JavaType:
    JavaPrimitive | JavaClass;
    
JavaPrimitive:
	'primitive' type=[types::JvmType|ID] 'mapped-to' name=ID ';';

JavaClass:
	'class' type=[types::JvmType|QualifiedName] 'mapped-to' name=ID ';';

class java.lang.Integer mapped-to Integer;
class java.lang.Long mapped-to Long;
class java.util.Date mapped-to Date;
class java.lang.String mapped-to String;

primitive boolean mapped-to boolean;
primitive int mapped-to int;
primitive long mapped-to long;

rg.eclipse.xtext.common.types.impl.JvmVoidImpl@5932926d (eProxyURI: platform:/resource//example.valuetypes/src/model/Java.valuetypes#xtextLink_::0.0.0.3.1::1::/2)

grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals

import "http://www.eclipse.org/xtext/common/JavaVMTypes" as types

generate myDsl "http://www.xtext.org/example/mydsl/MyDsl"

Model: types+=JavaType*;

JavaType:
    JavaPrimitive | JavaClass;
    
JavaPrimitive:
	'primitive' type=[types::JvmType|ID] 'mapped-to' name=ID ';';

JavaClass:
	'class' type=[types::JvmType|QualifiedName] 'mapped-to' name=ID ';';
	
QualifiedName: ID("." ID)*;

module org.xtext.example.mydsl.MyDsl

import org.eclipse.emf.mwe.utils.*
import org.eclipse.xtext.generator.*
import org.eclipse.xtext.ui.generator.*

var grammarURI = "classpath:/org/xtext/example/mydsl/MyDsl.xtext"
var file.extensions = "mydsl"
var projectName = "org.xtext.example.mydsl"
var runtimeProject = "../${projectName}"

Workflow {
    bean = StandaloneSetup {
		platformUri = "${runtimeProject}/.."
	}

	component = DirectoryCleaner {
		directory = "${runtimeProject}/src-gen"
	}

	component = DirectoryCleaner {
		directory = "${runtimeProject}.ui/src-gen"
	}

	component = Generator {
		pathRtProject = runtimeProject
		pathUiProject = "${runtimeProject}.ui"
		projectNameRt = projectName
		projectNameUi = "${projectName}.ui"
		language = {
			uri = grammarURI
			fileExtensions = file.extensions

			// Java API to access grammar elements (required by several other fragments)
			fragment = grammarAccess.GrammarAccessFragment {}

			// generates Java API for the generated EPackages 
			fragment = ecore.EcoreGeneratorFragment {
				referencedGenModels="classpath:/model/JavaVMTypes.genmodel"
			}

			// the serialization component
			fragment = parseTreeConstructor.ParseTreeConstructorFragment {}

			// a custom ResourceFactory for use with EMF 
			fragment = resourceFactory.ResourceFactoryFragment {
				fileExtensions = file.extensions
			}

			// The antlr parser generator fragment.
			fragment = parser.antlr.XtextAntlrGeneratorFragment {
			//  options = {
			//		backtrack = true
			//	}
			}

			// java-based API for validation 
			fragment = validation.JavaValidatorFragment {
				composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
				composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// registerForImportedPackages = true
			}

			// scoping and exporting API
			// fragment = scoping.ImportURIScopingFragment {}
			// fragment = exporting.SimpleNamesFragment {}

			// scoping and exporting API 
			fragment = scoping.ImportNamespacesScopingFragment {}
			fragment = exporting.QualifiedNamesFragment {}
			fragment = builder.BuilderIntegrationFragment {}

			// formatter API 
			fragment = formatting.FormatterFragment {}

			// labeling API 
			fragment = labeling.LabelProviderFragment {}

			// outline API 
			fragment = outline.TransformerFragment {}
			fragment = outline.OutlineNodeAdapterFactoryFragment {}
			fragment = outline.QuickOutlineFragment {}

			// quickfix API 
			fragment = quickfix.QuickfixProviderFragment {}

			// content assist API  
			fragment = contentAssist.JavaBasedContentAssistFragment {}

			// generates a more lightweight Antlr parser and lexer tailored for content assist  
			fragment = parser.antlr.XtextAntlrUiGeneratorFragment {}
			
			fragment = types.TypesGeneratorFragment {}

			// project wizard (optional) 
			// fragment = projectWizard.SimpleProjectWizardFragment {
			// 		generatorProjectName = "${projectName}.generator" 
			//		modelFileExtension = file.extensions
			// }
		}
	}
}

«IMPORT org::xtext::example::mydsl::myDsl»

«DEFINE main FOR List[JavaType]-»
«FILE "test.txt"-»
«FOREACH this AS type»
«type.type.canonicalName»
«ENDFOREACH»
«ENDFILE-»
«ENDDEFINE»

module workflow.MyDslGenerator

import org.eclipse.emf.mwe.utils.*

var targetDir = "src-gen"
var fileEncoding = "Cp1252"
var modelPath = "src/model"

Workflow {

	component = org.eclipse.xtext.mwe.Reader {
		// lookup all resources on the classpath
		// useJavaClassPath = true

		// or define search scope explicitly
		path = modelPath

		// this class will be generated by the xtext generator 
		register = org.xtext.example.mydsl.MyDslStandaloneSetup {}
		load = {
			slot = "types"
			type = "JavaType"
		}
	}

	component = org.eclipse.xpand2.Generator {
		expand = "templates::Template::main FOR types"
		outlet = {
			path = targetDir
		}
		fileEncoding = fileEncoding
	}
}

«IMPORT org::xtext::example::mydsl::myDsl»

component = org.eclipse.xpand2.Generator {
		expand = "templates::Template::main FOR types"
		outlet = {
			path = targetDir
		}
		fileEncoding = fileEncoding
	}