org.eclipse.lsp4j.VersionedTextDocumentIdentifier Java Examples

private void changeOpenedFile(FileURI fileURI, Function<String, String> modification,
		BiFunction<String, String, List<TextDocumentContentChangeEvent>> changeComputer) {
	if (!isOpen(fileURI)) {
		Assert.fail("file is not open: " + fileURI);
	}
	// 1) change in memory (i.e. in map 'openFiles')
	OpenFileInfo info = openFiles.get(fileURI);
	int oldVersion = info.version;
	String oldContent = info.content;
	int newVersion = oldVersion + 1;
	String newContent = modification.apply(oldContent);
	Assert.assertNotNull(newContent);
	info.version = newVersion;
	info.content = newContent;
	// 2) notify LSP server
	VersionedTextDocumentIdentifier docId = new VersionedTextDocumentIdentifier(fileURI.toString(), newVersion);
	List<TextDocumentContentChangeEvent> changes = changeComputer.apply(oldContent, newContent);
	DidChangeTextDocumentParams params = new DidChangeTextDocumentParams(docId, changes);
	languageServer.didChange(params);
}
 

private void changeDocument(ICompilationUnit cu, String content, int version, Range range, int length) throws JavaModelException {
	DidChangeTextDocumentParams changeParms = new DidChangeTextDocumentParams();
	VersionedTextDocumentIdentifier textDocument = new VersionedTextDocumentIdentifier();
	textDocument.setUri(JDTUtils.toURI(cu));
	textDocument.setVersion(version);
	changeParms.setTextDocument(textDocument);
	TextDocumentContentChangeEvent event = new TextDocumentContentChangeEvent();
	if (range != null) {
		event.setRange(range);
		event.setRangeLength(length);
	}
	event.setText(content);
	List<TextDocumentContentChangeEvent> contentChanges = new ArrayList<>();
	contentChanges.add(event);
	changeParms.setContentChanges(contentChanges);
	lifeCycleHandler.didChange(changeParms);
}
 

private void closeFile(FileURI fileURI, boolean discardChanges) {
	if (!isOpen(fileURI)) {
		Assert.fail("trying to close a file that is not open: " + fileURI);
	}
	boolean dirty = isDirty(fileURI);
	if (dirty && !discardChanges) {
		Assert.fail("trying to close a file with unsaved changes: " + fileURI);
	} else if (!dirty && discardChanges) {
		Assert.fail("no unsaved changes to discard in file: " + fileURI);
	}

	OpenFileInfo info = openFiles.remove(fileURI);
	if (dirty) {
		// when closing a file with unsaved changes, LSP clients send a 'textDocument/didChange' to bring its
		// content back to the content on disk
		String contentOnDisk = getContentOfFileOnDisk(fileURI);
		DidChangeTextDocumentParams params = new DidChangeTextDocumentParams(
				new VersionedTextDocumentIdentifier(fileURI.toString(), info.version + 1),
				Collections.singletonList(new TextDocumentContentChangeEvent(contentOnDisk)));
		languageServer.didChange(params);
	}
	languageServer.didClose(new DidCloseTextDocumentParams(new TextDocumentIdentifier(fileURI.toString())));
	joinServerRequests();
}
 

public static CodeAction replaceAt(String title, String replaceText, TextDocumentItem document,
		Diagnostic diagnostic, Collection<Range> ranges) {
	CodeAction insertContentAction = new CodeAction(title);
	insertContentAction.setKind(CodeActionKind.QuickFix);
	insertContentAction.setDiagnostics(Arrays.asList(diagnostic));

	VersionedTextDocumentIdentifier versionedTextDocumentIdentifier = new VersionedTextDocumentIdentifier(
			document.getUri(), document.getVersion());
	List<TextEdit> edits = new ArrayList<TextEdit>();
	for (Range range : ranges) {
		TextEdit edit = new TextEdit(range, replaceText);
		edits.add(edit);
	}
	TextDocumentEdit textDocumentEdit = new TextDocumentEdit(versionedTextDocumentIdentifier, edits);
	WorkspaceEdit workspaceEdit = new WorkspaceEdit(Collections.singletonList(Either.forLeft(textDocumentEdit)));

	insertContentAction.setEdit(workspaceEdit);
	return insertContentAction;
}
 

/**
 * Makes a CodeAction to create a file and add content to the file.
 * 
 * @param title      The displayed name of the CodeAction
 * @param docURI     The file to create
 * @param content    The text to put into the newly created document.
 * @param diagnostic The diagnostic that this CodeAction will fix
 */
public static CodeAction createFile(String title, String docURI, String content, Diagnostic diagnostic) {

	List<Either<TextDocumentEdit, ResourceOperation>> actionsToTake = new ArrayList<>(2);

	// 1. create an empty file
	actionsToTake.add(Either.forRight(new CreateFile(docURI, new CreateFileOptions(false, true))));

	// 2. update the created file with the given content
	VersionedTextDocumentIdentifier identifier = new VersionedTextDocumentIdentifier(docURI, 0);
	TextEdit te = new TextEdit(new Range(new Position(0, 0), new Position(0, 0)), content);
	actionsToTake.add(Either.forLeft(new TextDocumentEdit(identifier, Collections.singletonList(te))));

	WorkspaceEdit createAndAddContentEdit = new WorkspaceEdit(actionsToTake);

	CodeAction codeAction = new CodeAction(title);
	codeAction.setEdit(createAndAddContentEdit);
	codeAction.setDiagnostics(Collections.singletonList(diagnostic));
	codeAction.setKind(CodeActionKind.QuickFix);

	return codeAction;
}
 

protected void changeDocument(ICompilationUnit unit, String content, int version, Range range, int length) {
	DidChangeTextDocumentParams changeParms = new DidChangeTextDocumentParams();
	VersionedTextDocumentIdentifier textDocument = new VersionedTextDocumentIdentifier();
	textDocument.setUri(JDTUtils.toURI(unit));
	textDocument.setVersion(version);
	changeParms.setTextDocument(textDocument);
	TextDocumentContentChangeEvent event = new TextDocumentContentChangeEvent();
	if (range != null) {
		event.setRange(range);
		event.setRangeLength(length);
	}
	event.setText(content);
	List<TextDocumentContentChangeEvent> contentChanges = new ArrayList<>();
	contentChanges.add(event);
	changeParms.setContentChanges(contentChanges);
	lifeCycleHandler.didChange(changeParms);
}
 

@Test
void testChangeEventUpdatesStoredText() throws Exception {
	CamelLanguageServer camelLanguageServer = initializeLanguageServer("<to uri=\"\" xmlns=\"http://camel.apache.org/schema/blueprint\"></to>\n");
	
	DidChangeTextDocumentParams changeEvent = new DidChangeTextDocumentParams();
	VersionedTextDocumentIdentifier textDocument = new VersionedTextDocumentIdentifier();
	textDocument.setUri(DUMMY_URI+".xml");
	changeEvent.setTextDocument(textDocument);
	TextDocumentContentChangeEvent contentChange = new TextDocumentContentChangeEvent("<to xmlns=\"http://camel.apache.org/schema/blueprint\" uri=\"\"></to>\n");
	changeEvent.setContentChanges(Collections.singletonList(contentChange));
	camelLanguageServer.getTextDocumentService().didChange(changeEvent);
	
	//check old position doesn't provide completion
	CompletableFuture<Either<List<CompletionItem>, CompletionList>> completionsAtOldPosition = getCompletionFor(camelLanguageServer, new Position(0, 11));
	assertThat(completionsAtOldPosition.get().getLeft()).isEmpty();
	
	//check new position provides completion
	CompletableFuture<Either<List<CompletionItem>, CompletionList>> completionsAtNewPosition = getCompletionFor(camelLanguageServer, new Position(0, 58));
	assertThat(completionsAtNewPosition.get().getLeft()).isNotEmpty();
	
}
 

public VersionedTextDocumentIdentifier read(final JsonReader in) throws IOException {
  JsonToken nextToken = in.peek();
  if (nextToken == JsonToken.NULL) {
  	return null;
  }
  
  VersionedTextDocumentIdentifier result = new VersionedTextDocumentIdentifier();
  in.beginObject();
  while (in.hasNext()) {
  	String name = in.nextName();
  	switch (name) {
  	case "version":
  		result.setVersion(readVersion(in));
  		break;
  	case "uri":
  		result.setUri(readUri(in));
  		break;
  	default:
  		in.skipValue();
  	}
  }
  in.endObject();
  return result;
}
 

protected void changeDocument(ICompilationUnit unit, int version, TextDocumentContentChangeEvent event, TextDocumentContentChangeEvent... rest) {
	DidChangeTextDocumentParams changeParms = new DidChangeTextDocumentParams();
	VersionedTextDocumentIdentifier textDocument = new VersionedTextDocumentIdentifier();
	textDocument.setUri(JDTUtils.toURI(unit));
	textDocument.setVersion(version);
	changeParms.setTextDocument(textDocument);
	changeParms.setContentChanges(Lists.asList(event, rest));
	lifeCycleHandler.didChange(changeParms);
}
 

public BasicDocument(ImageClass imageClass, LanguageServerWrapper lsWrapper) {
    this.file = imageClass.getInputImage();
    this.imageClass = imageClass;
    this.lsWrapper = lsWrapper;
    this.requestManager = lsWrapper.getRequestManager();
    this.hiddenClone = new File(file.getAbsolutePath().replaceAll("\\.png$", ""));

    this.text = imageClass.getText();

    this.changesParams = new DidChangeTextDocumentParams(new VersionedTextDocumentIdentifier(),
            Collections.singletonList(new TextDocumentContentChangeEvent()));

    changesParams.getTextDocument().setUri(getURI());
}
 

public List<Position> install(ICompilationUnit unit) throws JavaModelException, BadPositionCategoryException {
	if (enabled.get()) {
		List<HighlightedPositionCore> positions = calculateHighlightedPositions(unit, false);
		String uri = JDTUtils.getFileURI(unit.getResource());
		this.cache.put(uri, positions);
		if (!positions.isEmpty()) {
			IDocument document = JsonRpcHelpers.toDocument(unit.getBuffer());
			List<SemanticHighlightingInformation> infos = toInfos(document, positions);
			VersionedTextDocumentIdentifier textDocument = new VersionedTextDocumentIdentifier(uri, 1);
			notifyClient(textDocument, infos);
		}
		return ImmutableList.copyOf(positions);
	}
	return emptyList();
}
 

public void update(VersionedTextDocumentIdentifier textDocument, List<HighlightedPositionDiffContext> diffContexts) throws BadLocationException, BadPositionCategoryException, JavaModelException {
	if (enabled.get() && !diffContexts.isEmpty()) {
		List<SemanticHighlightingInformation> deltaInfos = newArrayList();
		for (HighlightedPositionDiffContext context : diffContexts) {
			deltaInfos.addAll(diffCalculator.getDiffInfos(context));
		}
		if (!deltaInfos.isEmpty()) {
			notifyClient(textDocument, deltaInfos);
		}
	}
}
 

public void write(final JsonWriter out, final VersionedTextDocumentIdentifier value) throws IOException {
  if (value == null) {
  	out.nullValue();
  	return;
  }
  
  out.beginObject();
  out.name("version");
  writeVersion(out, value.getVersion());
  out.name("uri");
  writeUri(out, value.getUri());
  out.endObject();
}
 

@Test
void testDidChangeWithoutRange() {
	DidOpenTextDocumentParams openParams = new DidOpenTextDocumentParams();
	openParams.setTextDocument(new TextDocumentItem("file.txt", "plaintext", 1, "hello world"));
	tracker.didOpen(openParams);
	DidChangeTextDocumentParams changeParams = new DidChangeTextDocumentParams();
	changeParams.setTextDocument(new VersionedTextDocumentIdentifier("file.txt", 2));
	TextDocumentContentChangeEvent changeEvent = new TextDocumentContentChangeEvent();
	changeEvent.setText("hi there");
	changeParams.setContentChanges(Collections.singletonList(changeEvent));
	tracker.didChange(changeParams);
	Assertions.assertEquals("hi there", tracker.getContents(URI.create("file.txt")));
}
 

private void changeDocument(ICompilationUnit unit, String content, int version) throws JavaModelException {
	DidChangeTextDocumentParams changeParms = new DidChangeTextDocumentParams();
	VersionedTextDocumentIdentifier textDocument = new VersionedTextDocumentIdentifier();
	textDocument.setUri(JDTUtils.toURI(unit));
	textDocument.setVersion(version);
	changeParms.setTextDocument(textDocument);
	TextDocumentContentChangeEvent event = new TextDocumentContentChangeEvent();
	event.setText(content);
	List<TextDocumentContentChangeEvent> contentChanges = new ArrayList<>();
	contentChanges.add(event);
	changeParms.setContentChanges(contentChanges);
	lifeCycleHandler.didChange(changeParms);
}
 

protected String _toExpectation(final VersionedTextDocumentIdentifier v) {
  StringConcatenation _builder = new StringConcatenation();
  String _lastSegment = org.eclipse.emf.common.util.URI.createURI(v.getUri()).lastSegment();
  _builder.append(_lastSegment);
  _builder.append(" <");
  Integer _version = v.getVersion();
  _builder.append(_version);
  _builder.append(">");
  return _builder.toString();
}
 

protected Object addTextEdit(String theUri, Document document, TextEdit... textEdits) {
	if (useDocumentChanges) {
		TextDocumentEdit textDocumentEdit = new TextDocumentEdit();
		VersionedTextDocumentIdentifier versionedTextDocumentIdentifier = new VersionedTextDocumentIdentifier();
		versionedTextDocumentIdentifier.setUri(theUri);
		versionedTextDocumentIdentifier.setVersion(document.getVersion());
		textDocumentEdit.setTextDocument(versionedTextDocumentIdentifier);
		textDocumentEdit.setEdits(Arrays.asList(textEdits));
		return edit.getDocumentChanges().add(Either.forLeft(textDocumentEdit));
	} else {
		return edit.getChanges().put(theUri, Arrays.asList(textEdits));
	}
}
 

protected VersionedTextDocumentIdentifier toVersionedTextDocumentIdentifier(final ILanguageServerAccess.Context context) {
  VersionedTextDocumentIdentifier _versionedTextDocumentIdentifier = new VersionedTextDocumentIdentifier();
  final Procedure1<VersionedTextDocumentIdentifier> _function = (VersionedTextDocumentIdentifier it) -> {
    it.setUri(this._uriExtensions.toUriString(context.getResource().getURI()));
    it.setVersion(context.getDocument().getVersion());
  };
  return ObjectExtensions.<VersionedTextDocumentIdentifier>operator_doubleArrow(_versionedTextDocumentIdentifier, _function);
}
 

/** @return string for given element */
public String toString(VersionedTextDocumentIdentifier textDocument) {
	if (textDocument == null) {
		return "";
	}
	String str = Strings.join(", ",
			textDocument.getUri(),
			textDocument.getVersion());

	return "(" + str + ")";
}
 

/** Save the given, open file's in-memory content to disk. Does *not* close the file. */
protected void saveOpenedFile(FileURI fileURI) {
	if (!isOpen(fileURI)) {
		Assert.fail("file is not open: " + fileURI);
	}
	OpenFileInfo info = openFiles.get(fileURI);
	// 1) save current content to disk
	changeFileOnDiskWithoutNotification(fileURI, info.content);
	// 2) notify LSP server
	VersionedTextDocumentIdentifier docId = new VersionedTextDocumentIdentifier(fileURI.toString(), info.version);
	DidSaveTextDocumentParams params = new DidSaveTextDocumentParams(docId);
	languageServer.didSave(params);
}
 

@Test
public void diagnosticsChangeParseError() throws Exception {
  RdfLintLanguageServer lsp = new RdfLintLanguageServer();
  InitializeParams initParams = new InitializeParams();
  String rootPath = this.getClass().getClassLoader().getResource("testValidatorsImpl/").getPath();
  String parentPath = rootPath + "TrimValidator/turtle_needtrim";
  initParams.setRootUri(RdfLintLanguageServer.convertFilePath2Uri(parentPath));
  lsp.initialize(initParams);

  LanguageClient client = mock(LanguageClient.class);
  lsp.connect(client);

  DidChangeTextDocumentParams changeParams = new DidChangeTextDocumentParams();
  changeParams.setTextDocument(new VersionedTextDocumentIdentifier());
  changeParams.getTextDocument()
      .setUri(RdfLintLanguageServer.convertFilePath2Uri(parentPath + "/needtrim.rdf"));
  List<TextDocumentContentChangeEvent> changeEvents = new LinkedList<>();
  changeParams.setContentChanges(changeEvents);
  changeEvents.add(new TextDocumentContentChangeEvent());
  changeEvents.get(0).setText("<rdf:RDF\n"
      + "    xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n"
      + "    xmlns:schema=\"http://schema.org/\"\n"
      + "    >\n"
      + "\n"
      + "  <rdf:Description rdf:about=\"something\">\n"
      + "    <schema:familyName xml:lang=\"ja\">familyName</schema:familyN>\n"
      + "  </rdf:Description>\n"
      + "\n"
      + "</rdf:RDF>");
  lsp.didChange(changeParams);

  verify(client, times(1)).publishDiagnostics(any());
}
 

@Test
public void diagnosticsChange() throws Exception {
  RdfLintLanguageServer lsp = new RdfLintLanguageServer();
  InitializeParams initParams = new InitializeParams();
  String rootPath = this.getClass().getClassLoader().getResource("testValidatorsImpl/").getPath();
  String parentPath = rootPath + "TrimValidator/turtle_needtrim";
  initParams.setRootUri(RdfLintLanguageServer.convertFilePath2Uri(parentPath));
  lsp.initialize(initParams);

  LanguageClient client = mock(LanguageClient.class);
  lsp.connect(client);

  DidChangeTextDocumentParams changeParams = new DidChangeTextDocumentParams();
  changeParams.setTextDocument(new VersionedTextDocumentIdentifier());
  changeParams.getTextDocument()
      .setUri(RdfLintLanguageServer.convertFilePath2Uri(parentPath + "/needtrim.rdf"));
  List<TextDocumentContentChangeEvent> changeEvents = new LinkedList<>();
  changeParams.setContentChanges(changeEvents);
  changeEvents.add(new TextDocumentContentChangeEvent());
  changeEvents.get(0).setText("<rdf:RDF\n"
      + "    xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n"
      + "    xmlns:schema=\"http://schema.org/\"\n"
      + "    >\n"
      + "\n"
      + "  <rdf:Description rdf:about=\"something\">\n"
      + "    <schema:familyName xml:lang=\"ja\">familyName </schema:familyName>\n"
      + "  </rdf:Description>\n"
      + "\n"
      + "</rdf:RDF>");
  lsp.didChange(changeParams);

  verify(client, times(1)).publishDiagnostics(any());
}
 

@Test
void testValidationErrorUpdatedOnChange() throws Exception {
	testDiagnostic("camel-with-endpoint-error", 1, ".xml");
	
	camelLanguageServer.getTextDocumentService().getOpenedDocument(DUMMY_URI+".xml").getText();
	DidChangeTextDocumentParams params = new DidChangeTextDocumentParams();
	params.setTextDocument(new VersionedTextDocumentIdentifier(DUMMY_URI+".xml", 2));
	List<TextDocumentContentChangeEvent> contentChanges = new ArrayList<>();
	contentChanges.add(new TextDocumentContentChangeEvent("<from uri=\"timer:timerName?delay=1000\" xmlns=\"http://camel.apache.org/schema/blueprint\"></from>\n"));
	params.setContentChanges(contentChanges);
	camelLanguageServer.getTextDocumentService().didChange(params);
	
	await().timeout(AWAIT_TIMEOUT).untilAsserted(() -> assertThat(lastPublishedDiagnostics.getDiagnostics()).isEmpty());
}
 

@Test
void testDidChangeWithRange() {
	DidOpenTextDocumentParams openParams = new DidOpenTextDocumentParams();
	openParams.setTextDocument(new TextDocumentItem("file.txt", "plaintext", 1, "hello world"));
	tracker.didOpen(openParams);
	DidChangeTextDocumentParams changeParams = new DidChangeTextDocumentParams();
	changeParams.setTextDocument(new VersionedTextDocumentIdentifier("file.txt", 2));
	TextDocumentContentChangeEvent changeEvent = new TextDocumentContentChangeEvent();
	changeEvent.setText(", friend");
	changeEvent.setRange(new Range(new Position(0, 5), new Position(0, 11)));
	changeEvent.setRangeLength(6);
	changeParams.setContentChanges(Collections.singletonList(changeEvent));
	tracker.didChange(changeParams);
	Assertions.assertEquals("hello, friend", tracker.getContents(URI.create("file.txt")));
}
 

public static CodeAction ca(Diagnostic d, TextEdit... te) {
	CodeAction codeAction = new CodeAction();
	codeAction.setTitle("");
	codeAction.setDiagnostics(Arrays.asList(d));

	VersionedTextDocumentIdentifier versionedTextDocumentIdentifier = new VersionedTextDocumentIdentifier(FILE_URI,
			0);

	TextDocumentEdit textDocumentEdit = new TextDocumentEdit(versionedTextDocumentIdentifier, Arrays.asList(te));
	WorkspaceEdit workspaceEdit = new WorkspaceEdit(Collections.singletonList(Either.forLeft(textDocumentEdit)));
	codeAction.setEdit(workspaceEdit);
	return codeAction;
}
 

public EditorEventManager(Editor editor, DocumentListener documentListener, EditorMouseListener mouseListener,
                          EditorMouseMotionListener mouseMotionListener, LSPCaretListenerImpl caretListener,
                          RequestManager requestManager, ServerOptions serverOptions, LanguageServerWrapper wrapper) {

    this.editor = editor;
    this.documentListener = documentListener;
    this.mouseListener = mouseListener;
    this.mouseMotionListener = mouseMotionListener;
    this.requestManager = requestManager;
    this.wrapper = wrapper;
    this.caretListener = caretListener;

    this.identifier = new TextDocumentIdentifier(FileUtils.editorToURIString(editor));
    this.changesParams = new DidChangeTextDocumentParams(new VersionedTextDocumentIdentifier(),
            Collections.singletonList(new TextDocumentContentChangeEvent()));
    this.syncKind = serverOptions.syncKind;

    this.completionTriggers = (serverOptions.completionOptions != null
            && serverOptions.completionOptions.getTriggerCharacters() != null) ?
            serverOptions.completionOptions.getTriggerCharacters() :
            new ArrayList<>();

    this.signatureTriggers = (serverOptions.signatureHelpOptions != null
            && serverOptions.signatureHelpOptions.getTriggerCharacters() != null) ?
            serverOptions.signatureHelpOptions.getTriggerCharacters() :
            new ArrayList<>();

    this.project = editor.getProject();

    EditorEventManagerBase.uriToManager.put(FileUtils.editorToURIString(editor), this);
    EditorEventManagerBase.editorToManager.put(editor, this);
    changesParams.getTextDocument().setUri(identifier.getUri());

    this.currentHint = null;
}
 

/**
 * Convert IntelliJ {@link DocumentEvent} to LS according {@link TextDocumentSyncKind}.
 *
 * @param event
 *            IntelliJ {@link DocumentEvent}
 * @return true if change event is ready to be sent
 */
private boolean createChangeEvent(DocumentEvent event) {
    changeParams = new DidChangeTextDocumentParams(new VersionedTextDocumentIdentifier(), Collections.singletonList(new TextDocumentContentChangeEvent()));
    changeParams.getTextDocument().setUri(fileUri.toString());

    Document document = event.getDocument();
    TextDocumentContentChangeEvent changeEvent = null;
    TextDocumentSyncKind syncKind = getTextDocumentSyncKind();
    switch (syncKind) {
        case None:
            return false;
        case Full:
            changeParams.getContentChanges().get(0).setText(event.getDocument().getText());
            break;
        case Incremental:
            changeEvent = changeParams.getContentChanges().get(0);
            CharSequence newText = event.getNewFragment();
            int offset = event.getOffset();
            int length = event.getOldLength();
            try {
                // try to convert the Eclipse start/end offset to LS range.
                Range range = new Range(LSPIJUtils.toPosition(offset, document),
                        LSPIJUtils.toPosition(offset + length, document));
                changeEvent.setRange(range);
                changeEvent.setText(newText.toString());
                changeEvent.setRangeLength(length);
            } finally {
            }
            break;
    }
    return true;
}
 

@Test
void testDidChangeWithRangeMultiline() {
	DidOpenTextDocumentParams openParams = new DidOpenTextDocumentParams();
	openParams.setTextDocument(new TextDocumentItem("file.txt", "plaintext", 1, "hello\nworld"));
	tracker.didOpen(openParams);
	DidChangeTextDocumentParams changeParams = new DidChangeTextDocumentParams();
	changeParams.setTextDocument(new VersionedTextDocumentIdentifier("file.txt", 2));
	TextDocumentContentChangeEvent changeEvent = new TextDocumentContentChangeEvent();
	changeEvent.setText("affles");
	changeEvent.setRange(new Range(new Position(1, 1), new Position(1, 5)));
	changeEvent.setRangeLength(4);
	changeParams.setContentChanges(Collections.singletonList(changeEvent));
	tracker.didChange(changeParams);
	Assertions.assertEquals("hello\nwaffles", tracker.getContents(URI.create("file.txt")));
}
 

/**
 * The text document that has to be decorated with the semantic highlighting information.
 */
public void setTextDocument(@NonNull final VersionedTextDocumentIdentifier textDocument) {
  this.textDocument = Preconditions.checkNotNull(textDocument, "textDocument");
}
 

public SemanticHighlightingParams(@NonNull final VersionedTextDocumentIdentifier textDocument, @NonNull final List<SemanticHighlightingInformation> lines) {
  this.textDocument = Preconditions.<VersionedTextDocumentIdentifier>checkNotNull(textDocument, "textDocument");
  this.lines = Preconditions.<List<SemanticHighlightingInformation>>checkNotNull(lines, "lines");
}