Re: How to best pass on the context / wantarray?

[dragonchild]

in reply to How to best pass on the context / wantarray?

DBM::Deep does the following which is inspired by CGI's self_or_default()

sub floober {
    my $self = shift->_get_self;

    # Do stuff here with the actual object from tied() as opposed to t
+he potentially
    # blessed item that is tied.
}

It's a method because this allows me to overload how to get to the tied method in either DBM::Deep::Array or DBM::Deep::Hash.

[Corion]

Something like this was my first idea too, but that doesn't preserve the calling context - wantarray will always be defined in ->_get_self. jdporter's method would solve that problem of course, by inspecting the context one calling level higher.

[dragonchild]

I don't think you want the calling context thing. I've been trying to figure out how I would use your proposed API and all it's doing is confusing me. Grandfather said it right.

[tye]

_get_self() doesn't need to have the same context as its caller, it just needs to know the context of its caller. So it is as simple as:

    my $self= shift(@_)->_get_self( wantarray );