Wikipedia says

The term delegation is also used loosely for various other relationships between objects; see delegation (programming) for more. Frequently confused concepts are simply using another object, more precisely referred to as consultation or aggregation; and evaluating a member on one object by evaluating the corresponding member on another object, notably in the context of the receiving object, which is more precisely referred to as forwarding (when a wrapper object doesn't pass itself to the wrapped object).12a The delegation pattern is a software design pattern for implementing delegation, though this term is also used loosely for consultation or forwarding.

I saw this already.

But if Moose claims to implement the generalized term for all "loosely" related concepts, then it should also implement the specialized core meaning.

Did I miss a possibility to use having such that the method is called with the original $self?

If yes please show me how. *

It's like organizing "Pan-American Games" for Argentines and Canadians and excluding US Americans.

> but as that terminology and use is far from uncommon

In PHP and some other languages it's common to use "closure" synonymous for "anonymous function".

I call this bullshit, because neither is every anno function closing over variables from an outer scope nor are named functions excluded from being closures.

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}

update

To avoid misunderstandings, I prefer Forwarding over Delegation, it's much easier to handle.

But it seems that Perl 6 is the source of this terminology, and that Moose just copied the concept.

update

*) does currying allow to change $self?

> might be considered imprecise by Wikipedia

I'm considering the Design Pattern book by the GoF as normative source, and tried to find their original definition.

And hey there is indeed a stack overflow discussion citing the books passage. ..

https://stackoverflow.com/questions/47691683/can-you-write-gof-delegation-code-examples

Alas the description is contradictory and the main reply cites ... Wikipedia. Oo

The first paragraph says that self is passed thru like in inheritance.

The second describes how the request is "forwarded". And the UML clearly shows that Rectangle->area() is returned.

WTF? ... CS is a mess!

update

See also The Gang of Four is wrong and you don't understand delegation

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}

So, the Perl Moo* equivalent would be something like

package My::Obj;
use Moo;
has deputy => (is => 'ro', delegates => 'frobnicate');
[download]

where calling $obj->frobnicate(42); would in fact call

$obj->deputy->can('frobnicate')->($obj, 42);
[download]

?
map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]