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CODE GENERATION WITH XTEXT: Someone please help [message #725783]

Thu, 15 September 2011 18:48

AHOT Mising name

Messages: 13
Registered: September 2011

Junior Member

I'm a new beginner xtext trying to use it for code synthesis, I have read the 15 minutes tutorial extended and acted on it.Having created the language grammar and the the code generator file (i.e *.extend file), I used the Run as Eclipse Application option to create another instance of my eclipse and created an instance model of my meta-model as instructed. The problem I'm having is "HOW TO GO FURTHER AND GENERATE THE SOURCE CODE FOR MY INSTANCE MODEL"; I created a source folder "src-gen" as instructed but nothing happened. I have read several books like the xtext documentation, oaw tutorial, and a few blogs by Sven Efftinge but have not been able to solve this problem, Can someone please help me out?

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Re: CODE GENERATION WITH XTEXT: Someone please help [message #725788 is a reply to message #725783]

Thu, 15 September 2011 19:01

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi

seems everything ok. here once more the steps (2 mins with a new dsl)

(1) create a new xtext project using the default settings and generate the language
(2) implement the generator

package org.xtext.example.mydsl.generator

import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.IGenerator
import org.eclipse.xtext.generator.IFileSystemAccess

class MyDslGenerator implements IGenerator {
	
	override void doGenerate(Resource resource, IFileSystemAccess fsa) {
		fsa.generateFile("test.txt","Hello Gen")
	}
}

(3) start a runtime app
(4) create a java project and place a test.mydsl file in the source folder (ask yes when asked about the xtext nature)