Yet another implementation of an anonymous class with per object overrideable methods, but with the added
attraction of sort of working dispatch to the parent class's method.
METHODSnewHASH
Takes a hash like argument list with the following keys.
parent
The name of the parent class. Note that you can only get single inheritance with this or SUPER
won't work.
methods
A hash, keys are method names, values are CODEREFs.
constructor
The name of the constructor method. Defaults to 'new'.
args
An anonymous array of arguments to pass to the constructor. Defaults to an empty list.
Returns an object in an 'anonymous' class which inherits from the parent class. This anonymous class
has a couple of 'extra' methods:
SUPER
If you were to pass something like
$obj = Class::Inner->new(
parent => 'Parent',
methods => { method => sub { ...; $self->SUPER::method(@_) } },
);
then "$self-"gt"SUPER::method" almost certainly wouldn't do what you expect, so we provide the
"SUPER" method which dispatches to the parent implementation of the current method. There seems
to be no good way of getting the full "SUPER::" functionality, but I'm working on it.
DESTROY
Because Class::Inner works by creating a whole new class name for your object, it could
potentially leak memory if you create a lot of them. So we add a "DESTROY" method that removes
the class from the symbol table once it's finished with.
If you need to override a parent's DESTROY method, adding a call to
"Class::Inner::clean_symbol_table(ref $self)" to it. Do it at the end of the method or your other
method calls won't work.
clean_symbol_table
The helper subroutine that DESTROY uses to remove the class from the symbol table.
new_classname
Returns a name for the next anonymous class.