_;

    $self->foo;
    $self->bar;
}

is enough to get the job done, but it's probably best to add a comment as well explaining this apparently useless code to someone who doesn't know the idiom.