Re[2]: [PHP-DEV] protected interface methods

From: Date: Thu, 03 Jul 2003 16:28:59 +0000
Subject: Re[2]: [PHP-DEV] protected interface methods
References: 1 2 3  Groups: php.internals 
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Hello Jan, Thursday, July 3, 2003, 6:15:04 PM, you wrote: JS> Zitat von Moriyoshi Koizumi <moriyoshi@at.wakwak.com>: >> marcus.boerger@t-online.de (Marcus Börger) wrote: >> >> > Hello internals, >> > >> > It is of course correct that an interface method cannot be declared >> private >> > but i think it should be possible to declare it protected. >> >> I don't see the benefit to allow interfaces to have protected methods as >> I >> use abstracts for that purpose. What's your point? JS> Agreed. As the name implies "interfaces" define interfaces to the outside JS> not to extending classes. Not really. An interface simply describes a protocol subset that must be part of the implementing class's protocol. In that it makes no sense to allow final or private methods in an interface but still a protected member in an interface would describe a subset of a protocol. And hence it would describe a method that must be available with protected or public visibility. Or in other words it would make it possible to hide a method per default from outside. "A derived class must implement it but other classes are not supposed to use it" I came across this when i experimened with __clone. -- Best regards, Marcus mailto:helly@php.net

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