refactor(tsc): rework based on first-party TS API

extensions/vscode/package.json

@@ -688,7 +688,7 @@
 	"devDependencies": {
 		"@types/semver": "^7.5.3",
 		"@types/vscode": "^1.82.0",
-		"@volar/vscode": "2.0.0-alpha.3",
+		"@volar/vscode": "2.0.0-alpha.4",
 		"@vue/language-core": "1.8.25",
 		"@vue/language-server": "1.8.25",
 		"esbuild": "latest",

extensions/vscode/src/common.ts

@@ -70,14 +70,6 @@ async function doActivate(context: vscode.ExtensionContext, createLc: CreateLang
 	// doctor.register(context, client);
 	// componentMeta.register(context, client);
 
-	const supportedLanguages: Record<string, boolean> = {
-		vue: true,
-		markdown: true,
-		javascript: true,
-		typescript: true,
-		javascriptreact: true,
-		typescriptreact: true,
-	};
 	const selectors: vscode.DocumentFilter[] = [{ language: 'vue' }];
 
 	if (config.server.petiteVue.supportHtmlFile) {
@@ -87,7 +79,7 @@ async function doActivate(context: vscode.ExtensionContext, createLc: CreateLang
 		selectors.push({ language: 'markdown' });
 	}
 
-	activateAutoInsertion([client], document => supportedLanguages[document.languageId]); // TODO: implement auto insert .value
+	activateAutoInsertion(selectors, client); // TODO: implement auto insert .value
 	activateDocumentDropEdit(selectors, client);
 	activateWriteVirtualFiles('volar.action.writeVirtualFiles', client);
 

extensions/vscode/src/nodeClientMain.ts

@@ -9,8 +9,7 @@ import * as fs from 'fs';
 
 export async function activate(context: vscode.ExtensionContext) {
 
-	const languageClients: lsp.LanguageClient[] = [];
-
+	let languageClient: lsp.LanguageClient;
 	let serverPathStatusItem: vscode.StatusBarItem | undefined;
 
 	await commonActivate(context, (
@@ -110,7 +109,7 @@ export async function activate(context: vscode.ExtensionContext) {
 		);
 		client.start();
 
-		languageClients.push(client);
+		languageClient = client;
 
 		updateProviders(client);
 
@@ -149,7 +148,7 @@ export async function activate(context: vscode.ExtensionContext) {
 		volarLabs: {
 			version: supportLabsVersion,
 			codegenStackSupport: true,
-			languageClients,
+			languageClient: languageClient!,
 			languageServerProtocol: serverLib,
 		},
 	} satisfies ExportsInfoForLabs;

package.json

@@ -19,7 +19,7 @@
 	"devDependencies": {
 		"@lerna-lite/cli": "latest",
 		"@lerna-lite/publish": "latest",
-		"@volar/language-service": "2.0.0-alpha.3",
+		"@volar/language-service": "2.0.0-alpha.4",
 		"typescript": "latest",
 		"vite": "latest",
 		"vitest": "latest"

packages/component-meta/package.json

@@ -13,7 +13,7 @@
 		"directory": "packages/component-meta"
 	},
 	"dependencies": {
-		"@volar/typescript": "2.0.0-alpha.3",
+		"@volar/typescript": "2.0.0-alpha.4",
 		"@vue/language-core": "1.8.25",
 		"path-browserify": "^1.0.1",
 		"vue-component-type-helpers": "1.8.25"

packages/component-meta/src/base.ts

@@ -3,7 +3,7 @@ import type * as ts from 'typescript/lib/tsserverlibrary';
 import * as path from 'path-browserify';
 import { code as typeHelpersCode } from 'vue-component-type-helpers';
 import { code as vue2TypeHelpersCode } from 'vue-component-type-helpers/vue2';
-import { createLanguage, decorateLanguageService } from '@volar/typescript';
+import { createLanguage } from '@volar/typescript';
 
 import type {
 	MetaCheckerOptions,
@@ -164,8 +164,6 @@ export function baseCreate(
 	const { languageServiceHost } = language.typescript!;
 	const tsLs = ts.createLanguageService(languageServiceHost);
 
-	decorateLanguageService(language.files, tsLs, false);
-
 	if (checkerOptions.forceUseTs) {
 		const getScriptKind = languageServiceHost.getScriptKind?.bind(languageServiceHost);
 		languageServiceHost.getScriptKind = (fileName) => {

packages/language-core/package.json

@@ -13,7 +13,7 @@
 		"directory": "packages/language-core"
 	},
 	"dependencies": {
-		"@volar/language-core": "2.0.0-alpha.3",
+		"@volar/language-core": "2.0.0-alpha.4",
 		"@vue/compiler-dom": "^3.3.0",
 		"@vue/shared": "^3.3.0",
 		"computeds": "^0.0.1",

packages/language-core/src/generators/script.ts

@@ -45,7 +45,7 @@ export function* generate(
 			generic: undefined,
 			genericOffset: 0,
 			attrs: {},
-			ast: ts.createSourceFile('', '', ts.ScriptTarget.Latest, false, ts.ScriptKind.TS),
+			ast: ts.createSourceFile('', '', 99 satisfies ts.ScriptTarget.Latest, false, ts.ScriptKind.TS),
 		};
 		scriptSetupRanges = {
 			bindings: [],
@@ -1013,7 +1013,7 @@ type __VLS_NormalizeEmits<T> = __VLS_Prettify<
 				for (const [segment, offset, onlyError] of eachInterpolationSegment(
 					ts,
 					cssBind.text,
-					ts.createSourceFile('/a.txt', cssBind.text, ts.ScriptTarget.ESNext),
+					ts.createSourceFile('/a.txt', cssBind.text, 99 satisfies ts.ScriptTarget.ESNext),
 					emptyLocalVars,
 					cssIds,
 					vueCompilerOptions,

packages/language-core/src/generators/template.ts

@@ -575,7 +575,7 @@ export function* generate(
 		if (leftExpressionRange && leftExpressionText) {
 
 			const collectAst = createTsAst(node.parseResult, `const [${leftExpressionText}]`);
-			collectVars(ts, collectAst, forBlockVars);
+			collectVars(ts, collectAst, collectAst, forBlockVars);
 
 			for (const varName of forBlockVars)
 				localVars.set(varName, (localVars.get(varName) ?? 0) + 1);
@@ -871,7 +871,7 @@ export function* generate(
 				);
 
 				const slotAst = createTsAst(slotDir, `(${slotDir.exp.content}) => {}`);
-				collectVars(ts, slotAst, slotBlockVars);
+				collectVars(ts, slotAst, slotAst, slotBlockVars);
 				hasProps = true;
 				if (slotDir.exp.content.indexOf(':') === -1) {
 					yield _ts('const [');
@@ -1093,10 +1093,10 @@ export function* generate(
 			const ast = createTsAst(prop.exp, prop.exp.content);
 			let isCompoundExpression = true;
 
-			if (ast.getChildCount() === 2) { // with EOF 
-				ast.forEachChild(child_1 => {
+			if (ast.statements.length === 1) {
+				ts.forEachChild(ast, child_1 => {
 					if (ts.isExpressionStatement(child_1)) {
-						child_1.forEachChild(child_2 => {
+						ts.forEachChild(child_1, child_2 => {
 							if (ts.isArrowFunction(child_2)) {
 								isCompoundExpression = false;
 							}
@@ -1902,7 +1902,7 @@ export function* generate(
 	function createTsAst(astHolder: any, text: string) {
 		if (astHolder.__volar_ast_text !== text) {
 			astHolder.__volar_ast_text = text;
-			astHolder.__volar_ast = ts.createSourceFile('/a.ts', text, ts.ScriptTarget.ESNext);
+			astHolder.__volar_ast = ts.createSourceFile('/a.ts', text, 99 satisfies ts.ScriptTarget.ESNext);
 		}
 		return astHolder.__volar_ast as ts.SourceFile;
 	}

packages/language-core/src/parsers/scriptRanges.ts

@@ -1,6 +1,6 @@
 import type { TextRange } from '../types';
 import type * as ts from 'typescript/lib/tsserverlibrary';
-import { getStartEnd, parseBindingRanges } from './scriptSetupRanges';
+import { getNodeText, getStartEnd, parseBindingRanges } from './scriptSetupRanges';
 
 export interface ScriptRanges extends ReturnType<typeof parseScriptRanges> { }
 
@@ -17,12 +17,12 @@ export function parseScriptRanges(ts: typeof import('typescript/lib/tsserverlibr
 
 	const bindings = hasScriptSetup ? parseBindingRanges(ts, ast) : [];
 
-	ast.forEachChild(raw => {
+	ts.forEachChild(ast, raw => {
 
 		if (ts.isExportAssignment(raw)) {
 
 			let node: ts.AsExpression | ts.ExportAssignment | ts.ParenthesizedExpression = raw;
-			while (ts.isAsExpression(node.expression) || ts.isParenthesizedExpression(node.expression)) { // fix https://github.com/vuejs/language-tools/issues/1882
+			while (isAsExpression(node.expression) || ts.isParenthesizedExpression(node.expression)) { // fix https://github.com/vuejs/language-tools/issues/1882
 				node = node.expression;
 			}
 
@@ -39,12 +39,13 @@ export function parseScriptRanges(ts: typeof import('typescript/lib/tsserverlibr
 			if (obj) {
 				let componentsOptionNode: ts.ObjectLiteralExpression | undefined;
 				let nameOptionNode: ts.Expression | undefined;
-				obj.forEachChild(node => {
+				ts.forEachChild(obj, node => {
 					if (ts.isPropertyAssignment(node) && ts.isIdentifier(node.name)) {
-						if (node.name.escapedText === 'components' && ts.isObjectLiteralExpression(node.initializer)) {
+						const name = getNodeText(ts, node.name, ast);
+						if (name === 'components' && ts.isObjectLiteralExpression(node.initializer)) {
 							componentsOptionNode = node.initializer;
 						}
-						if (node.name.escapedText === 'name') {
+						if (name === 'name') {
 							nameOptionNode = node.initializer;
 						}
 					}
@@ -68,6 +69,11 @@ export function parseScriptRanges(ts: typeof import('typescript/lib/tsserverlibr
 	};
 
 	function _getStartEnd(node: ts.Node) {
-		return getStartEnd(node, ast);
+		return getStartEnd(ts, node, ast);
+	}
+
+	// isAsExpression is missing in tsc
+	function isAsExpression(node: ts.Node): node is ts.AsExpression {
+		return node.kind === ts.SyntaxKind.AsExpression;
 	}
 }