add file filter based on the tsconfig

src/filter.js

@@ -0,0 +1,68 @@
+import {resolve} from "path";
+
+
+
+export function fileFilter(tsconfig) {
+	const files = fileMatcher(tsconfig.files || []);
+	const glob = globMatcher(tsconfig.exclude || [], tsconfig.include || []);
+
+	return (filename) => {
+		filename = resolve(filename);
+		return files(filename) || glob(filename);
+	};
+}
+
+
+function fileMatcher(files) {
+	files = files.map(resolve);
+	return (filename) => files.includes(filename);
+}
+
+function globMatcher(excludePatterns, includePatterns) {
+	const exclude = excludePatterns.map(buildRegexp);
+	const include = includePatterns.map(buildRegexp);
+
+	return (filename) => {
+		for(let i = 0; i < exclude.length; ++i) {
+			if(exclude[i].test(filename)) {
+				return false;
+			}
+		}
+
+		for(let i = 0; i < include.length; ++i) {
+			if(include[i].test(filename)) {
+				return true;
+			}
+		}
+
+		return false;
+	};
+}
+
+function buildRegexp(pattern) {
+	const parts = pattern.replace("\\", "/").split("/").map(part => {
+		if(part === "**") {
+			return "([^/]*(/|$))*";
+		}
+
+		let rx = "";
+		for(let i = 0; i < part.length; ++i) {
+			switch(part[i]) {
+			case "*":
+				rx += "[^/]*";
+				break;
+
+			case "?":
+				rx += "[^/]";
+				break;
+
+			default:
+				rx += part[i];
+				break;
+			}
+		}
+		return rx;
+	});
+
+	return new RegExp(resolve(parts.join("/")));
+}

src/service.js

@@ -13,6 +13,7 @@ import {
 	DiagnosticCategory,
 } from "typescript";
 import {createServiceHost} from "./servicehost";
+import {fileFilter} from "./filter";
 
 
 
@@ -41,6 +42,8 @@ export function createService(tsconfig) {
 	const reg = createDocumentRegistry();
 	const svc = createLanguageService(host, reg);
 
+	const filter = fileFilter(tsconfig);
+
 	return {
 		emit(filename, code) {
 			host.addFile(filename, code);
@@ -71,7 +74,7 @@ export function createService(tsconfig) {
 		},
 
 		filter(filename) {
-			return host.containsFile(filename);
+			return filter(filename) || host.containsFile(filename);
 		},
 
 		resolveModuleName(importee, importer) {