This blog is moving

My computer blog is now moving to my new home page, http://www.lorenzobettini.it, however, all the posts already available in this blog will not be removed.

The JvmModelInferrer, the debugger and Xbase in Xtext 2.3

See the original post here:

The JvmModelInferrer, the debugger and Xbase in Xtext 2.3

Eclipse internal Web Browser in Kubuntu Precise Pangoline 12.04

This can be seen as a sort of follow-up of my previous post, Eclipse internal Web Browser in Ubuntu Lucid: after installing Kubuntu Precise Pangolin 12.04 the internal browser of Eclipse stopped working. In particular, when using Mylyn Gerrit connector (relying on OpenID authentication, which requires the eclipse internal browser) I got this error

org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles [Unknown Mozilla path (MOZILLA_FIVE_HOME not set)])

and indeed, by looking at the preferences corresponding to the Web browser I cannot select the internal browser:

Last time, I had solved this problem by installing the xulrunner package, but, sad to hear, this package has been dropped since Oneiric!

Fortunately, we can rely on another package:

sudo apt-get install libwebkitgtk-1.0-0

and you'll enjoy Eclipse internal web browser again! :)

Closing the Eclipse Welcome screen programmatically

When writing Junit plugin tests in Eclipse I wanted to close the welcome page programmatically before starting the tests; looks like it's pretty easy :) Just use this @BeforeClass static method and you'll be fine!

   @BeforeClass
   public static void closeWelcome() {
       final IIntroManager introManager = 
           PlatformUI.getWorkbench().getIntroManager();
       IIntroPart part = introManager.getIntro();
       introManager.closeIntro(part);
   }

Xtext 2.1: using Xbase variables

See the original post here:

Xtext 2.1: using Xbase variables

In this post, I’d like to continue to inspect how to use only a small part of Xbase and still have the control on the generation part: in particular (for other projects) I would like to retain the control on the generation for my model, while relying on the Xbase generation for the Xbase parts. Thus, in this post I’ll describe:

• how to integrate Xbase variables (XVariableDeclaration) and expressions (XExpression) in your DSL
• how to extend Xbase scoping for making the variables visible in the expressions
• write a generator for your DSL and reuse the XbaseCompiler for the code of XVariableDeclaration and XExpressions

Xtext 2.1: using Xbase expressions

See the whole blog post here:

Xtext 2.1: using Xbase expressions

I’d like to inspect how to use only a small part of Xbase and still have the control on the generation part: in particular (for other projects) I would like to retain the control on the generation for my model, while relying on the Xbase generation for the Xbase parts. Thus, in this post I’ll describe:

• how to integrate Xbase expressions (XExpression) in your DSL
• write a generator for your DSL and reuse the XbaseCompiler for the code of XExpressions

Using JVM Types in Xtext 2.1 and the ImportManager

Using JVM Types in Xtext 2.1 and the ImportManager