Eclipse Scala interpreter (REPL) - proper use and debugging

Question

I would like to know what are best practises of using Eclipse Scala interpreter (Eclipse Scala IDE).

Let's say I have application with breakpoint in it. Is it possible to debug an application in such a way, that I can execute/evaluate expressions inside REPL at the specific breakpoint? If yes how can I achieve it?

Another thing that made me wonder is what's the difference between opening the interpreter as Run configuration or opening it trough Window -> Show view -> Scala interpreter.

Do you know any other uses cases of Eclipse Scala interpreter that are interesting to know about, like for example Ctrl+Shift+X to run selected expression?

Junior

Answer 1

Maybe it is an obvious advice, but in addition to merely starting REPL in Scala IDE you can run selected expression in it: just select the expression and press Ctrl+Shift+X (default hotkey).

Update
There is a comprehensive reference for Scala interpreter (thanks Mirco Dotta).
It is also worth to mention that in near future Scala interpreter is going to be enhanced significantly: integration with Scala debugger and implementation of a concept known as worksheet are on the way.

Varanasi

At the moment REPL seems to be not very advanced, but I have high hopes for this one, assembla.com/spaces/scala-ide/tickets/1000865 It is accepted for inclusion in Milestone 2 and M2 is scheduled to July. – Varanasi

Scala debuger as part of Scala IDE 2.1 will provide some net features... You can find all new features of IDE 2.1 here. – Junior

For future reference, here is a link to the Eclipse Scala Interpreter documentation. @Junior is right, and we want to experiment if we can attach a REPL to the debugger so that you can evaluate expression at breakpoints. – Chevy