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Date: Thu, 19 Jun 2008 07:58:37 -0500
Message-ID: <0489D0DE749FD2489EEB99455DEB6A7F08178226@svr-fp-exch.dalair.com>
Thread-Topic: Overloading
Thread-Index: AcjR9+8OaT1kZK9+R+aH/GL3nW8F1gAFBhiw
To: <internals@lists.php.net>
Subject: Overloading
From: MTinsley@dallasairmotive.com ("Tinsley, Mark")

What about the addition of overloading for PHP 6?

I am not totally up to date on the developments of the parameter type
hints. I briefly read the meeting minutes for PHP 6.

What about with the type hints we have now?

class moo
{

    public static function foo(FooClass $FooVar)
    {
        // do something=20
    }

    public static function foo(BooClass $BooVar)
    {
        // do something
    }
}


I have a project where we had to do a sort of pseudo overloading

Class moo
{
    /**
     * Accept the superclass or any of its sub classes
     */
    public static function foo(FooSuperClass $Foo)
    {
        switch (true)
        {
        case $Foo instanceof FooClass:
            $method =3D 'fooFoo';
            break;

        case $Foo instanceof BooClass:
            $method =3D 'fooBoo';
            break;

        default:
            throw new Exception('Unrecognized type: ' .
get_class($Foo));
            break;
        }

        call_user_func(array(self, $method), $Foo);
    }

    private static function fooFoo(FooClass $FooVar)
    {
        // do something
    }

    private static function fooBoo(BooClass $BooVar)
    {
        // do something
    }
}

Mark