feat: add respectClientCapabilities option for multiple servers supports

#1916 (comment)

Author: johnsoncodehk

extensions/vscode-vue-language-features/src/common.ts

@@ -264,6 +264,7 @@ function getInitializationOptions(
 ) {
 	const textDocumentSync = vscode.workspace.getConfiguration('volar').get<'incremental' | 'full' | 'none'>('vueserver.textDocumentSync');
 	const initializationOptions: VueServerInitializationOptions = {
+		respectClientCapabilities: true,
 		serverMode,
 		diagnosticModel: diagnosticModel() === 'pull' ? DiagnosticModel.Pull : DiagnosticModel.Push,
 		textDocumentSync: textDocumentSync ? {

packages/language-server/src/registerFeatures.ts

@@ -47,29 +47,30 @@ export const semanticTokensLegend: vscode.SemanticTokensLegend = {
 export function setupSyntacticCapabilities(
 	params: ClientCapabilities,
 	server: vscode.ServerCapabilities,
+	initOptions: LanguageServerInitializationOptions,
 ) {
-	if (params.textDocument?.selectionRange) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.selectionRange) {
 		server.selectionRangeProvider = true;
 	}
-	if (params.textDocument?.foldingRange) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.foldingRange) {
 		server.foldingRangeProvider = true;
 	}
-	if (params.textDocument?.linkedEditingRange) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.linkedEditingRange) {
 		server.linkedEditingRangeProvider = true;
 	}
-	if (params.textDocument?.colorProvider) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.colorProvider) {
 		server.colorProvider = true;
 	}
-	if (params.textDocument?.documentSymbol) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.documentSymbol) {
 		server.documentSymbolProvider = true;
 	}
-	if (params.textDocument?.formatting) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.formatting) {
 		server.documentFormattingProvider = true;
 	}
-	if (params.textDocument?.rangeFormatting) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.rangeFormatting) {
 		server.documentRangeFormattingProvider = true;
 	}
-	if (params.textDocument?.onTypeFormatting) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.onTypeFormatting) {
 		// https://github.com/microsoft/vscode/blob/ce119308e8fd4cd3f992d42b297588e7abe33a0c/extensions/typescript-language-features/src/languageFeatures/formatting.ts#L99
 		server.documentOnTypeFormattingProvider = {
 			firstTriggerCharacter: ';',
@@ -81,33 +82,33 @@ export function setupSyntacticCapabilities(
 export function setupSemanticCapabilities(
 	params: ClientCapabilities,
 	server: vscode.ServerCapabilities,
-	options: LanguageServerInitializationOptions,
+	initOptions: LanguageServerInitializationOptions,
 	plugins: ReturnType<LanguageServerPlugin>[],
 ) {
-	if (params.textDocument?.references) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.references) {
 		server.referencesProvider = true;
 	}
-	if (params.textDocument?.implementation) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.implementation) {
 		server.implementationProvider = true;
 	}
-	if (params.textDocument?.definition) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.definition) {
 		server.definitionProvider = true;
 	}
-	if (params.textDocument?.typeDefinition) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.typeDefinition) {
 		server.typeDefinitionProvider = true;
 	}
-	if (params.textDocument?.callHierarchy) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.callHierarchy) {
 		server.callHierarchyProvider = true;
 	}
-	if (params.textDocument?.hover) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.hover) {
 		server.hoverProvider = true;
 	}
-	if (params.textDocument?.rename) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.rename) {
 		server.renameProvider = {
 			prepareProvider: true,
 		};
 	}
-	if (params.workspace?.fileOperations) {
+	if (!initOptions.respectClientCapabilities || params.workspace?.fileOperations) {
 		server.workspace = {
 			fileOperations: {
 				willRename: {
@@ -127,13 +128,13 @@ export function setupSemanticCapabilities(
 			}
 		};
 	}
-	if (params.textDocument?.signatureHelp) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.signatureHelp) {
 		server.signatureHelpProvider = {
 			triggerCharacters: ['(', ',', '<'],
 			retriggerCharacters: [')'],
 		};
 	}
-	if (params.textDocument?.completion) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.completion) {
 		server.completionProvider = {
 			// triggerCharacters: '!@#$%^&*()_+-=`~{}|[]\:";\'<>?,./ '.split(''), // all symbols on keyboard
 			// hardcode to fix https://github.com/sublimelsp/LSP-volar/issues/114
@@ -149,23 +150,23 @@ export function setupSemanticCapabilities(
 			])],
 			resolveProvider: true,
 		};
-		if (options.ignoreTriggerCharacters) {
+		if (initOptions.ignoreTriggerCharacters) {
 			server.completionProvider.triggerCharacters = server.completionProvider.triggerCharacters
-				?.filter(c => !options.ignoreTriggerCharacters!.includes(c));
+				?.filter(c => !initOptions.ignoreTriggerCharacters!.includes(c));
 		}
 	}
-	if (params.textDocument?.documentHighlight) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.documentHighlight) {
 		server.documentHighlightProvider = true;
 	}
-	if (params.textDocument?.documentLink) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.documentLink) {
 		server.documentLinkProvider = {
 			resolveProvider: false, // TODO
 		};
 	}
-	if (params.workspace?.symbol) {
+	if (!initOptions.respectClientCapabilities || params.workspace?.symbol) {
 		server.workspaceSymbolProvider = true;
 	}
-	if (params.textDocument?.codeLens) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.codeLens) {
 		server.codeLensProvider = {
 			resolveProvider: true,
 		};
@@ -176,14 +177,14 @@ export function setupSemanticCapabilities(
 			]
 		};
 	}
-	if (params.textDocument?.semanticTokens) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.semanticTokens) {
 		server.semanticTokensProvider = {
 			range: true,
 			full: false,
 			legend: semanticTokensLegend,
 		};
 	}
-	if (params.textDocument?.codeAction) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.codeAction) {
 		server.codeActionProvider = {
 			codeActionKinds: [
 				vscode.CodeActionKind.Empty,
@@ -199,10 +200,10 @@ export function setupSemanticCapabilities(
 			resolveProvider: true,
 		};
 	}
-	if (params.textDocument?.inlayHint) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.inlayHint) {
 		server.inlayHintProvider = true;
 	}
-	if (params.textDocument?.diagnostic && (options.diagnosticModel ?? DiagnosticModel.Push) === DiagnosticModel.Pull) {
+	if (!initOptions.respectClientCapabilities || params.textDocument?.diagnostic && (initOptions.diagnosticModel ?? DiagnosticModel.Push) === DiagnosticModel.Pull) {
 		server.diagnosticProvider = {
 			documentSelector: [
 				...plugins.map(plugin => plugin.extraFileExtensions.map(ext => ({ pattern: `**/*.${ext.extension}` }))).flat(),

packages/language-server/src/server.ts

@@ -51,7 +51,7 @@ export function createCommonLanguageServer(
 
 		const serverMode = options.serverMode ?? ServerMode.Semantic;
 
-		setupSyntacticCapabilities(params.capabilities, result.capabilities);
+		setupSyntacticCapabilities(params.capabilities, result.capabilities, options);
 		await _createDocumentServiceHost();
 
 		if (serverMode === ServerMode.Semantic) {

packages/language-server/src/types.ts

@@ -112,4 +112,8 @@ export interface LanguageServerInitializationOptions {
 	 */
 	cancellationPipeName?: string;
 	noProjectReferences?: boolean;
+	/**
+	 * Enable this option to make language server setup server capabilities based on client capabilities to support multiple servers.
+	 */
+	respectClientCapabilities?: boolean;
 }