in reply to Re^4: Is "ref($class) || $class" a bad thing?
in thread Is "ref($class) || $class" a bad thing?
#!/usr/bin/perl -w use strict; use Test::More tests => 5; package Foo; sub new { my $class = shift; return unless eval { $class->isa( __PACKAGE__ ) }; bless {}, $class; } sub is_object { 1 }; package Bar; @Bar::ISA = 'Foo'; package main; sub is_object { 0 }; my $foo = Foo->new(); isa_ok( $foo, 'Foo' ); my $bar = Bar->new(); isa_ok( $bar, 'Bar' ); ok( $foo->is_object(), '$foo is an object' ); ok( $bar->is_object(), '$bar is an object' ); my $hash = Foo::new( {} ); is( $hash, undef, 'Foo::new() should not bless a reference passed in' +);
|
|---|