Hi,

RubScrolledTextModel fails sometimes if the model does not have an interaction model set.

For example in a few places there is a check that verifies if the model understands a message and then the message is send to the interaction model.

evaluate: aStream andDo: aBlock

....

(self model respondsTo: #doItReceiver) ��"check on the model"

ifTrue: [ rcvr := self model doItReceiver.

ctxt := self model doItContext]

And then doItReceiver is implemented like:

doItReceiver

^ interactionModel ifNotNil: [ :im | im doItReceiver ] "message send to the interaction model"

Also in some cases a condition is checked on the model and then the actual result is obtained from the interaction model:

(self model systemNavigation allImplementorsOf: aSelector) isEmpty

ifTrue: [ self internalCallToBrowse: aSelector ]

ifFalse: [ self model interactionModel systemNavigation browseAllImplementorsOf: aSelector ]

I'll say these are bugs.

Also should a RubScrolledTextModel always have an interaction model?

Cheers,

Andrei