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(Xtext) 15 Minute Tutorial needs to be updated for version 2.2 [message #778796]

Fri, 13 January 2012 21:12

David Wegener

Messages: 1439
Registered: July 2009

Senior Member

The existing 15 minute tutorial - extended for Xtext appears to still be at the 2.1 level. It includes references to the deprecated class org.eclipse.xtext.xtend2.lib.ResourceExtensions. From looking through other posts and searching the net, this appears to have been replaced by org.eclipse.xtext.xbase.lib.IteratorExtensions.

Using IteratorExtensions produces the error: Couldn't resolve reference to JvmType 'org.eclipse.xtext.xbase.lib.IteratorExtensions'.

This is in the first step of the tutorial and renders it useless for this release of Xtext.

http://www.eclipse.org/Xtext/documentation/2_1_0/040-first-code-generator.php

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Re: (Xtext) 15 Minute Tutorial needs to be updated for version 2.2 [message #778810 is a reply to message #778796]

Fri, 13 January 2012 22:02

David Wegener

Messages: 1439
Registered: July 2009

Senior Member

After restarting Eclipse, the error for IteratorExtensions has gone away and the editor is now able to resolve the reference to it. I'm now able to continue with the tutorial by simply replacing the

import static extension org.eclipse.xtext.xtend2.lib.ResourceExtensions.*

with

import static extension org.eclipse.xtext.xbase.lib.IteratorExtensions.*

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Re: (Xtext) 15 Minute Tutorial needs to be updated for version 2.2 [message #780333 is a reply to message #778796]

Tue, 17 January 2012 16:08

Karsten Thoms

Messages: 734
Registered: July 2009
Location: Dortmund, Germany

Senior Member

Hi David,

please open a bug report. This would get lost in the forum otherwise.

Regards,
~Karsten

Need professional support for Xtext, EMF, Eclipse IDE?
Go to: http://devhub.karakun.com
Twitter : @kthoms
Blog : www.karsten-thoms.de

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Re: (Xtext) 15 Minute Tutorial needs to be updated for version 2.2 [message #833527 is a reply to message #778796]

Sat, 31 March 2012 16:47

Missing name Missing name

Messages: 1
Registered: March 2012

Junior Member

I had to do this, to work:

package com.diegogusava.generator

import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.IGenerator
import org.eclipse.xtext.generator.IFileSystemAccess
import org.eclipse.xtext.naming.IQualifiedNameProvider
import com.google.inject.Inject
import com.diegogusava.myDsl.Entity
import com.diegogusava.myDsl.Feature

class MyDslGenerator implements IGenerator {
	
	@Inject extension IQualifiedNameProvider nameProvider 
	
	override doGenerate(Resource resource, IFileSystemAccess fsa) {
	
		for(e: resource.allContents.toList().filter(typeof(Entity))) {
			 fsa.generateFile(
                e.fullyQualifiedName.toString.replace(".", "/") + ".java",
                e.compile)
		}
	
	}
	
	def compile(Entity e) ''' 
        «IF e.eContainer != null»
            package «e.eContainer.fullyQualifiedName»;
        «ENDIF»
        
        public class «e.name» «IF e.superType != null
                        »extends «e.superType.fullyQualifiedName» «ENDIF»{
            «FOR f:e.features»
                «f.compile»
            «ENDFOR»
        }
    '''
    
    def compile(Feature f) '''
        private «f.type.fullyQualifiedName» «f.name»;
        
        public «f.type.fullyQualifiedName» get«f.name.toFirstUpper»() {
            return «f.name»;
        }
        
        public void set«f.name.toFirstUpper»(«f.type.fullyQualifiedName» «f.name») {
            this.«f.name» = «f.name»;
        }
    '''
	
}

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