mirror of
https://github.com/sigmasternchen/xtext-core
synced 2025-03-16 08:48:55 +00:00
Made LanguageServerImpl to implement all four service interfaces. Introduced WorkspaceManager
This commit is contained in:
Sven Efftinge
parent
50628b457f
commit
ba6a21b00c
7 changed files with 306 additions and 244 deletions
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@ -0,0 +1,53 @@
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/*******************************************************************************
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* Copyright (c) 2016 TypeFox GmbH (http://www.typefox.io) and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*******************************************************************************/
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package org.eclipse.xtext.ide.server
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import io.typefox.lsapi.Position
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import org.eclipse.xtend.lib.annotations.Data
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import java.util.List
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import io.typefox.lsapi.TextDocumentContentChangeEvent
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/**
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* @author Sven Efftinge - Initial contribution and API
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*/
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@Data class Document {
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int version
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String contents
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def int getOffSet(Position position) {
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val l = contents.length
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val char NL = '\n'
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var line = 0
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var column = 0
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for (var i = 0; i < l; i++) {
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val ch = contents.charAt(i)
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if (ch === NL) {
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line++
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column = 0
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} else {
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column++
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}
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if (position.line === line && position.character === column) {
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return i
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}
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}
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throw new IndexOutOfBoundsException(position.toString + " text was : "+contents)
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}
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def Document applyChanges(List<? extends TextDocumentContentChangeEvent> changes) {
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var newContent = contents
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for (change : changes) {
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val start = getOffSet(change.range.start)
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val end = getOffSet(change.range.end)
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newContent = newContent.substring(0, start) + change.text + newContent.substring(end)
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}
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return new Document(version + 1, newContent)
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}
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}
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@ -13,7 +13,7 @@ import com.google.inject.ImplementedBy
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import java.io.File
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/**
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* @author efftinge - Initial contribution and API
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* @author Sven Efftinge - Initial contribution and API
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*/
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@ImplementedBy(JavaIoFileSystemScanner)
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interface IFileSystemScanner {
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@ -8,28 +8,62 @@
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package org.eclipse.xtext.ide.server
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import com.google.inject.Inject
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import com.google.inject.Provider
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import io.typefox.lsapi.CodeActionParams
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import io.typefox.lsapi.CodeLens
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import io.typefox.lsapi.CodeLensParams
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import io.typefox.lsapi.CompletionItem
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import io.typefox.lsapi.CompletionOptionsImpl
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import io.typefox.lsapi.Diagnostic
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import io.typefox.lsapi.DiagnosticImpl
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import io.typefox.lsapi.DidChangeConfigurationParams
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import io.typefox.lsapi.DidChangeTextDocumentParams
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import io.typefox.lsapi.DidChangeWatchedFilesParams
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import io.typefox.lsapi.DidCloseTextDocumentParams
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import io.typefox.lsapi.DidOpenTextDocumentParams
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import io.typefox.lsapi.DidSaveTextDocumentParams
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import io.typefox.lsapi.DocumentFormattingParams
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import io.typefox.lsapi.DocumentOnTypeFormattingParams
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import io.typefox.lsapi.DocumentRangeFormattingParams
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import io.typefox.lsapi.DocumentSymbolParams
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import io.typefox.lsapi.InitializeParams
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import io.typefox.lsapi.InitializeResult
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import io.typefox.lsapi.InitializeResultImpl
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import io.typefox.lsapi.LanguageServer
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import io.typefox.lsapi.MessageParams
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import io.typefox.lsapi.NotificationCallback
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import io.typefox.lsapi.PositionImpl
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import io.typefox.lsapi.PublishDiagnosticsParams
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import io.typefox.lsapi.PublishDiagnosticsParamsImpl
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import io.typefox.lsapi.RangeImpl
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import io.typefox.lsapi.ReferenceParams
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import io.typefox.lsapi.RenameParams
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import io.typefox.lsapi.ServerCapabilitiesImpl
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import io.typefox.lsapi.ShowMessageRequestParams
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import io.typefox.lsapi.TextDocumentPositionParams
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import io.typefox.lsapi.TextDocumentService
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import io.typefox.lsapi.WindowService
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import io.typefox.lsapi.WorkspaceService
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import io.typefox.lsapi.WorkspaceSymbolParams
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import java.util.List
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import org.eclipse.emf.common.util.URI
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import org.eclipse.xtend.lib.annotations.Accessors
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import org.eclipse.xtext.validation.Issue
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/**
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*
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* @author Sven Efftinge - Initial contribution and API
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*/
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@Accessors class LanguageServerImpl implements LanguageServer {
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@Accessors class LanguageServerImpl implements LanguageServer, WorkspaceService, WindowService, TextDocumentService {
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InitializeParams params
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@Inject WorkspaceServiceImpl workspaceService
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@Inject TextDocumentServiceImpl textDocumentService
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@Inject WindowServiceImpl windowService
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@Inject Provider<WorkspaceManager> workspaceManagerProvider
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WorkspaceManager workspaceManager
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override InitializeResult initialize(InitializeParams params) {
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this.params = params
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workspaceService.initialize(params, [ textDocumentService.publishDiagnostics($0, $1) ])
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workspaceManager = workspaceManagerProvider.get
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workspaceManager.initialize(URI.createFileURI(params.rootPath), [ this.publishDiagnostics($0, $1) ])
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return new InitializeResultImpl => [
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capabilities = new ServerCapabilitiesImpl => [
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completionProvider = new CompletionOptionsImpl => [
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@ -39,23 +73,166 @@ import org.eclipse.xtend.lib.annotations.Accessors
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]
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]
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}
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override exit() {
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}
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override void shutdown() {
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}
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override getTextDocumentService() {
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textDocumentService
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this
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}
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override getWorkspaceService() {
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workspaceService
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this
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}
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override getWindowService() {
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this
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}
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override exit() {
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// file/content change events
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override didOpen(DidOpenTextDocumentParams params) {
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workspaceManager.didOpen(params)
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}
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override didChange(DidChangeTextDocumentParams params) {
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workspaceManager.didChange(params)
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}
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override didClose(DidCloseTextDocumentParams params) {
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workspaceManager.didClose(params)
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}
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override didSave(DidSaveTextDocumentParams params) {
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workspaceManager.didSave(params)
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}
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override didChangeWatchedFiles(DidChangeWatchedFilesParams params) {
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workspaceManager.didChangeWatchedFiles(params)
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}
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// end file/content change events
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// validation stuff
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private List<NotificationCallback<PublishDiagnosticsParams>> diagnosticListeners = newArrayList()
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override onPublishDiagnostics(NotificationCallback<PublishDiagnosticsParams> callback) {
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diagnosticListeners.add(callback)
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}
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private def void publishDiagnostics(URI uri, Iterable<? extends Issue> issues) {
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val diagnostics = new PublishDiagnosticsParamsImpl => [
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it.uri = workspaceManager.toPath(uri)
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it.diagnostics = issues.map[toDiagnostic].toList
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]
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for (diagnosticsCallback : diagnosticListeners) {
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diagnosticsCallback.call(diagnostics)
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}
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}
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private def DiagnosticImpl toDiagnostic(Issue issue) {
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new DiagnosticImpl => [
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code = issue.code
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severity = switch issue.severity {
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case ERROR : Diagnostic.SEVERITY_ERROR
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case WARNING : Diagnostic.SEVERITY_WARNING
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case INFO : Diagnostic.SEVERITY_INFO
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default : Diagnostic.SEVERITY_HINT
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}
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message = issue.message
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range = new RangeImpl => [
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start = new PositionImpl => [
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line = issue.lineNumber
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character = issue.column
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]
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end = new PositionImpl => [
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line = issue.lineNumber
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character = issue.column + issue.length
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]
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]
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]
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}
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// end validation stuff
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override symbol(WorkspaceSymbolParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override getWindowService() {
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override didChangeConfiguraton(DidChangeConfigurationParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onShowMessage(NotificationCallback<MessageParams> callback) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onShowMessageRequest(NotificationCallback<ShowMessageRequestParams> callback) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onLogMessage(NotificationCallback<MessageParams> callback) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override completion(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override resolveCompletionItem(CompletionItem unresolved) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override hover(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override signatureHelp(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override definition(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override references(ReferenceParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override documentHighlight(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override documentSymbol(DocumentSymbolParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override codeAction(CodeActionParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override codeLens(CodeLensParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override resolveCodeLens(CodeLens unresolved) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override formatting(DocumentFormattingParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override rangeFormatting(DocumentRangeFormattingParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onTypeFormatting(DocumentOnTypeFormattingParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override rename(RenameParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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@ -1,158 +0,0 @@
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/*******************************************************************************
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* Copyright (c) 2016 TypeFox GmbH (http://www.typefox.io) and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*******************************************************************************/
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package org.eclipse.xtext.ide.server
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import io.typefox.lsapi.Diagnostic
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import io.typefox.lsapi.DiagnosticImpl
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import io.typefox.lsapi.NotificationCallback
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import io.typefox.lsapi.PositionImpl
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import io.typefox.lsapi.PublishDiagnosticsParams
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import io.typefox.lsapi.RangeImpl
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import io.typefox.lsapi.TextDocumentPositionParams
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import io.typefox.lsapi.TextDocumentService
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import java.util.List
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import org.eclipse.xtext.validation.Issue
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import org.eclipse.emf.common.util.URI
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import io.typefox.lsapi.PublishDiagnosticsParamsImpl
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import io.typefox.lsapi.CompletionItem
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import io.typefox.lsapi.ReferenceParams
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import io.typefox.lsapi.DocumentSymbolParams
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import io.typefox.lsapi.CodeActionParams
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import io.typefox.lsapi.CodeLensParams
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import io.typefox.lsapi.CodeLens
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import io.typefox.lsapi.DocumentFormattingParams
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import io.typefox.lsapi.DocumentRangeFormattingParams
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import io.typefox.lsapi.DocumentOnTypeFormattingParams
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import io.typefox.lsapi.RenameParams
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import io.typefox.lsapi.DidOpenTextDocumentParams
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import io.typefox.lsapi.DidChangeTextDocumentParams
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import io.typefox.lsapi.DidCloseTextDocumentParams
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import io.typefox.lsapi.DidSaveTextDocumentParams
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/**
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* @author efftinge - Initial contribution and API
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*/
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class TextDocumentServiceImpl implements TextDocumentService {
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override completion(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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def void publishDiagnostics(URI uri, Iterable<? extends Issue> issues) {
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val diagnostics = new PublishDiagnosticsParamsImpl => [
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it.uri = uri.toFileString
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it.diagnostics = issues.map[toDiagnostic].toList
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]
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for (diagnosticsCallback : diagnosticListeners) {
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diagnosticsCallback.call(diagnostics)
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}
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}
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private def DiagnosticImpl toDiagnostic(Issue issue) {
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new DiagnosticImpl => [
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code = issue.code
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severity = switch issue.severity {
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case ERROR : Diagnostic.SEVERITY_ERROR
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case WARNING : Diagnostic.SEVERITY_WARNING
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case INFO : Diagnostic.SEVERITY_INFO
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default : Diagnostic.SEVERITY_HINT
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}
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message = issue.message
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range = new RangeImpl => [
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start = new PositionImpl => [
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line = issue.lineNumber
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character = issue.column
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]
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end = new PositionImpl => [
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line = issue.lineNumber
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character = issue.column + issue.length
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]
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]
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]
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}
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private List<NotificationCallback<PublishDiagnosticsParams>> diagnosticListeners = newArrayList()
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override onPublishDiagnostics(NotificationCallback<PublishDiagnosticsParams> callback) {
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diagnosticListeners.add(callback)
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}
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override resolveCompletionItem(CompletionItem unresolved) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override hover(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override signatureHelp(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override definition(TextDocumentPositionParams position) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override references(ReferenceParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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|
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override documentHighlight(TextDocumentPositionParams position) {
|
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override documentSymbol(DocumentSymbolParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override codeAction(CodeActionParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override codeLens(CodeLensParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override resolveCodeLens(CodeLens unresolved) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override formatting(DocumentFormattingParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override rangeFormatting(DocumentRangeFormattingParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onTypeFormatting(DocumentOnTypeFormattingParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override rename(RenameParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override didOpen(DidOpenTextDocumentParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override didChange(DidChangeTextDocumentParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override didClose(DidCloseTextDocumentParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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|
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override didSave(DidSaveTextDocumentParams params) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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|
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}
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|
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@ -1,32 +0,0 @@
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/*******************************************************************************
|
||||
* Copyright (c) 2016 TypeFox GmbH (http://www.typefox.io) and others.
|
||||
* All rights reserved. This program and the accompanying materials
|
||||
* are made available under the terms of the Eclipse Public License v1.0
|
||||
* which accompanies this distribution, and is available at
|
||||
* http://www.eclipse.org/legal/epl-v10.html
|
||||
*******************************************************************************/
|
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package org.eclipse.xtext.ide.server
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|
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import io.typefox.lsapi.WindowService
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import io.typefox.lsapi.NotificationCallback
|
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import io.typefox.lsapi.MessageParams
|
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import io.typefox.lsapi.ShowMessageRequestParams
|
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|
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/**
|
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* @author efftinge - Initial contribution and API
|
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*/
|
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class WindowServiceImpl implements WindowService {
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|
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override onShowMessage(NotificationCallback<MessageParams> callback) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onShowMessageRequest(NotificationCallback<ShowMessageRequestParams> callback) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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override onLogMessage(NotificationCallback<MessageParams> callback) {
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throw new UnsupportedOperationException("TODO: auto-generated method stub")
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}
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||||
}
|
||||
|
|
@ -9,13 +9,14 @@ package org.eclipse.xtext.ide.server
|
|||
|
||||
import com.google.inject.Inject
|
||||
import com.google.inject.Provider
|
||||
import io.typefox.lsapi.DidChangeConfigurationParams
|
||||
import io.typefox.lsapi.DidChangeTextDocumentParams
|
||||
import io.typefox.lsapi.DidChangeWatchedFilesParams
|
||||
import io.typefox.lsapi.DidCloseTextDocumentParams
|
||||
import io.typefox.lsapi.DidOpenTextDocumentParams
|
||||
import io.typefox.lsapi.DidSaveTextDocumentParams
|
||||
import io.typefox.lsapi.FileEvent
|
||||
import io.typefox.lsapi.InitializeParams
|
||||
import io.typefox.lsapi.WorkspaceService
|
||||
import io.typefox.lsapi.WorkspaceSymbolParams
|
||||
import java.util.List
|
||||
import java.util.Map
|
||||
import org.eclipse.emf.common.util.URI
|
||||
import org.eclipse.xtext.build.BuildRequest
|
||||
import org.eclipse.xtext.build.IncrementalBuilder
|
||||
|
|
@ -28,73 +29,92 @@ import org.eclipse.xtext.resource.impl.ResourceDescriptionsData
|
|||
import org.eclipse.xtext.validation.Issue
|
||||
|
||||
/**
|
||||
* @author efftinge - Initial contribution and API
|
||||
* @author Sven Efftinge - Initial contribution and API
|
||||
*/
|
||||
class WorkspaceServiceImpl implements WorkspaceService {
|
||||
|
||||
@Inject
|
||||
protected IncrementalBuilder incrementalBuilder
|
||||
class WorkspaceManager {
|
||||
|
||||
@Inject
|
||||
protected Provider<XtextResourceSet> resourceSetProvider
|
||||
|
||||
@Inject
|
||||
protected IResourceServiceProvider.Registry languagesRegistry
|
||||
|
||||
protected IndexState indexState = new IndexState
|
||||
|
||||
@Inject IFileSystemScanner fileSystemScanner
|
||||
|
||||
@Inject protected IncrementalBuilder incrementalBuilder
|
||||
@Inject protected Provider<XtextResourceSet> resourceSetProvider
|
||||
@Inject protected IResourceServiceProvider.Registry languagesRegistry
|
||||
@Inject protected IFileSystemScanner fileSystemScanner
|
||||
|
||||
IndexState indexState = new IndexState
|
||||
URI baseDir
|
||||
|
||||
(URI, Iterable<Issue>)=>void issueAcceptor
|
||||
|
||||
public def void initialize(InitializeParams params, (URI, Iterable<Issue>)=>void acceptor) {
|
||||
Map<URI, Document> openDocuments = newHashMap()
|
||||
|
||||
def void initialize(URI baseDir, (URI, Iterable<Issue>)=>void acceptor) {
|
||||
val uris = newArrayList
|
||||
this.baseDir = URI.createFileURI(params.rootPath)
|
||||
this.baseDir = baseDir
|
||||
this.issueAcceptor = acceptor
|
||||
fileSystemScanner.scan(URI.createFileURI(params.rootPath)) [uris += it]
|
||||
val result = incrementalBuilder.build(newBuildRequest(uris, emptyList),[languagesRegistry.getResourceServiceProvider(it)])
|
||||
indexState = result.indexState
|
||||
this.fileSystemScanner.scan(baseDir)[uris += it]
|
||||
doBuild(uris, emptyList)
|
||||
}
|
||||
|
||||
override didChangeConfiguraton(DidChangeConfigurationParams param) {
|
||||
throw new UnsupportedOperationException("TODO: auto-generated method stub")
|
||||
}
|
||||
|
||||
override didChangeWatchedFiles(DidChangeWatchedFilesParams fileChanges) {
|
||||
|
||||
def didChangeWatchedFiles(DidChangeWatchedFilesParams fileChanges) {
|
||||
val dirtyFiles = newArrayList
|
||||
val deletedFiles = newArrayList
|
||||
for (fileEvent : fileChanges.changes) {
|
||||
if (fileEvent.type === FileEvent.TYPE_DELETED) {
|
||||
deletedFiles += URI.createFileURI(fileEvent.uri)
|
||||
deletedFiles += toUri(fileEvent.uri)
|
||||
} else {
|
||||
dirtyFiles += URI.createFileURI(fileEvent.uri)
|
||||
dirtyFiles += toUri(fileEvent.uri)
|
||||
}
|
||||
}
|
||||
val result = incrementalBuilder.build(newBuildRequest(dirtyFiles, deletedFiles),[languagesRegistry.getResourceServiceProvider(it)])
|
||||
doBuild(dirtyFiles, deletedFiles)
|
||||
}
|
||||
|
||||
def void doBuild(List<URI> dirtyFiles, List<URI> deletedFiles) {
|
||||
val result = incrementalBuilder.build(newBuildRequest(dirtyFiles, deletedFiles), [
|
||||
languagesRegistry.getResourceServiceProvider(it)
|
||||
])
|
||||
indexState = result.indexState
|
||||
}
|
||||
|
||||
override symbol(WorkspaceSymbolParams param) {
|
||||
throw new UnsupportedOperationException("TODO: auto-generated method stub")
|
||||
def didChange(DidChangeTextDocumentParams changeEvent) {
|
||||
val uri = toUri(changeEvent.textDocument.uri)
|
||||
val contents = openDocuments.get(uri)
|
||||
openDocuments.put(uri, contents.applyChanges(changeEvent.contentChanges))
|
||||
doBuild(#[uri], newArrayList)
|
||||
}
|
||||
|
||||
def didOpen(DidOpenTextDocumentParams changeEvent) {
|
||||
val uri = toUri(changeEvent.textDocument.uri)
|
||||
openDocuments.put(uri, new Document(changeEvent.textDocument.version, changeEvent.textDocument.text))
|
||||
}
|
||||
|
||||
def URI toUri(String path) {
|
||||
URI.createURI(baseDir.toString + path)
|
||||
}
|
||||
|
||||
def toPath(org.eclipse.emf.common.util.URI uri) {
|
||||
uri.toString.substring(baseDir.toString.length)
|
||||
}
|
||||
|
||||
def didClose(DidCloseTextDocumentParams changeEvent) {
|
||||
val uri = toUri(changeEvent.textDocument.uri)
|
||||
openDocuments.remove(uri)
|
||||
}
|
||||
|
||||
def didSave(DidSaveTextDocumentParams changeEvent) {
|
||||
// do nothing for now
|
||||
}
|
||||
|
||||
protected def BuildRequest newBuildRequest(List<URI> changedFiles, List<URI> deletedFiles) {
|
||||
new BuildRequest => [
|
||||
it.baseDir = baseDir
|
||||
it.resourceSet = createFreshResourceSet(new ResourceDescriptionsData(emptyList))
|
||||
it.state = new IndexState(indexState.resourceDescriptions.copy, indexState.fileMappings.copy)
|
||||
it.resourceSet = createFreshResourceSet(state.resourceDescriptions)
|
||||
it. dirtyFiles = changedFiles
|
||||
it.dirtyFiles = changedFiles
|
||||
it.deletedFiles = deletedFiles
|
||||
afterValidate = [ uri, issues|
|
||||
afterValidate = [ uri, issues |
|
||||
issueAcceptor.apply(uri, issues)
|
||||
return true
|
||||
]
|
||||
]
|
||||
}
|
||||
|
||||
|
||||
protected def XtextResourceSet createFreshResourceSet(ResourceDescriptionsData newIndex) {
|
||||
resourceSetProvider.get => [
|
||||
val projectDescription = new ProjectDescription => [
|
||||
|
|
@ -106,4 +126,6 @@ class WorkspaceServiceImpl implements WorkspaceService {
|
|||
]
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
|
@ -55,7 +55,7 @@ class AbstractLanguageServerTest implements NotificationCallback<PublishDiagnost
|
|||
write(contents.toString)
|
||||
close
|
||||
]
|
||||
return file.absolutePath
|
||||
return file.absolutePath.substring(root.absolutePath.length)
|
||||
}
|
||||
|
||||
override call(PublishDiagnosticsParams t) {
|
||||
|
|
|
|||
Loading…
Reference in a new issue