This post originated from an RSS feed registered with Scala Buzz by Caoyuan Deng. Original Post: Scala for NetBeans Screenshot#5: Working on Debug Feed Title: Blogs about Scala from Caoyuan Feed URL: http://blogtrader.org/page/dcaoyuan/feed/entries/atom?tags=scala Feed Description: Blogs about Scala from Caoyuan Deng Latest Scala Buzz Posts Latest Scala Buzz Posts by Caoyuan Deng Latest Posts From Blogs about Scala from Caoyuan

I'm working on debug feature for Scala on NetBeans. I copied a smallest set of class from Java Debugger module, and hacked something to make debug working on a mixed project (A Java project with Scala source files). By default, NetBeans IDE will step through Scala source files that are called (see Greetjan's article: Stepping through Groovy in NetBeans IDE ), but you can't add breakpoints directly on Scala source file. So the first thing that I should work on is let the user can add/remove breakpoints in Scala Editor, and get NetBeans' debugger stopping at these breakpoints. After a full day hacking, I got this working.

The screenshot shows a mixed Java/Scala project, the example code was copied from Fred Janon's blog, it's a pretty simple example. I added a breakpoint on Dog.scala's "def talk()" function, then invoke debug, the execution stopped at this function as I expected, and you can see the context, for example: local variable "sound" on debugging windows (on the right-bottom)

I need to get the debug feature working on a pure Scala project, I have not tried yet, but it seems I need to get the Scala project module better before that.

Click on the picture to enlarge it