perf(tsc): store the global types basename

Store the global types basename to only apply the removal of
global emits when needed. Otherwise this will cause unnessary searches
of file contents which is slow with large amount of emits.

packages/tsc/index.ts

@@ -1,5 +1,7 @@
 import { runTsc } from '@volar/typescript/lib/quickstart/runTsc';
 import * as vue from '@vue/language-core';
+import * as path from 'path'
+import type * as ts from 'typescript';
 
 const windowsPathReg = /\\/g;
 
@@ -11,15 +13,18 @@ export function run() {
 	const main = () => runTsc(
 		require.resolve('typescript/lib/tsc'),
 		runExtensions,
-		(ts, options) => {
+		(ts, options: ts.CreateProgramOptions) => {
 			const { configFilePath } = options.options;
 			const vueOptions = typeof configFilePath === 'string'
 				? vue.createParsedCommandLine(ts, ts.sys, configFilePath.replace(windowsPathReg, '/')).vueOptions
 				: vue.resolveVueCompilerOptions({});
+			let globalTypesBaseName: undefined | string;
 			const writeFile = options.host!.writeFile.bind(options.host);
-			options.host!.writeFile = (fileName, data, ...args) => {
-				data = removeEmitGlobalTypes(data);
-				writeFile(fileName, data, ...args);
+			options.host!.writeFile = (fileName, contents, ...args) => {
+				if (globalTypesBaseName && fileName.toLowerCase().endsWith(`${globalTypesBaseName}.d.ts`)) {
+					return writeFile(fileName, removeEmitGlobalTypes(contents), ...args);
+				}
+				return writeFile(fileName, contents, ...args);
 			};
 			if (
 				runExtensions.length === vueOptions.extensions.length
@@ -30,13 +35,22 @@ export function run() {
 					id => id,
 					fileName => {
 						const rootFileNames = options.rootNames.map(rootName => rootName.replace(windowsPathReg, '/'));
+						if (globalTypesBaseName) {
+							return globalTypesBaseName === path.basename(fileName).toLowerCase();
+						}
+
 						if (options.host?.useCaseSensitiveFileNames?.()) {
-							return rootFileNames.includes(fileName);
+							if (rootFileNames.includes(fileName)) {
+								globalTypesBaseName = path.basename(fileName).toLowerCase();
+								return true
+							};
+							return false;
 						}
 						else {
 							const lowerFileName = fileName.toLowerCase();
-							for (const rootFileName of rootFileNames) {
-								if (rootFileName.toLowerCase() === lowerFileName) {
+							for (const rootFile of rootFileNames) {
+								if (rootFile.toLowerCase() === lowerFileName) {
+									globalTypesBaseName = path.basename(lowerFileName);
 									return true;
 								}
 							}