package MyApp::Universal; use warnings; use strict; use Try::Tiny; sub deref { # # Weak linear dereferencing. $foo->deref('bar','baz') # is almost like $foo->bar->baz except we'll # return undef rather than barfing if 'foo' # or 'bar' evaulate to undef. # if (@_ >= 2) { my $ref = shift; my $deref = shift; return unless defined $ref && defined $deref && try {$ref->can('isa')}; return deref($ref->$deref => @_); } elsif (@_) { return shift; } else { return; } } #### $obj->deref(qw(foo bar baz)); #### $obj~>foo~>bar~>baz; #### $href~>{foo}~>[$bar]~>{baz};