I wanted to lern xtext, for many years i lerned xpand and xtend and worked fine, but xtext seems to replaced the other both. And the xtext way looks fine to me.
As start i read follwing Tutorials: http://www.eclipse.org/Xtext/documentation/101_five_minutes.html, Including "15 Minutes Tutorial" and "15 Minutes Tutorial - Extended" and others. So i created a simple "Model"
grammar org.bs.test.Test with org.eclipse.xtext.common.Terminals
generate Test "http://www.bs.org/test/Test"
Test:
main=TMain;
TMain:
'main' name=ID
'done';
Generated on following way: "GenerateTest.mwe2" > right click > 'Run As' → 'MWE2 Workflow'.
Then made a copy of the Project. It was already my second or third try to find out what i made wrong.
Now i changed in the model following line: "main=TMain;" to "main=TMain?;". Then i used 'MWE2 Workflow' again, which run successful, but after running following happens: Everthing files under 'src-gen/org/bs/test/Test/' and files in the subfolders 'impl' and 'util' are deleted. So they get deleted, then i copied the saved project and try following action on "Test.xtext" > right click > 'Run As' → 'Generate Xtext Artifacts', which result in the same.
There are two question for me: 1) What is the difference between "Generate Xtext Artifacts" and "MWE2 Workflow" and when did i do need them. I cannot figure that out on the Tutorial and especialy when to use them. 2) What did i wrong, and what i have to do to create generate the elements from the changed model
I could not find much on this, i hope someone could help me. I did not find something to both question.
EDIT 1:
When i create a complete new test project it works:
project name: org.test
name: org.test.MyTest
extensions: mytest
with following xtext:
grammar org.test.MyTest with org.eclipse.xtext.common.Terminals
generate myTest "http://www.test.org/MyTest"
Test:
main=TMain;
TMain:
'main' name=ID
'done'
But when i do the same with following input:
Project name: org.bs.craass
Name: org.bs.craass.CraAss
Extension: craass
xtext:
grammar org.bs.craass.CraAss with org.eclipse.xtext.common.Terminals
generate craAss "http://www.bs.org/craass/CraAss"
CraAss:
main=CAMain;
CAMain:
'main' name=ID
'done';
Later i will try following: install a new eclispe emf and create a new workspace.
EDIT2:
So i tested a new workspace, there it look liks, that it is working. Perhaps something with the old workspace. Like in a comment, in the orginal workspace, after i get a good "version", i wanted to put it on git (learning reason). Since then this not working anymore. Here some output of the generation:
0 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Registering platform uri 'C:\workspaces\emf_01'
401 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass at 'file:/C:/workspaces/emf_01/org.bs.craass/' and using 'file:/C:/workspaces/emf_01/error_01/org.bs.craass/' instead.
926 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass at 'file:/C:/workspaces/emf_01/error_01/org.bs.craass/' and using 'file:/C:/workspaces/emf_01/org.bs.craass/' instead.
939 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass.sdk at 'file:/C:/workspaces/emf_01/error_01/org.bs.craass.sdk/' and using 'file:/C:/workspaces/emf_01/org.bs.craass.sdk/' instead.
970 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass.tests at 'file:/C:/workspaces/emf_01/error_01/org.bs.craass.tests/' and using 'file:/C:/workspaces/emf_01/org.bs.craass.tests/' instead.
1090 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass.ui at 'file:/C:/workspaces/emf_01/error_01/org.bs.craass.ui/' and using 'file:/C:/workspaces/emf_01/org.bs.craass.ui/' instead.
1749 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass at 'file:/C:/workspaces/emf_01/org.bs.craass/' and using 'file:/C:/workspaces/emf_01/save_01/org.bs.craass/' instead.
1762 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass.sdk at 'file:/C:/workspaces/emf_01/org.bs.craass.sdk/' and using 'file:/C:/workspaces/emf_01/save_01/org.bs.craass.sdk/' instead.
1820 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass.tests at 'file:/C:/workspaces/emf_01/org.bs.craass.tests/' and using 'file:/C:/workspaces/emf_01/save_01/org.bs.craass.tests/' instead.
2082 [main] WARN lipse.emf.mwe.utils.StandaloneSetup - Skipping conflicting project org.bs.craass.ui at 'file:/C:/workspaces/emf_01/org.bs.craass.ui/' and using 'file:/C:/workspaces/emf_01/save_01/org.bs.craass.ui/' instead.
2577 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.xbase.XbasePackage'
4253 [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'
4265 [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'
4335 [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'
4335 [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'
6234 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
6267 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf_01\org.bs.craass\..\org.bs.craass\src-gen
6326 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf_01\org.bs.craass\..\org.bs.craass\model\generated
6330 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf_01\org.bs.craass\..\org.bs.craass.ui\src-gen
6378 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf_01\org.bs.craass\..\org.bs.craass.tests\src-gen
9146 [main] INFO clipse.emf.mwe.utils.GenModelHelper - Registered GenModel 'http://www.bs.org/craass/CraAss' from 'file:/C:/workspaces/emf_01/org.bs.craass/model/generated/CraAss.genmodel'
15709 [main] INFO text.generator.junit.Junit4Fragment - generating Junit4 Test support classes
15731 [main] INFO text.generator.junit.Junit4Fragment - generating Compare Framework infrastructure
15973 [main] INFO .emf.mwe2.runtime.workflow.Workflow - Done.
I compared with a run in a other workspace, and the WARN, does not come there. To be hornest, i ignored first, because it was "only" warnings. A run that runs successful:
0 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Registering platform uri 'C:\workspaces\emf'
541 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.xbase.XbasePackage'
1020 [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'
1031 [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'
1064 [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'
1064 [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'
2307 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
2355 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass\src-gen
2382 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass\model\generated
2390 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass.ui\src-gen
2407 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass.tests\src-gen
4446 [main] INFO clipse.emf.mwe.utils.GenModelHelper - Registered GenModel 'http://www.bs.org/craass/CraAss' from 'platform:/resource/org.bs.craass/model/generated/CraAss.genmodel'
11647 [main] INFO text.generator.junit.Junit4Fragment - generating Junit4 Test support classes
11719 [main] INFO text.generator.junit.Junit4Fragment - generating Compare Framework infrastructure
11997 [main] INFO .emf.mwe2.runtime.workflow.Workflow - Done.
So far the stand of my troubleshooting.
EDIT 3:
I do not know why, but it accept now the old xtext file i created and while running it occurs following error (but seems to have no big impact), complete log:
0 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Registering platform uri 'C:\workspaces\emf'
664 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.xbase.XbasePackage'
1864 [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'
1882 [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'
1987 [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'
1987 [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'
3982 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
4018 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass\src-gen
4061 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass\model\generated
4064 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass.ui\src-gen
4087 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\workspaces\emf\org.bs.craass\..\org.bs.craass.tests\src-gen
7153 [main] INFO clipse.emf.mwe.utils.GenModelHelper - Registered GenModel 'http://www.bs.org/craass/CraAss' from 'platform:/resource/org.bs.craass/model/generated/CraAss.genmodel'
error(208): ../org.bs.craass/src-gen/org/bs/craass/parser/antlr/internal/InternalCraAss.g:1199:1: The following token definitions can never be matched because prior tokens match the same input: RULE_INT
error(208): ../org.bs.craass.ui/src-gen/org/bs/craass/ui/contentassist/antlr/internal/InternalCraAss.g:2688:1: The following token definitions can never be matched because prior tokens match the same input: RULE_INT
16642 [main] INFO text.generator.junit.Junit4Fragment - generating Junit4 Test support classes
16661 [main] INFO text.generator.junit.Junit4Fragment - generating Compare Framework infrastructure
16804 [main] INFO .emf.mwe2.runtime.workflow.Workflow - Done.
The trouble seems, that i have following:
grammar org.bs.craass.CraAss with org.eclipse.xtext.common.Terminals
but on the other side:
terminal INTEGER : '-'?('0'..'9')+;
terminal VAR_TERMINAL : '_' ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*;
terminal REGISTER_TERMINAL : ('ax' | 'bx' );
terminal FUNCTION_TERMINAL : (('a'..'z'|'_'|'0'..'9')*'.')?('a'..'z'|'A'..'Z'|'_'|'0'..'9')*;
And in the org.eclipse.xtext.common.Terminals is
terminal INT returns ecore::EInt: ('0'..'9')+;
But i have no what to do with it.
The Problem itself, while generating everthing in srce-gen/, except the generated java files under src-gen/org.bs.craass.craAss and subfolder. Now there are created, too. So more i try to find out, so less the error was reproducable. Well, i will see, when i push it to git again, perhaps the error comes back.
So far thanks
