Hi. Thank's for kind words. 2016-03-24 19:22 GMT+01:00 Mariano Martinez Peck <[email protected]>:
> >> - GHClassGhost able to replace class of real objects. It implements >> cannotInterpret: trick to intercept all instance messages. Subclasses >> should define two behaviours: #ghostBehaviour (as any other ghost) and >> #instancesBehaviour which will process instance messages. In previous >> version it was different message to same #ghostBehaviour. >> >> In your original version you implemented #cannotInterpert: for instance messages such way: proxy proxyHandler *handleInterceptionToInstance:* interception. And proxy handler was responsible for two messages: #handleInterceptionToInstance: and #handleInterception:. In my version I ask proxy for different kind of handler (ghostBehaviour): GHObjectGhost>>doesNotUnderstand: aMessage self *ghostBehaviour* intercept: aMessage to: self GHInstanceMessagesInterceptor>>cannotInterpret: aMessage "some logic to find ghostClass" ghostClass *instancesBehaviour* intercept: aMessage to: self > >> - New kind of proxies: >> - GHObjectVirus. It is special kind of GHClassProxy. It infects real >> object to intercept it messages. From meta level infected object looks >> like >> healthy object which means that meta messages are executed by infected >> object itself. As class virus looks like real victim class. So in case >> when >> virus is created with standard meta level tools will not differ him >> from >> health object. There are special messages which allow ask object about >> viruses: >> - infectedObject isInfectedByVirus >> - infectedObject virus >> - infectedObject recoverFromVirus >> >> > Sorry I did not get this one. > Good example where I use viruses is stubbing real objects in Mocketry. I will announce it soon. You can do this: rect := 0@0 corner: 2@3 rect stub area willReturn: 1000. rect area "=> 1000". rect origin "=> 0@0". >From any tool you will see normal rectangle. Nothing special. But in reality it is infected by virus which delegate all messages to "Mocketry machinery". And you can detect it by: rect isInfectedByVirus "=> true" And you can heal infected object: rect recoverFromVirus. "or virus heal: infectedObject" rect isInfectedByVirus "=> false"
