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Home » Modeling » TMF (Xtext) » Importing a xtext file to another xtext file in the same package
Importing a xtext file to another xtext file in the same package [message #1799660] Wed, 12 December 2018 06:11 Go to next message
P J is currently offline P JFriend
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Hi,
I have two xtext files in the same project. I need to import one xtext file to the other in order to use the grammar definitions declared in it. Could you please tell me the statement I should use to import the grammar file?
Regards!

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Re: Importing a xtext file to another xtext file in the same package [message #1799661 is a reply to message #1799660] Wed, 12 December 2018 06:14 Go to previous messageGo to next message
P J is currently offline P JFriend
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Is this approach correct?

import "http://www.typefox.io/xtext/langserver/example/OfflineExpression" as OfflineExpression

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Re: Importing a xtext file to another xtext file in the same package [message #1799662 is a reply to message #1799661] Wed, 12 December 2018 06:19 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
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what do you mean by import the grammar file.

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1799663 is a reply to message #1799662] Wed, 12 December 2018 06:27 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
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Registered: July 2009
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in the workflow:

module org.xtext.example.mydsl.GenerateMyDsl

import org.eclipse.xtext.xtext.generator.*
import org.eclipse.xtext.xtext.generator.model.project.*

var rootPath = ".."

Workflow {

component = XtextGenerator {
configuration = {
project = StandardProjectConfig {
baseName = "org.xtext.example.mydsl"
rootPath = rootPath
runtimeTest = {
enabled = true
}
eclipsePlugin = {
enabled = true
}
eclipsePluginTest = {
enabled = true
}
createEclipseMetaData = true
}
code = {
encoding = "UTF-8"
lineDelimiter = "\n"
fileHeader = "/*\n * generated by Xtext \${version}\n */"
}
}
language = StandardLanguage {
name = "org.xtext.example.mydsl.MyDsl"
fileExtensions = "mydsl"

serializer = {
generateStub = false
}
validator = {
// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
generateDeprecationValidation = true
}
junitSupport = {
junitVersion = "5"
}
}

language = StandardLanguage {
referencedResource="platform:/resource/org.xtext.example.mydsl/src/org/xtext/example/mydsl/MyDsl.xtext"
name = "org.xtext.example.mydsl.MyDsl2"
fileExtensions = "mydsl2"

serializer = {
generateStub = false
}
validator = {
// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
generateDeprecationValidation = true
}
junitSupport = {
junitVersion = "5"
}
}
}
}

maybe that is what you are looking for

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1799664 is a reply to message #1799663] Wed, 12 December 2018 06:28 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
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besides that import "xxxx" is for the metamodel (you might have to generate once to get rid of error in editor)
and with statement is for parent grammar

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1799665 is a reply to message #1799662] Wed, 12 December 2018 06:31 Go to previous messageGo to next message
P J is currently offline P JFriend
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Is it possible to import one grammar file to the other and use the grammar definitions declared in the first file, in the second file?
For instance,
if there is a grammar definition in file1.xtext as,

KEYWORD_for:
'for'
;

Can I use it in file2.xtext as,

Element:
'start' name=ID KEYWORD_for name2=ID ';'
;

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Re: Importing a xtext file to another xtext file in the same package [message #1799666 is a reply to message #1799665] Wed, 12 December 2018 06:33 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
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no. you can only inherit from one parent grammar

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1799727 is a reply to message #1799666] Thu, 13 December 2018 03:47 Go to previous messageGo to next message
P J is currently offline P JFriend
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Hi Christian,

I though it was possible to extend one grammar file with another?

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Re: Importing a xtext file to another xtext file in the same package [message #1799731 is a reply to message #1799727] Thu, 13 December 2018 06:34 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
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Yes you can extend one with another by changing the with clause.
But you cannot Import a grammar

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1799909 is a reply to message #1799731] Mon, 17 December 2018 10:52 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
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Hello Christian,

I found out this https://www.eclipse.org/forums/index.php/t/317660 where it is mentioned about importing one xtext file to another, as well as using 'with' keyword. I'm confused. What do these two do and how can I use them practically? Could you kindly explain a simple example?

Regards!

[Updated on: Mon, 17 December 2018 10:52]

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Re: Importing a xtext file to another xtext file in the same package [message #1799913 is a reply to message #1799909] Mon, 17 December 2018 11:50 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
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you can introduce a base grammar and use it in another grammar as parent grammar (only one chain of inheritance)

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800014 is a reply to message #1799913] Wed, 19 December 2018 03:59 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
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Hi,
I generated a Xtext file using the mwe2 workflow, and tried implementing inheritance: -

MyDsl.xtext:
grammar org.xtext.example.mydsl.MyDsl with org.xtext.example.mydsl.MyDsl2

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

Model:
	greetings+=Greeting*;
	
Greeting:
	'Hello' name=ID '!' type=MyDsl2::List;


MyDsl2.Xtext: -
grammar org.xtext.example.mydsl.MyDsl2 with org.eclipse.xtext.common.Terminals

generate myDsl2 "http://www.xtext.org/example/mydsl/MyDsl2"

MainModel:
	seasons+=Season*;
	
Season:
	"This_is" alt=List;

List:
	alt=('Spring' | 'Summer' | 'Autumn' | 'Winter')
;


When I try to generate Xtext Artifacts in Mydsl.xtext, I get the following error in the console: -
0    [main] INFO  text.xtext.generator.XtextGenerator  - Initializing Xtext generator
8    [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
207  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl/'
208  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.tests at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.tests/'
208  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ide at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.ide/'
208  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ui at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.ui/'
209  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ui.tests at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.ui.tests/'
215  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
419  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/Xtext/Xbase/XAnnotations' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
424  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/xbase/Xtype' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
440  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/xbase/Xbase' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
440  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/common/JavaVMTypes' from 'platform:/resource/org.eclipse.xtext.common.types/model/JavaVMTypes.genmodel'
1035 [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
1216 [main] INFO  text.xtext.generator.XtextGenerator  - Generating org.xtext.example.mydsl.MyDsl
1985 [main] ERROR nerator.ecore.EMFGeneratorFragment2  - Failed to execute EMF generator
java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl2'.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.ecore.EMFGeneratorFragment2.findEPackagesInGenPackages(EMFGeneratorFragment2.java:648)
	at org.eclipse.xtext.xtext.generator.ecore.EMFGeneratorFragment2.generate(EMFGeneratorFragment2.java:430)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
3111 [main] INFO  text.xtext.generator.XtextGenerator  - Generating org.xtext.example.mydsl.MyDsl2
3581 [main] INFO  nerator.ecore.EMFGeneratorFragment2  - Generating EMF model code
3617 [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.xtext.org/example/mydsl/MyDsl2' from 'platform:/resource/org.xtext.example.mydsl/model/generated/MyDsl2.genmodel'
5103 [main] INFO  text.xtext.generator.XtextGenerator  - Generating common infrastructure
5122 [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher  - Problems running workflow org.xtext.example.mydsl.GenerateMyDsl: 
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:303)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:177)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess$JavaTypeAwareStringConcatenation.getStringRepresentation(JavaFileAccess.java:63)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:310)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtend2.lib.StringConcatenation$IndentedTarget.append(StringConcatenation.java:738)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$6.appendTo(SerializerFragment2.java:598)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:308)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$5.appendTo(SerializerFragment2.java:478)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:176)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess.setContent(JavaFileAccess.java:169)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generateAbstractSemanticSequencer(SerializerFragment2.java:515)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generate(SerializerFragment2.java:213)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClassifier(GenModelUtil2.java:43)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClass(GenModelUtil2.java:38)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:286)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:169)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generateExampleRuntimeTest(JUnitFragment.java:200)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generate(JUnitFragment.java:146)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

java.lang.RuntimeException: Problems running workflow org.xtext.example.mydsl.GenerateMyDsl: 
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:303)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:177)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess$JavaTypeAwareStringConcatenation.getStringRepresentation(JavaFileAccess.java:63)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:310)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtend2.lib.StringConcatenation$IndentedTarget.append(StringConcatenation.java:738)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$6.appendTo(SerializerFragment2.java:598)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:308)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$5.appendTo(SerializerFragment2.java:478)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:176)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess.setContent(JavaFileAccess.java:169)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generateAbstractSemanticSequencer(SerializerFragment2.java:515)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generate(SerializerFragment2.java:213)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClassifier(GenModelUtil2.java:43)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClass(GenModelUtil2.java:38)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:286)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:169)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generateExampleRuntimeTest(JUnitFragment.java:200)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generate(JUnitFragment.java:146)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:104)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.RuntimeException: 
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:303)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:177)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess$JavaTypeAwareStringConcatenation.getStringRepresentation(JavaFileAccess.java:63)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:310)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtend2.lib.StringConcatenation$IndentedTarget.append(StringConcatenation.java:738)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$6.appendTo(SerializerFragment2.java:598)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:308)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$5.appendTo(SerializerFragment2.java:478)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:176)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess.setContent(JavaFileAccess.java:169)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generateAbstractSemanticSequencer(SerializerFragment2.java:515)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generate(SerializerFragment2.java:213)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClassifier(GenModelUtil2.java:43)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClass(GenModelUtil2.java:38)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:286)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:169)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generateExampleRuntimeTest(JUnitFragment.java:200)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generate(JUnitFragment.java:146)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.handleIssues(Mwe2Bridge.java:56)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:48)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	... 4 more


In addition, I do not have a 'Generate Xtext Artifacts' execution option for my MyDsl2.xtext file.

I will also post my mwe2 file below for your reference: -
module org.xtext.example.mydsl.GenerateMyDsl

import org.eclipse.xtext.xtext.generator.*
import org.eclipse.xtext.xtext.generator.model.project.*

var rootPath = ".."

Workflow {
	
	component = XtextGenerator {
		configuration = {
			project = StandardProjectConfig {
				baseName = "org.xtext.example.mydsl"
				rootPath = rootPath
				runtimeTest = {
					enabled = true
				}
				eclipsePlugin = {
					enabled = true
				}
				eclipsePluginTest = {
					enabled = true
				}
				createEclipseMetaData = true
			}
			code = {
				encoding = "windows-1252"
				lineDelimiter = "\r\n"
				fileHeader = "/*\n * generated by Xtext \${version}\n */"
			}
		}
		language = StandardLanguage {
			name = "org.xtext.example.mydsl.MyDsl"
			fileExtensions = "dsl"

			serializer = {
				generateStub = false
			}
			validator = {
				// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
				generateDeprecationValidation = true
			}
			junitSupport = {
				junitVersion = "5"
			}
		}
		language = StandardLanguage {
			name = "org.xtext.example.mydsl.MyDsl2"
			fileExtensions = "dsl"

			serializer = {
				generateStub = false
			}
			validator = {
				// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
				generateDeprecationValidation = true
			}
			junitSupport = {
				junitVersion = "5"
			}
		}
	}
}


Could you please tell me how I should overcome this problem?

Thank you!

[Updated on: Wed, 19 December 2018 04:14]

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Re: Importing a xtext file to another xtext file in the same package [message #1800017 is a reply to message #1800014] Wed, 19 December 2018 05:48 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
Du you use the referencedResource thing I proposed above?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800019 is a reply to message #1800017] Wed, 19 December 2018 06:12 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
Member
I had missed it. I added it now. But still get the below error when trying to build xtext artifacts: -
0    [main] INFO  text.xtext.generator.XtextGenerator  - Initializing Xtext generator
8    [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
194  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl/'
194  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.tests at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.tests/'
195  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ide at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.ide/'
195  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ui at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.ui/'
195  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ui.tests at 'file:/D:/XtextConversion_DONOTDELETE/InheritanceTest/org.xtext.example.mydsl.ui.tests/'
201  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
403  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/Xtext/Xbase/XAnnotations' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
408  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/xbase/Xtype' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
421  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/xbase/Xbase' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
421  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/common/JavaVMTypes' from 'platform:/resource/org.eclipse.xtext.common.types/model/JavaVMTypes.genmodel'
1004 [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
1180 [main] INFO  text.xtext.generator.XtextGenerator  - Generating org.xtext.example.mydsl.MyDsl
1979 [main] ERROR nerator.ecore.EMFGeneratorFragment2  - Failed to execute EMF generator
java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl2'.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.ecore.EMFGeneratorFragment2.findEPackagesInGenPackages(EMFGeneratorFragment2.java:648)
	at org.eclipse.xtext.xtext.generator.ecore.EMFGeneratorFragment2.generate(EMFGeneratorFragment2.java:430)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
3038 [main] INFO  text.xtext.generator.XtextGenerator  - Generating org.xtext.example.mydsl.MyDsl2
3580 [main] INFO  nerator.ecore.EMFGeneratorFragment2  - Generating EMF model code
3617 [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.xtext.org/example/mydsl/MyDsl2' from 'platform:/resource/org.xtext.example.mydsl/model/generated/MyDsl2.genmodel'
5065 [main] INFO  text.xtext.generator.XtextGenerator  - Generating common infrastructure
5083 [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher  - Problems running workflow org.xtext.example.mydsl.GenerateMyDsl: 
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:303)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:177)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess$JavaTypeAwareStringConcatenation.getStringRepresentation(JavaFileAccess.java:63)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:310)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtend2.lib.StringConcatenation$IndentedTarget.append(StringConcatenation.java:738)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$6.appendTo(SerializerFragment2.java:598)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:308)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$5.appendTo(SerializerFragment2.java:478)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:176)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess.setContent(JavaFileAccess.java:169)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generateAbstractSemanticSequencer(SerializerFragment2.java:515)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generate(SerializerFragment2.java:213)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClassifier(GenModelUtil2.java:43)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClass(GenModelUtil2.java:38)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:286)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:169)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generateExampleRuntimeTest(JUnitFragment.java:200)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generate(JUnitFragment.java:146)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

java.lang.RuntimeException: Problems running workflow org.xtext.example.mydsl.GenerateMyDsl: 
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:303)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:177)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess$JavaTypeAwareStringConcatenation.getStringRepresentation(JavaFileAccess.java:63)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:310)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtend2.lib.StringConcatenation$IndentedTarget.append(StringConcatenation.java:738)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$6.appendTo(SerializerFragment2.java:598)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:308)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$5.appendTo(SerializerFragment2.java:478)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:176)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess.setContent(JavaFileAccess.java:169)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generateAbstractSemanticSequencer(SerializerFragment2.java:515)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generate(SerializerFragment2.java:213)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClassifier(GenModelUtil2.java:43)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClass(GenModelUtil2.java:38)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:286)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:169)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generateExampleRuntimeTest(JUnitFragment.java:200)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generate(JUnitFragment.java:146)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:104)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.RuntimeException: 
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:303)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:177)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess$JavaTypeAwareStringConcatenation.getStringRepresentation(JavaFileAccess.java:63)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:310)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtend2.lib.StringConcatenation$IndentedTarget.append(StringConcatenation.java:738)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$6.appendTo(SerializerFragment2.java:598)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:308)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:226)
	at org.eclipse.xtend2.lib.StringConcatenation$SimpleTarget.append(StringConcatenation.java:690)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2$5.appendTo(SerializerFragment2.java:478)
	at org.eclipse.xtend2.lib.StringConcatenation.append(StringConcatenation.java:176)
	at org.eclipse.xtext.xtext.generator.model.JavaFileAccess.setContent(JavaFileAccess.java:169)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generateAbstractSemanticSequencer(SerializerFragment2.java:515)
	at org.eclipse.xtext.xtext.generator.serializer.SerializerFragment2.generate(SerializerFragment2.java:213)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
	 java.lang.RuntimeException: Could not find a GenModel for EPackage 'http://www.xtext.org/example/mydsl/MyDsl' from http://www.xtext.org/example/mydsl/MyDsl.
If the missing GenModel has been generated via EMFGeneratorFragment2, make sure to run it first in the workflow.
If you have a *.genmodel-file, make sure to register it via StandaloneSetup.registerGenModelFile(String).

	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenModelResource(GenModelUtil2.java:180)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenPackage(GenModelUtil2.java:109)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClassifier(GenModelUtil2.java:43)
	at org.eclipse.xtext.xtext.generator.util.GenModelUtil2.getGenClass(GenModelUtil2.java:38)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.getQualifiedName(TypeReference.java:286)
	at org.eclipse.xtext.xtext.generator.model.TypeReference.<init>(TypeReference.java:169)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generateExampleRuntimeTest(JUnitFragment.java:200)
	at org.eclipse.xtext.xtext.generator.junit.JUnitFragment.generate(JUnitFragment.java:146)
	at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)

	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.handleIssues(Mwe2Bridge.java:56)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:48)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	... 4 more


This must be related with MyDsl.xtext file having the below part: -
grammar org.xtext.example.mydsl.MyDsl with org.xtext.example.mydsl.MyDsl2


When I changed it to:
grammar org.xtext.example.mydsl.MyDsl2 with org.eclipse.xtext.common.Terminals

It runs fine. But How do I reuse rules of MyDsl2 in MyDsl if I do not have the 'with' clause for MyDsl2?

[Updated on: Wed, 19 December 2018 06:31]

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Re: Importing a xtext file to another xtext file in the same package [message #1800021 is a reply to message #1800019] Wed, 19 December 2018 07:13 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
please share you complete project

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800024 is a reply to message #1800021] Wed, 19 December 2018 07:47 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
Member
Here is the github link to my complete project : https://github.com/SharkJ/XtextInheritanceTest

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Re: Importing a xtext file to another xtext file in the same package [message #1800027 is a reply to message #1800024] Wed, 19 December 2018 08:16 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
the langs in the workflow are in the wrong order.
parent dsls have to come first

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800031 is a reply to message #1800027] Wed, 19 December 2018 08:35 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
Member
You are right! I changed the first standard language declaration in the mwe2 workflow to MyDsl2 and the next to MyDsl. I'll paste the workflow for anybody who'd get the same problem: -

module org.xtext.example.mydsl.GenerateMyDsl

import org.eclipse.xtext.xtext.generator.*
import org.eclipse.xtext.xtext.generator.model.project.*

var rootPath = ".."

Workflow {
	
	component = XtextGenerator {
		configuration = {
			project = StandardProjectConfig {
				baseName = "org.xtext.example.mydsl"
				rootPath = rootPath
				runtimeTest = {
					enabled = true
				}
				eclipsePlugin = {
					enabled = true
				}
				eclipsePluginTest = {
					enabled = true
				}
				createEclipseMetaData = true
			}
			code = {
				encoding = "windows-1252"
				lineDelimiter = "\r\n"
				fileHeader = "/*\n * generated by Xtext \${version}\n */"
			}
		}
		language = StandardLanguage {
			name = "org.xtext.example.mydsl.MyDsl2"
			referencedResource="platform:/resource/org.xtext.example.mydsl/src/org/xtext/example/mydsl/MyDsl.xtext"
			fileExtensions = "dsl2"

			serializer = {
				generateStub = false
			}
			validator = {
				// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
				generateDeprecationValidation = true
			}
			junitSupport = {
				junitVersion = "5"
			}
		}
		language = StandardLanguage {
			name = "org.xtext.example.mydsl.MyDsl"
			fileExtensions = "dsl"

			serializer = {
				generateStub = false
			}
			validator = {
				// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
				generateDeprecationValidation = true
			}
			junitSupport = {
				junitVersion = "5"
			}
		}
	}
}


MyDsl inherits from MyDsl2. It is possible to add inheritance to MyDsl2 as e.g:MyDsl3 by adding it before MyDsl2 in the workflow.

Thank You Christian for helping!

[Updated on: Wed, 19 December 2018 09:08]

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Re: Importing a xtext file to another xtext file in the same package [message #1800032 is a reply to message #1800031] Wed, 19 December 2018 08:59 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
yes you should be able to do that with n dsls

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800043 is a reply to message #1800032] Wed, 19 December 2018 10:27 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
Member
Hello again,

I have implemented this method to much complex grammar from which I get a different error when running the mwe2 workflow. I will list down the mwe2 workflow file and the beginnings of the two grammar files that I have and the error that I'm getting at the end.

mwe2 workflow: -

module org.xtext.example.projection.GenerateProjection

import org.eclipse.xtext.xtext.generator.*
import org.eclipse.xtext.xtext.generator.model.project.*

var rootPath = ".."

Workflow {
	
	component = XtextGenerator {
		configuration = {
			project = StandardProjectConfig {
				baseName = "org.xtext.projection"
				rootPath = rootPath
				runtimeTest = {
					enabled = true
				}
				eclipsePlugin = {
					enabled = true
				}
				eclipsePluginTest = {
					enabled = true
				}
				createEclipseMetaData = true
			}
			code = {
				encoding = "windows-1252"
				lineDelimiter = "\r\n"
				fileHeader = "/*\n * generated by Xtext \${version}\n */"
			}
		}
		language = StandardLanguage {
			name = "org.xtext.example.projection.Projection"
			referencedResource="platform:/resource/org.xtext.example.mydsl/src/org/xtext/example/projection/ProjectionMainParser.xtext"
			fileExtensions = "projection"

			serializer = {
				generateStub = false
			}
			validator = {
				// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
				generateDeprecationValidation = true
			}
			junitSupport = {
				junitVersion = "5"
			}
		}
		language = StandardLanguage {
			name = "org.xtext.example.projection.ProjectionMainParser"
			fileExtensions = "projection"

			serializer = {
				generateStub = false
			}
			validator = {
				// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
				generateDeprecationValidation = true
			}
			junitSupport = {
				junitVersion = "5"
			}
		}
	}
}


Projection.xtext (contains around 600 lines of code): -

grammar org.xtext.example.projection.Projection with org.eclipse.xtext.common.Terminals 

generate projection "http://www.xtext.org/example/projection/Projection"

Domainmodel:
	elements+=projection_name elements+=projection_component elements+=layer_specification
	elements+=description (elements+=MainElement)*
;

MainElement:
	capability | category | service_group |
	include_fragment | override | overtake  | referencedResource="platform:/resource/org.xtext.example.mydsl/src/org/xtext/example/projection/Projection.xtext"|
	singleton_set_definition | entity_set_definition | datasource_definition | summary_definition | 
	( abstract_def )? query_definition=query_definition | 
	( abstract_def )? virtual_definition=virtual_definition | enumeration_definition | 
	complextype_definition | function_definition | action_definition | user_filter_definition )* 
;
.
.
.


ProjectionMainParser.xtext (around 700 lines of code): -

grammar org.xtext.example.projection.ProjectionMainParser with org.xtext.example.projection.Projection //org.eclipse.xtext.common.Terminals

generate projectionMainParser "http://www.xtext.org/example/projection/ProjectionMainParser"

dynamic_projection_item
   : 'dynamic' dynamic_projection_item_dynamic_name=ID '(' ')' ';'
   ;


entity_set_definition
   : ( dynamic_component_dependency=dynamic_component_dependency )* 'entityset' entity_set_definition_entity_set_name=ID 'for' entity_set_definition_reference_object_name=ID ( '{' alt=( where_definition | offline_filter_definition | filtering_context_list_definition )+ '}' | ';' )
   ;

singleton_set_definition
   : ( dynamic_component_dependency=dynamic_component_dependency )* 'singleton' singleton_set_definition_singleton_name=ID ( 'for' singleton_set_definition_reference_object_name=ID '{' alt=where_definition '}' | '{' alt=( from_definition | where_definition | keys_definition | dataitem_definition | computeditem_definition | action_definition | function_definition | array_definition | aggregate_definition )* '}' )
   ;
.
.
.



The error I'm getting when trying to build the mwe2 workflow: -

0    [main] INFO  text.xtext.generator.XtextGenerator  - Initializing Xtext generator
7    [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
200  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.projection at 'file:/D:/XtextConversion_DONOTDELETE/Tests/TestProjectionInheritance/org.xtext.projection/'
201  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.projection.tests at 'file:/D:/XtextConversion_DONOTDELETE/Tests/TestProjectionInheritance/org.xtext.projection.tests/'
201  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.projection.ide at 'file:/D:/XtextConversion_DONOTDELETE/Tests/TestProjectionInheritance/org.xtext.projection.ide/'
201  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.projection.ui at 'file:/D:/XtextConversion_DONOTDELETE/Tests/TestProjectionInheritance/org.xtext.projection.ui/'
202  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.projection.ui.tests at 'file:/D:/XtextConversion_DONOTDELETE/Tests/TestProjectionInheritance/org.xtext.projection.ui.tests/'
208  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
364  [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher  - Problems running workflow org.xtext.example.projection.GenerateProjection: java.io.IOException: The path '/org.xtext.example.mydsl/src/org/xtext/example/projection/ProjectionMainParser.xtext' is unmapped
java.lang.RuntimeException: Problems running workflow org.xtext.example.projection.GenerateProjection: java.io.IOException: The path '/org.xtext.example.mydsl/src/org/xtext/example/projection/ProjectionMainParser.xtext' is unmapped
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:104)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: java.io.IOException: The path '/org.xtext.example.mydsl/src/org/xtext/example/projection/ProjectionMainParser.xtext' is unmapped
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:319)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:278)
	at org.eclipse.xtext.resource.XtextResourceSet.getResource(XtextResourceSet.java:265)
	at org.eclipse.xtext.xtext.generator.XtextGeneratorResourceSetInitializer.loadResource(XtextGeneratorResourceSetInitializer.java:51)
	at org.eclipse.xtext.xtext.generator.XtextGeneratorResourceSetInitializer.lambda$initialize$0(XtextGeneratorResourceSetInitializer.java:41)
	at java.util.ArrayList.forEach(Unknown Source)
	at org.eclipse.xtext.xtext.generator.XtextGeneratorResourceSetInitializer.initialize(XtextGeneratorResourceSetInitializer.java:43)
	at org.eclipse.xtext.xtext.generator.XtextGeneratorLanguage.initialize(XtextGeneratorLanguage.java:218)
	at org.eclipse.xtext.xtext.generator.StandardLanguage.initialize(StandardLanguage.java:189)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.initialize(XtextGenerator.java:185)
	at org.eclipse.xtext.xtext.generator.XtextGenerator.checkConfigurationInternal(XtextGenerator.java:139)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent2.checkConfiguration(AbstractWorkflowComponent2.java:21)
	at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.preInvoke(Mwe2Bridge.java:65)
	at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.preInvoke(AbstractWorkflowComponent.java:197)
	at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.preInvoke(AbstractCompositeWorkflowComponent.java:29)
	at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:18)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
	... 4 more
Caused by: java.io.IOException: The path '/org.xtext.example.mydsl/src/org/xtext/example/projection/ProjectionMainParser.xtext' is unmapped
	at org.eclipse.emf.ecore.resource.impl.PlatformResourceURIHandlerImpl.createInputStream(PlatformResourceURIHandlerImpl.java:535)
	at org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl.createInputStream(ExtensibleURIConverterImpl.java:360)
	at org.eclipse.xtext.resource.XtextResourceSet$1.createInputStream(XtextResourceSet.java:298)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1314)
	at org.eclipse.xtext.resource.persistence.StorageAwareResource.load(StorageAwareResource.java:79)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
	... 19 more


Would you kindly be able to help?

Thank You!

[Updated on: Wed, 19 December 2018 10:29]

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Re: Importing a xtext file to another xtext file in the same package [message #1800046 is a reply to message #1800043] Wed, 19 December 2018 10:28 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
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can you provide a sample on github/gitlab

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Re: Importing a xtext file to another xtext file in the same package [message #1800048 is a reply to message #1800046] Wed, 19 December 2018 10:50 Go to previous messageGo to next message
P J is currently offline P JFriend
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Here is a sample from my project https://github.com/SharkJ/sample.git

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Re: Importing a xtext file to another xtext file in the same package [message #1800058 is a reply to message #1800048] Wed, 19 December 2018 11:54 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
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if your project name is example.projection you should use that
referencedResource="platform:/resource/org.xtext.example.projection/src/org/xtext/example/projection/ProjectionMainParser.xtext"
here
if you have ambiguities you have to fix them

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Re: Importing a xtext file to another xtext file in the same package [message #1800214 is a reply to message #1800058] Fri, 21 December 2018 12:29 Go to previous messageGo to next message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
Member
I have everything done now, There are no visible errors. But when I generate the xtext artifacts, my console does not go any further than below: -

0    [main] INFO  text.xtext.generator.XtextGenerator  - Initializing Xtext generator
7    [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
244  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl at 'file:/D:/XtextConversion_DONOTDELETE/ProjectionMainParser/org.xtext.example.mydsl/'
244  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.tests at 'file:/D:/XtextConversion_DONOTDELETE/ProjectionMainParser/org.xtext.example.mydsl.tests/'
244  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ide at 'file:/D:/XtextConversion_DONOTDELETE/ProjectionMainParser/org.xtext.example.mydsl.ide/'
245  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ui at 'file:/D:/XtextConversion_DONOTDELETE/ProjectionMainParser/org.xtext.example.mydsl.ui/'
245  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Registering project org.xtext.example.mydsl.ui.tests at 'file:/D:/XtextConversion_DONOTDELETE/ProjectionMainParser/org.xtext.example.mydsl.ui.tests/'
251  [main] INFO  lipse.emf.mwe.utils.StandaloneSetup  - Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
448  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/Xtext/Xbase/XAnnotations' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
452  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/xbase/Xtype' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
463  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/xbase/Xbase' from 'platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel'
463  [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.eclipse.org/xtext/common/JavaVMTypes' from 'platform:/resource/org.eclipse.xtext.common.types/model/JavaVMTypes.genmodel'
2349 [main] INFO  text.xtext.generator.XtextGenerator  - Generating org.xtext.example.mydsl.MyDsl
10213 [main] INFO  nerator.ecore.EMFGeneratorFragment2  - Generating EMF model code
10286 [main] INFO  clipse.emf.mwe.utils.GenModelHelper  - Registered GenModel 'http://www.xtext.org/example/mydsl/MyDsl' from 'platform:/resource/org.xtext.example.mydsl/model/generated/MyDsl.genmodel'


i.e, I do not get 'Done' at the end.
However, I know that the below part of the Projection.xtext file (in the sample I have given before) is the reason for this. This problem did not occur before implementing the below part of code: -

offline_expression
   : offline_or_expression=offline_or_expression
   ;

offline_or_expression
   : offline_and_expression=offline_and_expression ( 'or' offline_and_expression2=offline_and_expression )*
   ;

offline_and_expression
   : offline_equals_expression=offline_equals_expression ( 'and' offline_equals_expression2=offline_equals_expression )*
   ;

offline_equals_expression
   : offline_not_equals_expression=offline_not_equals_expression ( '=' offline_not_equals_expression2=offline_not_equals_expression )*
   ;

offline_not_equals_expression
   : offline_greater_expression=offline_greater_expression ( '!=' offline_greater_expression2=offline_greater_expression )*
   ;

offline_greater_expression
   : offline_less_than_equals_expression=offline_less_than_equals_expression ( '>' offline_less_than_equals_expression2=offline_less_than_equals_expression )*
   ;

offline_less_than_equals_expression
   : offline_greater_equals_expression=offline_greater_equals_expression ( '<=' offline_greater_equals_expression2=offline_greater_equals_expression )*
   ;

offline_greater_equals_expression
   : offline_less_than_expression=offline_less_than_expression ( '>=' offline_less_than_expression2=offline_less_than_expression )*
   ;

offline_less_than_expression
   : offline_subtraction_expression=offline_subtraction_expression ( '<' offline_subtraction_expression2=offline_subtraction_expression )*
   ;

offline_subtraction_expression
   : offline_addition_expression=offline_addition_expression ( '-' offline_addition_expression2=offline_addition_expression )*
   ;

offline_addition_expression
   : offline_multiplication_expression=offline_multiplication_expression ( '+' offline_multiplication_expression2=offline_multiplication_expression )*
   ;

offline_multiplication_expression
   : offline_division_expression=offline_division_expression ( '*' offline_division_expression2=offline_division_expression )*
   ;

offline_division_expression
   : offline_mod_expression=offline_mod_expression ( '/' offline_mod_expression2=offline_mod_expression)*
   ;

offline_mod_expression
   : offline_in_expression=offline_in_expression ( '%' offline_in_expression2=offline_in_expression )*
   ;

offline_in_expression
   : ( offline_not_expression=offline_not_expression ( 'in' offline_not_expression2=offline_not_expression )* )
   ;

offline_not_expression
   : ( '!' )? offline_boolean_expression=offline_boolean_expression
   ;

offline_boolean_expression
   : ( offline_method_call_expression=offline_method_call_expression | alt=( 'true' | 'false' ) )
   ;

offline_method_call_expression
   : ( offline_expression_atom=offline_expression_atom | ( offline_method_call_expression_referenced_name=offline_method_call_expression_referenced_name ( '(' ')' | '(' offline_expression=offline_expression ( ',' offline_expression2=offline_expression )* ')' )* ) )
   ;

offline_method_call_expression_referenced_name
   : {offline_method_call_expression_referenced_name} ( 'record' '.' )? ( identifier=identifier | CAMELCASE_IDENTIFIER ) ( '.' ( identifier2=identifier | CAMELCASE_IDENTIFIER ) )*
   ;

offline_expression_atom
   : ( '(' offline_expression=offline_expression ( ',' offline_expression2=offline_expression )* ')' | {offline_expression_atom} ( '-' )? INT | {offline_expression_atom} ( '-' )? DECIMAL | {offline_expression_atom} STRING | offline_expression_atom_reference_name=offline_expression_atom_reference_name | {offline_expression_atom} 'null' )
   ;

offline_expression_atom_reference_name
   : {offline_expression_atom_reference_name} ( 'record' '.' )? ( identifier=identifier | CAMELCASE_IDENTIFIER ) ( '.' ( identifier2=identifier | CAMELCASE_IDENTIFIER ) )*
   ;
   
terminal CAMELCASE_IDENTIFIER
   : ('a'..'z') ('A'..'Z'|'a'..'z'|'0'..'9'|'_'|'$'|'#')*
   ;

terminal DECIMAL
   : ( ('0'..'9')+ '.' ('0'..'9')+ )
   ;

identifier
   : Name=(ID
   | 'All'
   | 'Alpha'
   | 'Batch'
   | 'Binary'
   | 'Boolean'
   | 'ClientCache'
   | 'Create'
   | 'Custom'
   | 'Date'
   | 'Delete'
   | 'ETag'
   | 'Entity'
   | 'EntityState'
   | 'Enumeration'
   | 'Equal'
   | 'ExternalB2B'
   | 'False'
   | 'Fri'
   | 'GUID'
   | 'Greater'
   | 'GreaterOrEqual'
   | 'GroupedPush'
   | 'Identity'
   | 'Incoming'
   | 'Integer'
   | 'Integration'
   | 'Like'
   | 'List'
   | 'LongText'
   | 'Lookup'
   | 'Lower'
   | 'LowerOrEqual'
   | 'Mobility'
   | 'Mon'
   | 'None'
   | 'Null'
   | 'Number'
   | 'Offline'
   | 'Online'
   | 'OnlineOnly'
   | 'Push'
   | 'Read'
   | 'Reporting'
   | 'Sat'
   | 'Standard'
   | 'StateChange'
   | 'Stream'
   | 'Structure'
   | 'Sun'
   | 'Text'
   | 'Thu'
   | 'Time'
   | 'Timestamp'
   | 'True'
   | 'Tue'
   | 'Update'
   | 'Users'
   | 'Wed')
   ;


P.S. The 'identifier' rule without the other parts, did not cause any problem.

Would you kindly be able to help?

Thank You!

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Re: Importing a xtext file to another xtext file in the same package [message #1800217 is a reply to message #1800214] Fri, 21 December 2018 13:09 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
Does it crash or hang

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Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800219 is a reply to message #1800217] Fri, 21 December 2018 13:34 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
am getting As a result, alternative(s) 2 were disabled for that input
error(201): ../org.xtext.example.mydsl/src-gen/org/xtext/example/mydsl/parser/antlr/internal/InternalMyDsl.g:1106:2: The following alternatives can never be matched: 2
which should give you an hint

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Re: Importing a xtext file to another xtext file in the same package [message #1800220 is a reply to message #1800219] Fri, 21 December 2018 13:44 Go to previous messageGo to next message
Christian Dietrich is currently online Christian DietrichFriend
Messages: 14673
Registered: July 2009
Senior Member
here is a minified grammar showing the same problem

offline_expression:
offline_or_expression=offline_method_call_expression;

offline_method_call_expression:
(offline_expression_atom=offline_expression_atom |
(offline_method_call_expression_referenced_name=offline_method_call_expression_referenced_name ('(' ')' | '('
offline_expression=offline_expression (',' offline_expression2=offline_expression)* ')')*));

offline_method_call_expression_referenced_name:
{offline_method_call_expression_referenced_name} ('record' '.')? (identifier=ID) ('.'
identifier2=ID)*;

offline_expression_atom:
(offline_expression_atom_reference_name=offline_expression_atom_reference_name
|
{offline_expression_atom} 'null');

offline_expression_atom_reference_name:
{offline_expression_atom_reference_name} ('record' '.')? (identifier=ID) ('.'
identifier2=ID)*;

you can add

parseGenerator{debugGrammar=true} to the workflow and have a look at the grammar with antlrworks

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Importing a xtext file to another xtext file in the same package [message #1800301 is a reply to message #1800220] Mon, 24 December 2018 03:47 Go to previous message
P J is currently offline P JFriend
Messages: 64
Registered: October 2018
Member
Hi Christian,
Thank you! I added to the parserGenerator as you suggested. I also added to the same this part :-
 options = {
		backtrack = true
}


Once backtracking is turned on, the code generates without any prior errors. My language works very well now. Is this a recommended measure to take?

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