#!/usr/bin/env perl use strict; use warnings; use Test::More tests => 18; # inheritance tree looks like: # # SuperL SuperR # \ / # MiddleL MiddleR # \ / # -Child- # the Child and MiddleR modules use modifiers # Child will modify a method in SuperL (sl_c) # Child will modify a method in SuperR (sr_c) # Child will modify a method in SuperR already modified by MiddleR (sr_m_c) # SuperL and MiddleR will both have a method of the same name, doing different # things (called 'conflict' and 'cnf_mod') # every method and modifier will just return <Class:Method:STUFF> my $SuperL = SuperL->new(); my $SuperR = SuperR->new(); my $MiddleL = MiddleL->new(); my $MiddleR = MiddleR->new(); my $Child = Child->new(); is($SuperL->superl, "<SuperL:superl>", "SuperL loaded correctly"); is($SuperR->superr, "<SuperR:superr>", "SuperR loaded correctly"); is($MiddleL->middlel, "<MiddleL:middlel>", "MiddleL loaded correctly"); is($MiddleR->middler, "<MiddleR:middler>", "MiddleR loaded correctly"); is($Child->child, "<Child:child>", "Child loaded correctly"); is($SuperL->sl_c, "<SuperL:sl_c>", "SuperL->sl_c on SuperL"); is($Child->sl_c, "<Child:sl_c:<SuperL:sl_c>>", "SuperL->sl_c wrapped by Child's around"); is($SuperR->sr_c, "<SuperR:sr_c>", "SuperR->sr_c on SuperR"); is($Child->sr_c, "<Child:sr_c:<SuperR:sr_c>>", "SuperR->sr_c wrapped by Child's around"); is($SuperR->sr_m_c, "<SuperR:sr_m_c>", "SuperR->sr_m_c on SuperR"); is($MiddleR->sr_m_c, "<MiddleR:sr_m_c:<SuperR:sr_m_c>>", "SuperR->sr_m_c wrapped by MiddleR's around"); is($Child->sr_m_c, "<Child:sr_m_c:<MiddleR:sr_m_c:<SuperR:sr_m_c>>>", "MiddleR->sr_m_c's wrapping wrapped by Child's around"); is($SuperL->conflict, "<SuperL:conflict>", "SuperL->conflict on SuperL"); is($MiddleR->conflict, "<MiddleR:conflict>", "MiddleR->conflict on MiddleR"); is($Child->conflict, "<SuperL:conflict>", "SuperL->conflict on Child"); is($SuperL->cnf_mod, "<SuperL:cnf_mod>", "SuperL->cnf_mod on SuperL"); is($MiddleR->cnf_mod, "<MiddleR:cnf_mod>", "MiddleR->cnf_mod on MiddleR"); is($Child->cnf_mod, "<Child:cnf_mod:<SuperL:cnf_mod>>", "SuperL->cnf_mod wrapped by Child's around"); BEGIN { { package SuperL; sub new { bless {}, shift } sub superl { "<SuperL:superl>" } sub conflict { "<SuperL:conflict>" } sub cnf_mod { "<SuperL:cnf_mod>" } sub sl_c { "<SuperL:sl_c>" } } { package SuperR; sub new { bless {}, shift } sub superr { "<SuperR:superr>" } sub sr_c { "<SuperR:sr_c>" } sub sr_m_c { "<SuperR:sr_m_c>" } } { package MiddleL; our @ISA = 'SuperL'; sub middlel { "<MiddleL:middlel>" } } { package MiddleR; our @ISA = 'SuperR'; use Class::Method::Modifiers; sub middler { "<MiddleR:middler>" } sub conflict { "<MiddleR:conflict>" } sub cnf_mod { "<MiddleR:cnf_mod>" } around sr_m_c => sub { my $orig = shift; return "<MiddleR:sr_m_c:".$orig->(@_).">" }; } { package Child; our @ISA = ('MiddleL', 'MiddleR'); use Class::Method::Modifiers; sub child { "<Child:child>" } around cnf_mod => sub { "<Child:cnf_mod:".shift->(@_).">" }; around sl_c => sub { "<Child:sl_c:".shift->(@_).">" }; around sr_c => sub { "<Child:sr_c:".shift->(@_).">" }; around sr_m_c => sub { my $orig = shift; return "<Child:sr_m_c:".$orig->(@_).">" }; } }