Using Eclipse with JRuby Truffle

This is an experiment, mainly to have a much better feedback from the Truffle annotation processor and ideally much faster compile time!

Using integrated Maven support

Create a new workspace in Eclipse (>= Luna).

Start by ensuring there is no leftover configuration:

$ rm -rf core/.classpath core/.settings core/.project

We can now import the project:

• From the main menu bar, select File > Import...
• Select Maven > Existing Maven Projects
• Select jruby/core directory as root directory (NOT just jruby)
• Click Finish

And now enable the Truffle annotation processor:

• From the main menu bar, select Project > Properties
• Select Java Compiler > Annotation Processing
• Click on Enable project specific settings, then OK
• Click Yes to rebuild the project.

You shall be set!

You might want to change the Output folder in Java Build Path so it is better separated from the Maven compilation process.

It is possible to run JRuby with a run configuration for org.jruby.Main.main().
Further integration is under investigation.