|
|
| Re: Example for Semantic Refactoring [message #1796288 is a reply to message #1796286] |
Tue, 09 October 2018 15:54   |
 Lukas Schaus
Messages: 37
Registered: October 2016 |
Member |
|
|
Thank you for your fast reply.
I know that I can rename elements using alt + shift + r in the editor and I guess that somehow the Methods in the classes you pointed me to are called.
But I would like to develop an api that I will call headlessly.
i tryed to develop a minimal working example:
Consider this Grammar
grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals
generate myDsl "http://www.xtext.org/example/mydsl/MyDsl"
Model:
person+=Person*
groups+= Group*;
Person:
Student | Teacher
;
Group:
StudentGroup | TeacherGroup
;
Student:
'student' name=ID
;
Teacher:
'teacher' name=ID
;
StudentGroup:
'students' name=ID '{' members+=[Student|ID] (',' members+=[Student|ID])* '}'
;
TeacherGroup:
'teachers' name=ID '{' members+=[Teacher|ID] (',' members+=[Teacher|ID])* '}'
;
And these .mydsl files:
a.mydsl
student Paule
student /*here is a comment*/ Asterix
teacher Asterix
students allStudents {
Paule,
Asterix,
Miracolix
}
teachers allTeachers {
Asterix
}
b.mydsl
Now I want to have a java function that takes a number of resources and performs renaming of students
so calling renameStudents('a.mydsl', 'b.mydsl', 'Asterix', 'Obelix')
The function should modify the given resources and the files should look like this
a_new.mydsl
student Paule
student /*here is a comment*/ Obelix
teacher Asterix
students allStudents {
Paule,
Obelix,
Miracolix
}
teachers allTeachers {
Asterix
}
b.mydsl
Also i could imagine more semantic adjustments that are a little more complex than renaming.
[Updated on: Tue, 09 October 2018 15:57] Report message to a moderator |
|
|
|
|
|
| Re: Example for Semantic Refactoring [message #1796362 is a reply to message #1796357] |
Thu, 11 October 2018 15:37 |
|
here is a very pure and incomplete example
Model:
greetings+=Greeting*;
Greeting:
'Hello' name=ID ('from' from=[Greeting]) ? '!';
package org.xtext.example.mydsl3.tests
import com.google.inject.Inject
import com.google.inject.Provider
import java.io.ByteArrayOutputStream
import org.apache.log4j.Logger
import org.eclipse.emf.common.util.URI
import org.eclipse.emf.ecore.EObject
import org.eclipse.emf.ecore.resource.ResourceSet
import org.eclipse.emf.ecore.util.EcoreUtil
import org.eclipse.xtext.ide.refactoring.IRenameStrategy2
import org.eclipse.xtext.ide.refactoring.RefactoringIssueAcceptor
import org.eclipse.xtext.ide.refactoring.RenameChange
import org.eclipse.xtext.ide.refactoring.RenameContext
import org.eclipse.xtext.ide.serializer.IChangeSerializer
import org.eclipse.xtext.ide.serializer.IEmfResourceChange
import org.eclipse.xtext.testing.InjectWith
import org.eclipse.xtext.testing.extensions.InjectionExtension
import org.eclipse.xtext.testing.util.ParseHelper
import org.eclipse.xtext.util.ITextRegion
import org.junit.jupiter.api.Assertions
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.^extension.ExtendWith
import org.xtext.example.mydsl3.myDsl.Model
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.resource.IResourceServiceProvider
import org.eclipse.xtext.ide.serializer.ITextDocumentChange
@ExtendWith(InjectionExtension)
@InjectWith(MyDslInjectorProvider)
class MyDslParsingTest {
@Inject
ParseHelper<Model> parseHelper
@Inject
Provider<IChangeSerializer> changeSerializerProvider
@Inject
IRenameStrategy2 renameStrategy
@Inject
IResourceServiceProvider.Registry registry
@Test
def void loadModel() {
var model = '''
Hello Xtext!
Hello World from Xtext!
'''
val result = parseHelper.parse(model)
Assertions.assertNotNull(result)
val errors = result.eResource.errors
val resourceSet = result.eResource.resourceSet
Assertions.assertTrue(errors.isEmpty, '''Unexpected errors: ?errors.join(", ")?''')
val g0 = result.greetings.head
val RefactoringIssueAcceptor issueAcceptor = new RefactoringIssueAcceptor() {
override add(Severity severity, String message, URI resourceUri) {
throw new UnsupportedOperationException("TODO: auto-generated method stub")
}
override add(Severity severity, String message, EObject element) {
throw new UnsupportedOperationException("TODO: auto-generated method stub")
}
override add(Severity severity, String message, Object... params) {
throw new UnsupportedOperationException("TODO: auto-generated method stub")
}
override add(Severity severity, String message, URI uri, ResourceSet resourceSet) {
throw new UnsupportedOperationException("TODO: auto-generated method stub")
}
override add(Severity severity, String message, EObject element, ITextRegion region) {
throw new UnsupportedOperationException("TODO: auto-generated method stub")
}
override add(Severity severity, String message, Exception exc, Logger log) {
throw new UnsupportedOperationException("TODO: auto-generated method stub")
}
}
val change = new RenameChange(g0.name + "2", EcoreUtil.getURI(g0))
val changeSerializer = changeSerializerProvider.get
val context = new RenameContext(#[change], resourceSet, changeSerializer, issueAcceptor)
renameStrategy.applyRename(context)
val model2 = new StringBuilder(model)
changeSerializer.applyModifications [
e| println(e.class)
if (e instanceof ITextDocumentChange) {
for (r : e.replacements.sortBy[r|r.endOffset].reverse) {
model2.replace(r.offset, r.offset+r.length, r.replacementText);
}
} else {
//TODO handle this case. see org.eclipse.xtext.ide.server.rename.ChangeConverter._handleReplacements(IEmfResourceChange)
}
]
println(model2)
}
}
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de
|
|
|
|
|
|
|
Powered by
FUDForum. Page generated in 0.04138 seconds
] 
Search
Help
Register
Login
Home
