package Baz; use base qw(Foo Bar);
BEGIN { require Foo; require Bar; push @ISA, qw(Foo Bar); }Will also initialize the %FIELDS hash if one of the base classes has it. Multiple inheritance of %FIELDS is not supported. The `base' pragma will croak if multiple base classes has a %FIELDS hash. See the fields manpage for a description of this feature.
When strict `vars' is in scope base also let you assign to @ISA without having to declare @ISA with the `vars' pragma first.
This module was introduced with Perl 5.004_04.