mirror of
https://github.com/denoland/deno.git
synced 2024-11-04 08:54:20 -05:00
1319 lines
39 KiB
JavaScript
1319 lines
39 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// @ts-check
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/// <reference path="./compiler.d.ts" />
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// deno-lint-ignore-file no-undef
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// This module is the entry point for "compiler" isolate, ie. the one
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// that is created when Deno needs to type check TypeScript, and in some
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// instances convert TypeScript to JavaScript.
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// Removes the `__proto__` for security reasons.
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// https://tc39.es/ecma262/#sec-get-object.prototype.__proto__
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delete Object.prototype.__proto__;
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((window) => {
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/** @type {DenoCore} */
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const core = window.Deno.core;
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const ops = core.ops;
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let logDebug = false;
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let logSource = "JS";
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/** @type {string=} */
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let cwd;
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// The map from the normalized specifier to the original.
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// TypeScript normalizes the specifier in its internal processing,
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// but the original specifier is needed when looking up the source from the runtime.
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// This map stores that relationship, and the original can be restored by the
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// normalized specifier.
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// See: https://github.com/denoland/deno/issues/9277#issuecomment-769653834
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/** @type {Map<string, string>} */
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const normalizedToOriginalMap = new Map();
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/**
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* @param {unknown} value
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* @returns {value is ts.CreateSourceFileOptions}
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*/
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function isCreateSourceFileOptions(value) {
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return value != null && typeof value === "object" &&
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"languageVersion" in value;
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}
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/**
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* @param {ts.ScriptTarget | ts.CreateSourceFileOptions | undefined} versionOrOptions
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* @returns {ts.CreateSourceFileOptions}
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*/
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function getCreateSourceFileOptions(versionOrOptions) {
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return isCreateSourceFileOptions(versionOrOptions)
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? versionOrOptions
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: { languageVersion: versionOrOptions ?? ts.ScriptTarget.ESNext };
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}
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function setLogDebug(debug, source) {
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logDebug = debug;
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if (source) {
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logSource = source;
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}
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}
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function printStderr(msg) {
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core.print(msg, true);
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}
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function debug(...args) {
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if (logDebug) {
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const stringifiedArgs = args.map((arg) =>
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typeof arg === "string" ? arg : JSON.stringify(arg)
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).join(" ");
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printStderr(`DEBUG ${logSource} - ${stringifiedArgs}\n`);
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}
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}
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function error(...args) {
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const stringifiedArgs = args.map((arg) =>
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typeof arg === "string" || arg instanceof Error
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? String(arg)
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: JSON.stringify(arg)
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).join(" ");
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printStderr(`ERROR ${logSource} = ${stringifiedArgs}\n`);
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}
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class AssertionError extends Error {
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constructor(msg) {
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super(msg);
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this.name = "AssertionError";
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}
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}
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function assert(cond, msg = "Assertion failed.") {
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if (!cond) {
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throw new AssertionError(msg);
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}
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}
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// deno-fmt-ignore
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const base64abc = [
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"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
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"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d",
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"e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",
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"t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7",
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"8", "9", "+", "/",
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];
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/** Taken from https://deno.land/std/encoding/base64.ts */
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function convertToBase64(data) {
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const uint8 = core.encode(data);
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let result = "",
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i;
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const l = uint8.length;
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for (i = 2; i < l; i += 3) {
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result += base64abc[uint8[i - 2] >> 2];
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result += base64abc[((uint8[i - 2] & 0x03) << 4) | (uint8[i - 1] >> 4)];
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result += base64abc[((uint8[i - 1] & 0x0f) << 2) | (uint8[i] >> 6)];
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result += base64abc[uint8[i] & 0x3f];
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}
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if (i === l + 1) {
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// 1 octet yet to write
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result += base64abc[uint8[i - 2] >> 2];
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result += base64abc[(uint8[i - 2] & 0x03) << 4];
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result += "==";
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}
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if (i === l) {
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// 2 octets yet to write
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result += base64abc[uint8[i - 2] >> 2];
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result += base64abc[((uint8[i - 2] & 0x03) << 4) | (uint8[i - 1] >> 4)];
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result += base64abc[(uint8[i - 1] & 0x0f) << 2];
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result += "=";
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}
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return result;
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}
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class SpecifierIsCjsCache {
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/** @type {Set<string>} */
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#cache = new Set();
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/** @param {[string, ts.Extension]} param */
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add([specifier, ext]) {
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if (ext === ".cjs" || ext === ".d.cts" || ext === ".cts") {
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this.#cache.add(specifier);
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}
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}
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has(specifier) {
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return this.#cache.has(specifier);
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}
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}
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// In the case of the LSP, this will only ever contain the assets.
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/** @type {Map<string, ts.SourceFile>} */
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const sourceFileCache = new Map();
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/** @type {string[]=} */
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let scriptFileNamesCache;
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/** @type {Map<string, string>} */
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const scriptVersionCache = new Map();
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/** @type {Map<string, boolean>} */
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const isNodeSourceFileCache = new Map();
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const isCjsCache = new SpecifierIsCjsCache();
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/**
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* @param {ts.CompilerOptions | ts.MinimalResolutionCacheHost} settingsOrHost
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* @returns {ts.CompilerOptions}
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*/
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function getCompilationSettings(settingsOrHost) {
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if (typeof settingsOrHost.getCompilationSettings === "function") {
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return settingsOrHost.getCompilationSettings();
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}
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return /** @type {ts.CompilerOptions} */ (settingsOrHost);
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}
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// We need to use a custom document registry in order to provide source files
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// with an impliedNodeFormat to the ts language service
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/** @type {Map<string, ts.SourceFile} */
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const documentRegistrySourceFileCache = new Map();
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const { getKeyForCompilationSettings } = ts.createDocumentRegistry(); // reuse this code
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/** @type {ts.DocumentRegistry} */
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const documentRegistry = {
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acquireDocument(
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fileName,
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compilationSettingsOrHost,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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) {
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const key = getKeyForCompilationSettings(
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getCompilationSettings(compilationSettingsOrHost),
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);
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return this.acquireDocumentWithKey(
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fileName,
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/** @type {ts.Path} */ (fileName),
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compilationSettingsOrHost,
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key,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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);
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},
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acquireDocumentWithKey(
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fileName,
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path,
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_compilationSettingsOrHost,
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key,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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) {
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const mapKey = path + key;
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let sourceFile = documentRegistrySourceFileCache.get(mapKey);
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if (!sourceFile || sourceFile.version !== version) {
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sourceFile = ts.createLanguageServiceSourceFile(
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fileName,
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scriptSnapshot,
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{
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...getCreateSourceFileOptions(sourceFileOptions),
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impliedNodeFormat: isCjsCache.has(fileName)
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? ts.ModuleKind.CommonJS
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: ts.ModuleKind.ESNext,
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},
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version,
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true,
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scriptKind,
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);
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documentRegistrySourceFileCache.set(mapKey, sourceFile);
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}
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return sourceFile;
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},
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updateDocument(
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fileName,
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compilationSettingsOrHost,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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) {
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const key = getKeyForCompilationSettings(
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getCompilationSettings(compilationSettingsOrHost),
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);
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return this.updateDocumentWithKey(
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fileName,
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/** @type {ts.Path} */ (fileName),
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compilationSettingsOrHost,
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key,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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);
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},
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updateDocumentWithKey(
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fileName,
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path,
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compilationSettingsOrHost,
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key,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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) {
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const mapKey = path + key;
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let sourceFile = documentRegistrySourceFileCache.get(mapKey) ??
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this.acquireDocumentWithKey(
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fileName,
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path,
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compilationSettingsOrHost,
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key,
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scriptSnapshot,
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version,
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scriptKind,
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sourceFileOptions,
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);
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if (sourceFile.version !== version) {
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sourceFile = ts.updateLanguageServiceSourceFile(
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sourceFile,
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scriptSnapshot,
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version,
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scriptSnapshot.getChangeRange(sourceFile.scriptSnapShot),
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);
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}
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return sourceFile;
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},
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getKeyForCompilationSettings(settings) {
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return getKeyForCompilationSettings(settings);
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},
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releaseDocument(
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fileName,
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compilationSettings,
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scriptKind,
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impliedNodeFormat,
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) {
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const key = getKeyForCompilationSettings(compilationSettings);
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return this.releaseDocumentWithKey(
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/** @type {ts.Path} */ (fileName),
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key,
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scriptKind,
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impliedNodeFormat,
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);
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},
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releaseDocumentWithKey(path, key, _scriptKind, _impliedNodeFormat) {
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const mapKey = path + key;
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documentRegistrySourceFileCache.delete(mapKey);
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},
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reportStats() {
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return "[]";
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},
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};
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ts.deno.setIsNodeSourceFileCallback((sourceFile) => {
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const fileName = sourceFile.fileName;
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let isNodeSourceFile = isNodeSourceFileCache.get(fileName);
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if (isNodeSourceFile == null) {
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const result = ops.op_is_node_file(fileName);
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isNodeSourceFile = /** @type {boolean} */ (result);
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isNodeSourceFileCache.set(fileName, isNodeSourceFile);
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}
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return isNodeSourceFile;
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});
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/** @param {ts.DiagnosticRelatedInformation} diagnostic */
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function fromRelatedInformation({
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start,
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length,
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file,
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messageText: msgText,
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...ri
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}) {
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let messageText;
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let messageChain;
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if (typeof msgText === "object") {
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messageChain = msgText;
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} else {
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messageText = msgText;
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}
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if (start !== undefined && length !== undefined && file) {
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const startPos = file.getLineAndCharacterOfPosition(start);
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const sourceLine = file.getFullText().split("\n")[startPos.line];
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const fileName = file.fileName;
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return {
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start: startPos,
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end: file.getLineAndCharacterOfPosition(start + length),
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fileName,
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messageChain,
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messageText,
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sourceLine,
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...ri,
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};
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} else {
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return {
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messageChain,
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messageText,
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...ri,
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};
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}
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}
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/** @param {ts.Diagnostic[]} diagnostics */
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function fromTypeScriptDiagnostic(diagnostics) {
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return diagnostics.map(({ relatedInformation: ri, source, ...diag }) => {
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/** @type {any} */
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const value = fromRelatedInformation(diag);
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value.relatedInformation = ri
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? ri.map(fromRelatedInformation)
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: undefined;
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value.source = source;
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return value;
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});
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}
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// Using incremental compile APIs requires that all
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// paths must be either relative or absolute. Since
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// analysis in Rust operates on fully resolved URLs,
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// it makes sense to use the same scheme here.
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const ASSETS_URL_PREFIX = "asset:///";
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/** Diagnostics that are intentionally ignored when compiling TypeScript in
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* Deno, as they provide misleading or incorrect information. */
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const IGNORED_DIAGNOSTICS = [
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// TS1452: 'resolution-mode' assertions are only supported when `moduleResolution` is `node16` or `nodenext`.
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// We specify the resolution mode to be CommonJS for some npm files and this
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// diagnostic gets generated even though we're using custom module resolution.
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1452,
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// TS2306: File '.../index.d.ts' is not a module.
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// We get this for `x-typescript-types` declaration files which don't export
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// anything. We prefer to treat these as modules with no exports.
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2306,
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// TS2688: Cannot find type definition file for '...'.
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// We ignore because type defintion files can end with '.ts'.
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2688,
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// TS2691: An import path cannot end with a '.ts' extension. Consider
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// importing 'bad-module' instead.
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2691,
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// TS2792: Cannot find module. Did you mean to set the 'moduleResolution'
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// option to 'node', or to add aliases to the 'paths' option?
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2792,
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// TS5009: Cannot find the common subdirectory path for the input files.
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5009,
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// TS5055: Cannot write file
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// 'http://localhost:4545/subdir/mt_application_x_javascript.j4.js'
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// because it would overwrite input file.
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5055,
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// TypeScript is overly opinionated that only CommonJS modules kinds can
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// support JSON imports. Allegedly this was fixed in
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// Microsoft/TypeScript#26825 but that doesn't seem to be working here,
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// so we will ignore complaints about this compiler setting.
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5070,
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// TS7016: Could not find a declaration file for module '...'. '...'
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// implicitly has an 'any' type. This is due to `allowJs` being off by
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// default but importing of a JavaScript module.
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7016,
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];
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const SNAPSHOT_COMPILE_OPTIONS = {
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esModuleInterop: true,
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jsx: ts.JsxEmit.React,
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module: ts.ModuleKind.ESNext,
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noEmit: true,
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strict: true,
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target: ts.ScriptTarget.ESNext,
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lib: ["lib.deno.window.d.ts"],
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};
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// todo(dsherret): can we remove this and just use ts.OperationCanceledException?
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/** Error thrown on cancellation. */
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class OperationCanceledError extends Error {
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}
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// todo(dsherret): we should investigate if throttling is really necessary
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/**
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* Inspired by ThrottledCancellationToken in ts server.
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*
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* We don't want to continually call back into Rust and so
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* we throttle cancellation checks to only occur once
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* in a while.
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* @implements {ts.CancellationToken}
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*/
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class ThrottledCancellationToken {
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#lastCheckTimeMs = 0;
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isCancellationRequested() {
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const timeMs = Date.now();
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// TypeScript uses 20ms
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if ((timeMs - this.#lastCheckTimeMs) < 20) {
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return false;
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}
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this.#lastCheckTimeMs = timeMs;
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return ops.op_is_cancelled();
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}
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throwIfCancellationRequested() {
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if (this.isCancellationRequested()) {
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throw new OperationCanceledError();
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}
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}
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}
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|
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/** @type {ts.CompilerOptions} */
|
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let compilationSettings = {};
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|
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/** @type {ts.LanguageService} */
|
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let languageService;
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|
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/** An object literal of the incremental compiler host, which provides the
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* specific "bindings" to the Deno environment that tsc needs to work.
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|
*
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* @type {ts.CompilerHost & ts.LanguageServiceHost} */
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const host = {
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fileExists(specifier) {
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if (logDebug) {
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debug(`host.fileExists("${specifier}")`);
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}
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specifier = normalizedToOriginalMap.get(specifier) ?? specifier;
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return ops.op_exists({ specifier });
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},
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readFile(specifier) {
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if (logDebug) {
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debug(`host.readFile("${specifier}")`);
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}
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return ops.op_load({ specifier }).data;
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},
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|
getCancellationToken() {
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// createLanguageService will call this immediately and cache it
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|
return new ThrottledCancellationToken();
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},
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|
getSourceFile(
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|
specifier,
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|
languageVersion,
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|
_onError,
|
|
_shouldCreateNewSourceFile,
|
|
) {
|
|
const createOptions = getCreateSourceFileOptions(languageVersion);
|
|
if (logDebug) {
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debug(
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`host.getSourceFile("${specifier}", ${
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ts.ScriptTarget[createOptions.languageVersion]
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})`,
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);
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}
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|
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// Needs the original specifier
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specifier = normalizedToOriginalMap.get(specifier) ?? specifier;
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|
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let sourceFile = sourceFileCache.get(specifier);
|
|
if (sourceFile) {
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return sourceFile;
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}
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|
|
/** @type {{ data: string; scriptKind: ts.ScriptKind; version: string; }} */
|
|
const { data, scriptKind, version } = ops.op_load(
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{ specifier },
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);
|
|
assert(
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|
data != null,
|
|
`"data" is unexpectedly null for "${specifier}".`,
|
|
);
|
|
sourceFile = ts.createSourceFile(
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specifier,
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data,
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{
|
|
...createOptions,
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impliedNodeFormat: isCjsCache.has(specifier)
|
|
? ts.ModuleKind.CommonJS
|
|
: ts.ModuleKind.ESNext,
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|
},
|
|
false,
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scriptKind,
|
|
);
|
|
sourceFile.moduleName = specifier;
|
|
sourceFile.version = version;
|
|
sourceFileCache.set(specifier, sourceFile);
|
|
scriptVersionCache.set(specifier, version);
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|
return sourceFile;
|
|
},
|
|
getDefaultLibFileName() {
|
|
return `${ASSETS_URL_PREFIX}lib.esnext.d.ts`;
|
|
},
|
|
getDefaultLibLocation() {
|
|
return ASSETS_URL_PREFIX;
|
|
},
|
|
writeFile(fileName, data, _writeByteOrderMark, _onError, _sourceFiles) {
|
|
if (logDebug) {
|
|
debug(`host.writeFile("${fileName}")`);
|
|
}
|
|
return ops.op_emit(
|
|
{ fileName, data },
|
|
);
|
|
},
|
|
getCurrentDirectory() {
|
|
if (logDebug) {
|
|
debug(`host.getCurrentDirectory()`);
|
|
}
|
|
return cwd ?? ops.op_cwd();
|
|
},
|
|
getCanonicalFileName(fileName) {
|
|
return fileName;
|
|
},
|
|
useCaseSensitiveFileNames() {
|
|
return true;
|
|
},
|
|
getNewLine() {
|
|
return "\n";
|
|
},
|
|
resolveTypeReferenceDirectives(
|
|
typeDirectiveNames,
|
|
containingFilePath,
|
|
redirectedReference,
|
|
options,
|
|
containingFileMode,
|
|
) {
|
|
return typeDirectiveNames.map((arg) => {
|
|
/** @type {ts.FileReference} */
|
|
const fileReference = typeof arg === "string"
|
|
? {
|
|
pos: -1,
|
|
end: -1,
|
|
fileName: arg,
|
|
}
|
|
: arg;
|
|
if (fileReference.fileName.startsWith("npm:")) {
|
|
/** @type {[string, ts.Extension] | undefined} */
|
|
const resolved = ops.op_resolve({
|
|
specifiers: [fileReference.fileName],
|
|
base: containingFilePath,
|
|
})?.[0];
|
|
if (resolved) {
|
|
isCjsCache.add(resolved);
|
|
return {
|
|
primary: true,
|
|
resolvedFileName: resolved[0],
|
|
};
|
|
} else {
|
|
return undefined;
|
|
}
|
|
} else {
|
|
return ts.resolveTypeReferenceDirective(
|
|
fileReference.fileName,
|
|
containingFilePath,
|
|
options,
|
|
host,
|
|
redirectedReference,
|
|
undefined,
|
|
containingFileMode ?? fileReference.resolutionMode,
|
|
).resolvedTypeReferenceDirective;
|
|
}
|
|
});
|
|
},
|
|
resolveModuleNames(specifiers, base) {
|
|
if (logDebug) {
|
|
debug(`host.resolveModuleNames()`);
|
|
debug(` base: ${base}`);
|
|
debug(` specifiers: ${specifiers.join(", ")}`);
|
|
}
|
|
/** @type {Array<[string, ts.Extension] | undefined>} */
|
|
const resolved = ops.op_resolve({
|
|
specifiers,
|
|
base,
|
|
});
|
|
if (resolved) {
|
|
const result = resolved.map((item) => {
|
|
if (item) {
|
|
isCjsCache.add(item);
|
|
const [resolvedFileName, extension] = item;
|
|
if (resolvedFileName.startsWith("node:")) {
|
|
// probably means the user doesn't have @types/node, so resolve to undefined
|
|
return undefined;
|
|
}
|
|
return {
|
|
resolvedFileName,
|
|
extension,
|
|
isExternalLibraryImport: false,
|
|
};
|
|
}
|
|
return undefined;
|
|
});
|
|
result.length = specifiers.length;
|
|
return result;
|
|
} else {
|
|
return new Array(specifiers.length);
|
|
}
|
|
},
|
|
createHash(data) {
|
|
return ops.op_create_hash({ data }).hash;
|
|
},
|
|
|
|
// LanguageServiceHost
|
|
getCompilationSettings() {
|
|
if (logDebug) {
|
|
debug("host.getCompilationSettings()");
|
|
}
|
|
return compilationSettings;
|
|
},
|
|
getScriptFileNames() {
|
|
if (logDebug) {
|
|
debug("host.getScriptFileNames()");
|
|
}
|
|
// tsc requests the script file names multiple times even though it can't
|
|
// possibly have changed, so we will memoize it on a per request basis.
|
|
if (scriptFileNamesCache) {
|
|
return scriptFileNamesCache;
|
|
}
|
|
return scriptFileNamesCache = ops.op_script_names();
|
|
},
|
|
getScriptVersion(specifier) {
|
|
if (logDebug) {
|
|
debug(`host.getScriptVersion("${specifier}")`);
|
|
}
|
|
const sourceFile = sourceFileCache.get(specifier);
|
|
if (sourceFile) {
|
|
return sourceFile.version ?? "1";
|
|
}
|
|
// tsc requests the script version multiple times even though it can't
|
|
// possibly have changed, so we will memoize it on a per request basis.
|
|
if (scriptVersionCache.has(specifier)) {
|
|
return scriptVersionCache.get(specifier);
|
|
}
|
|
const scriptVersion = ops.op_script_version({ specifier });
|
|
scriptVersionCache.set(specifier, scriptVersion);
|
|
return scriptVersion;
|
|
},
|
|
getScriptSnapshot(specifier) {
|
|
if (logDebug) {
|
|
debug(`host.getScriptSnapshot("${specifier}")`);
|
|
}
|
|
const sourceFile = sourceFileCache.get(specifier);
|
|
if (sourceFile) {
|
|
return {
|
|
getText(start, end) {
|
|
return sourceFile.text.substring(start, end);
|
|
},
|
|
getLength() {
|
|
return sourceFile.text.length;
|
|
},
|
|
getChangeRange() {
|
|
return undefined;
|
|
},
|
|
};
|
|
}
|
|
|
|
const fileInfo = ops.op_load(
|
|
{ specifier },
|
|
);
|
|
if (fileInfo) {
|
|
scriptVersionCache.set(specifier, fileInfo.version);
|
|
return ts.ScriptSnapshot.fromString(fileInfo.data);
|
|
} else {
|
|
return undefined;
|
|
}
|
|
},
|
|
};
|
|
|
|
// override the npm install @types package diagnostics to be deno specific
|
|
ts.setLocalizedDiagnosticMessages((() => {
|
|
const nodeMessage = "Cannot find name '{0}'."; // don't offer any suggestions
|
|
const jqueryMessage =
|
|
"Cannot find name '{0}'. Did you mean to import jQuery? Try adding `import $ from \"npm:jquery\";`.";
|
|
return {
|
|
"Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_save_dev_types_Slashno_2580":
|
|
nodeMessage,
|
|
"Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_node_Try_npm_i_save_dev_types_Slashno_2591":
|
|
nodeMessage,
|
|
"Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_save_dev_types_Slash_2581":
|
|
jqueryMessage,
|
|
"Cannot_find_name_0_Do_you_need_to_install_type_definitions_for_jQuery_Try_npm_i_save_dev_types_Slash_2592":
|
|
jqueryMessage,
|
|
};
|
|
})());
|
|
|
|
/** @type {Array<[string, number]>} */
|
|
const stats = [];
|
|
let statsStart = 0;
|
|
|
|
function performanceStart() {
|
|
stats.length = 0;
|
|
statsStart = Date.now();
|
|
ts.performance.enable();
|
|
}
|
|
|
|
/**
|
|
* @param {{ program: ts.Program | ts.EmitAndSemanticDiagnosticsBuilderProgram, fileCount?: number }} options
|
|
*/
|
|
function performanceProgram({ program, fileCount }) {
|
|
if (program) {
|
|
if ("getProgram" in program) {
|
|
program = program.getProgram();
|
|
}
|
|
stats.push(["Files", program.getSourceFiles().length]);
|
|
stats.push(["Nodes", program.getNodeCount()]);
|
|
stats.push(["Identifiers", program.getIdentifierCount()]);
|
|
stats.push(["Symbols", program.getSymbolCount()]);
|
|
stats.push(["Types", program.getTypeCount()]);
|
|
stats.push(["Instantiations", program.getInstantiationCount()]);
|
|
} else if (fileCount != null) {
|
|
stats.push(["Files", fileCount]);
|
|
}
|
|
const programTime = ts.performance.getDuration("Program");
|
|
const bindTime = ts.performance.getDuration("Bind");
|
|
const checkTime = ts.performance.getDuration("Check");
|
|
const emitTime = ts.performance.getDuration("Emit");
|
|
stats.push(["Parse time", programTime]);
|
|
stats.push(["Bind time", bindTime]);
|
|
stats.push(["Check time", checkTime]);
|
|
stats.push(["Emit time", emitTime]);
|
|
stats.push(
|
|
["Total TS time", programTime + bindTime + checkTime + emitTime],
|
|
);
|
|
}
|
|
|
|
function performanceEnd() {
|
|
const duration = Date.now() - statsStart;
|
|
stats.push(["Compile time", duration]);
|
|
return stats;
|
|
}
|
|
|
|
/**
|
|
* @typedef {object} Request
|
|
* @property {Record<string, any>} config
|
|
* @property {boolean} debug
|
|
* @property {string[]} rootNames
|
|
*/
|
|
|
|
/**
|
|
* Checks the normalized version of the root name and stores it in
|
|
* `normalizedToOriginalMap`. If the normalized specifier is already
|
|
* registered for the different root name, it throws an AssertionError.
|
|
*
|
|
* @param {string} rootName
|
|
*/
|
|
function checkNormalizedPath(rootName) {
|
|
const normalized = ts.normalizePath(rootName);
|
|
const originalRootName = normalizedToOriginalMap.get(normalized);
|
|
if (typeof originalRootName === "undefined") {
|
|
normalizedToOriginalMap.set(normalized, rootName);
|
|
} else if (originalRootName !== rootName) {
|
|
// The different root names are normalizd to the same path.
|
|
// This will cause problem when looking up the source for each.
|
|
throw new AssertionError(
|
|
`The different names for the same normalized specifier are specified: normalized=${normalized}, rootNames=${originalRootName},${rootName}`,
|
|
);
|
|
}
|
|
}
|
|
|
|
/** The API that is called by Rust when executing a request.
|
|
* @param {Request} request
|
|
*/
|
|
function exec({ config, debug: debugFlag, rootNames }) {
|
|
// https://github.com/microsoft/TypeScript/issues/49150
|
|
ts.base64encode = function (host, input) {
|
|
if (host && host.base64encode) {
|
|
return host.base64encode(input);
|
|
}
|
|
return convertToBase64(input);
|
|
};
|
|
|
|
setLogDebug(debugFlag, "TS");
|
|
performanceStart();
|
|
if (logDebug) {
|
|
debug(">>> exec start", { rootNames });
|
|
debug(config);
|
|
}
|
|
|
|
rootNames.forEach(checkNormalizedPath);
|
|
|
|
const { options, errors: configFileParsingDiagnostics } = ts
|
|
.convertCompilerOptionsFromJson(config, "");
|
|
// The `allowNonTsExtensions` is a "hidden" compiler option used in VSCode
|
|
// which is not allowed to be passed in JSON, we need it to allow special
|
|
// URLs which Deno supports. So we need to either ignore the diagnostic, or
|
|
// inject it ourselves.
|
|
Object.assign(options, { allowNonTsExtensions: true });
|
|
const program = ts.createIncrementalProgram({
|
|
rootNames,
|
|
options,
|
|
host,
|
|
configFileParsingDiagnostics,
|
|
});
|
|
|
|
const diagnostics = [
|
|
...program.getConfigFileParsingDiagnostics(),
|
|
...program.getSyntacticDiagnostics(),
|
|
...program.getOptionsDiagnostics(),
|
|
...program.getGlobalDiagnostics(),
|
|
...program.getSemanticDiagnostics(),
|
|
].filter((diagnostic) => {
|
|
if (IGNORED_DIAGNOSTICS.includes(diagnostic.code)) {
|
|
return false;
|
|
} else if (
|
|
diagnostic.code === 1259 &&
|
|
typeof diagnostic.messageText === "string" &&
|
|
diagnostic.messageText.startsWith(
|
|
"Module '\"deno:///missing_dependency.d.ts\"' can only be default-imported using the 'allowSyntheticDefaultImports' flag",
|
|
)
|
|
) {
|
|
// For now, ignore diagnostics like:
|
|
// > TS1259 [ERROR]: Module '"deno:///missing_dependency.d.ts"' can only be default-imported using the 'allowSyntheticDefaultImports' flag
|
|
// This diagnostic has surfaced due to supporting node cjs imports because this module does `export =`.
|
|
// See discussion in https://github.com/microsoft/TypeScript/pull/51136
|
|
return false;
|
|
} else {
|
|
return true;
|
|
}
|
|
});
|
|
|
|
// emit the tsbuildinfo file
|
|
// @ts-ignore: emitBuildInfo is not exposed (https://github.com/microsoft/TypeScript/issues/49871)
|
|
program.emitBuildInfo(host.writeFile);
|
|
|
|
performanceProgram({ program });
|
|
|
|
ops.op_respond({
|
|
diagnostics: fromTypeScriptDiagnostic(diagnostics),
|
|
stats: performanceEnd(),
|
|
});
|
|
debug("<<< exec stop");
|
|
}
|
|
|
|
function getAssets() {
|
|
/** @type {{ specifier: string; text: string; }[]} */
|
|
const assets = [];
|
|
for (const sourceFile of sourceFileCache.values()) {
|
|
if (sourceFile.fileName.startsWith(ASSETS_URL_PREFIX)) {
|
|
assets.push({
|
|
specifier: sourceFile.fileName,
|
|
text: sourceFile.text,
|
|
});
|
|
}
|
|
}
|
|
return assets;
|
|
}
|
|
|
|
/**
|
|
* @param {number} id
|
|
* @param {any} data
|
|
*/
|
|
function respond(id, data = null) {
|
|
ops.op_respond({ id, data });
|
|
}
|
|
|
|
/**
|
|
* @param {LanguageServerRequest} request
|
|
*/
|
|
function serverRequest({ id, ...request }) {
|
|
if (logDebug) {
|
|
debug(`serverRequest()`, { id, ...request });
|
|
}
|
|
|
|
// reset all memoized source files names
|
|
scriptFileNamesCache = undefined;
|
|
// evict all memoized source file versions
|
|
scriptVersionCache.clear();
|
|
switch (request.method) {
|
|
case "restart": {
|
|
serverRestart();
|
|
return respond(id, true);
|
|
}
|
|
case "configure": {
|
|
const { options, errors } = ts
|
|
.convertCompilerOptionsFromJson(request.compilerOptions, "");
|
|
Object.assign(options, { allowNonTsExtensions: true });
|
|
if (errors.length) {
|
|
debug(ts.formatDiagnostics(errors, host));
|
|
}
|
|
compilationSettings = options;
|
|
return respond(id, true);
|
|
}
|
|
case "findRenameLocations": {
|
|
return respond(
|
|
id,
|
|
languageService.findRenameLocations(
|
|
request.specifier,
|
|
request.position,
|
|
request.findInStrings,
|
|
request.findInComments,
|
|
request.providePrefixAndSuffixTextForRename,
|
|
),
|
|
);
|
|
}
|
|
case "getAssets": {
|
|
return respond(id, getAssets());
|
|
}
|
|
case "getApplicableRefactors": {
|
|
return respond(
|
|
id,
|
|
languageService.getApplicableRefactors(
|
|
request.specifier,
|
|
request.range,
|
|
{
|
|
quotePreference: "double",
|
|
allowTextChangesInNewFiles: true,
|
|
provideRefactorNotApplicableReason: true,
|
|
},
|
|
undefined,
|
|
request.kind,
|
|
),
|
|
);
|
|
}
|
|
case "getEditsForRefactor": {
|
|
return respond(
|
|
id,
|
|
languageService.getEditsForRefactor(
|
|
request.specifier,
|
|
{
|
|
indentSize: 2,
|
|
indentStyle: ts.IndentStyle.Smart,
|
|
semicolons: ts.SemicolonPreference.Insert,
|
|
convertTabsToSpaces: true,
|
|
insertSpaceBeforeAndAfterBinaryOperators: true,
|
|
insertSpaceAfterCommaDelimiter: true,
|
|
},
|
|
request.range,
|
|
request.refactorName,
|
|
request.actionName,
|
|
{
|
|
quotePreference: "double",
|
|
},
|
|
),
|
|
);
|
|
}
|
|
case "getCodeFixes": {
|
|
return respond(
|
|
id,
|
|
languageService.getCodeFixesAtPosition(
|
|
request.specifier,
|
|
request.startPosition,
|
|
request.endPosition,
|
|
request.errorCodes.map((v) => Number(v)),
|
|
{
|
|
indentSize: 2,
|
|
indentStyle: ts.IndentStyle.Block,
|
|
semicolons: ts.SemicolonPreference.Insert,
|
|
},
|
|
{
|
|
quotePreference: "double",
|
|
},
|
|
),
|
|
);
|
|
}
|
|
case "getCombinedCodeFix": {
|
|
return respond(
|
|
id,
|
|
languageService.getCombinedCodeFix(
|
|
{
|
|
type: "file",
|
|
fileName: request.specifier,
|
|
},
|
|
request.fixId,
|
|
{
|
|
indentSize: 2,
|
|
indentStyle: ts.IndentStyle.Block,
|
|
semicolons: ts.SemicolonPreference.Insert,
|
|
},
|
|
{
|
|
quotePreference: "double",
|
|
},
|
|
),
|
|
);
|
|
}
|
|
case "getCompletionDetails": {
|
|
if (logDebug) {
|
|
debug("request", request);
|
|
}
|
|
return respond(
|
|
id,
|
|
languageService.getCompletionEntryDetails(
|
|
request.args.specifier,
|
|
request.args.position,
|
|
request.args.name,
|
|
{},
|
|
request.args.source,
|
|
request.args.preferences,
|
|
request.args.data,
|
|
),
|
|
);
|
|
}
|
|
case "getCompletions": {
|
|
return respond(
|
|
id,
|
|
languageService.getCompletionsAtPosition(
|
|
request.specifier,
|
|
request.position,
|
|
request.preferences,
|
|
),
|
|
);
|
|
}
|
|
case "getDefinition": {
|
|
return respond(
|
|
id,
|
|
languageService.getDefinitionAndBoundSpan(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "getDiagnostics": {
|
|
try {
|
|
/** @type {Record<string, any[]>} */
|
|
const diagnosticMap = {};
|
|
for (const specifier of request.specifiers) {
|
|
diagnosticMap[specifier] = fromTypeScriptDiagnostic([
|
|
...languageService.getSemanticDiagnostics(specifier),
|
|
...languageService.getSuggestionDiagnostics(specifier),
|
|
...languageService.getSyntacticDiagnostics(specifier),
|
|
].filter(({ code }) => !IGNORED_DIAGNOSTICS.includes(code)));
|
|
}
|
|
return respond(id, diagnosticMap);
|
|
} catch (e) {
|
|
if (
|
|
!(e instanceof OperationCanceledError ||
|
|
e instanceof ts.OperationCanceledException)
|
|
) {
|
|
if ("stack" in e) {
|
|
error(e.stack);
|
|
} else {
|
|
error(e);
|
|
}
|
|
}
|
|
return respond(id, {});
|
|
}
|
|
}
|
|
case "getDocumentHighlights": {
|
|
return respond(
|
|
id,
|
|
languageService.getDocumentHighlights(
|
|
request.specifier,
|
|
request.position,
|
|
request.filesToSearch,
|
|
),
|
|
);
|
|
}
|
|
case "getEncodedSemanticClassifications": {
|
|
return respond(
|
|
id,
|
|
languageService.getEncodedSemanticClassifications(
|
|
request.specifier,
|
|
request.span,
|
|
ts.SemanticClassificationFormat.TwentyTwenty,
|
|
),
|
|
);
|
|
}
|
|
case "getImplementation": {
|
|
return respond(
|
|
id,
|
|
languageService.getImplementationAtPosition(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "getNavigateToItems": {
|
|
return respond(
|
|
id,
|
|
languageService.getNavigateToItems(
|
|
request.search,
|
|
request.maxResultCount,
|
|
request.fileName,
|
|
),
|
|
);
|
|
}
|
|
case "getNavigationTree": {
|
|
return respond(
|
|
id,
|
|
languageService.getNavigationTree(request.specifier),
|
|
);
|
|
}
|
|
case "getOutliningSpans": {
|
|
return respond(
|
|
id,
|
|
languageService.getOutliningSpans(
|
|
request.specifier,
|
|
),
|
|
);
|
|
}
|
|
case "getQuickInfo": {
|
|
return respond(
|
|
id,
|
|
languageService.getQuickInfoAtPosition(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "getReferences": {
|
|
return respond(
|
|
id,
|
|
languageService.getReferencesAtPosition(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "getSignatureHelpItems": {
|
|
return respond(
|
|
id,
|
|
languageService.getSignatureHelpItems(
|
|
request.specifier,
|
|
request.position,
|
|
request.options,
|
|
),
|
|
);
|
|
}
|
|
case "getSmartSelectionRange": {
|
|
return respond(
|
|
id,
|
|
languageService.getSmartSelectionRange(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "getSupportedCodeFixes": {
|
|
return respond(
|
|
id,
|
|
ts.getSupportedCodeFixes(),
|
|
);
|
|
}
|
|
case "getTypeDefinition": {
|
|
return respond(
|
|
id,
|
|
languageService.getTypeDefinitionAtPosition(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "prepareCallHierarchy": {
|
|
return respond(
|
|
id,
|
|
languageService.prepareCallHierarchy(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "provideCallHierarchyIncomingCalls": {
|
|
return respond(
|
|
id,
|
|
languageService.provideCallHierarchyIncomingCalls(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "provideCallHierarchyOutgoingCalls": {
|
|
return respond(
|
|
id,
|
|
languageService.provideCallHierarchyOutgoingCalls(
|
|
request.specifier,
|
|
request.position,
|
|
),
|
|
);
|
|
}
|
|
case "provideInlayHints":
|
|
return respond(
|
|
id,
|
|
languageService.provideInlayHints(
|
|
request.specifier,
|
|
request.span,
|
|
request.preferences,
|
|
),
|
|
);
|
|
default:
|
|
throw new TypeError(
|
|
// @ts-ignore exhausted case statement sets type to never
|
|
`Invalid request method for request: "${request.method}" (${id})`,
|
|
);
|
|
}
|
|
}
|
|
|
|
/** @param {{ debug: boolean; rootUri?: string; }} init */
|
|
function serverInit({ debug: debugFlag, rootUri }) {
|
|
if (hasStarted) {
|
|
throw new Error("The language server has already been initialized.");
|
|
}
|
|
hasStarted = true;
|
|
cwd = rootUri;
|
|
languageService = ts.createLanguageService(host, documentRegistry);
|
|
setLogDebug(debugFlag, "TSLS");
|
|
debug("serverInit()");
|
|
}
|
|
|
|
function serverRestart() {
|
|
languageService = ts.createLanguageService(host, documentRegistry);
|
|
isNodeSourceFileCache.clear();
|
|
debug("serverRestart()");
|
|
}
|
|
|
|
let hasStarted = false;
|
|
|
|
/** Startup the runtime environment, setting various flags.
|
|
* @param {{ debugFlag?: boolean; legacyFlag?: boolean; }} msg
|
|
*/
|
|
function startup({ debugFlag = false }) {
|
|
if (hasStarted) {
|
|
throw new Error("The compiler runtime already started.");
|
|
}
|
|
hasStarted = true;
|
|
setLogDebug(!!debugFlag, "TS");
|
|
}
|
|
|
|
// A build time only op that provides some setup information that is used to
|
|
// ensure the snapshot is setup properly.
|
|
/** @type {{ buildSpecifier: string; libs: string[] }} */
|
|
|
|
const { buildSpecifier, libs } = ops.op_build_info();
|
|
for (const lib of libs) {
|
|
const specifier = `lib.${lib}.d.ts`;
|
|
// we are using internal APIs here to "inject" our custom libraries into
|
|
// tsc, so things like `"lib": [ "deno.ns" ]` are supported.
|
|
if (!ts.libs.includes(lib)) {
|
|
ts.libs.push(lib);
|
|
ts.libMap.set(lib, `lib.${lib}.d.ts`);
|
|
}
|
|
// we are caching in memory common type libraries that will be re-used by
|
|
// tsc on when the snapshot is restored
|
|
assert(
|
|
host.getSourceFile(
|
|
`${ASSETS_URL_PREFIX}${specifier}`,
|
|
ts.ScriptTarget.ESNext,
|
|
),
|
|
);
|
|
}
|
|
// this helps ensure as much as possible is in memory that is re-usable
|
|
// before the snapshotting is done, which helps unsure fast "startup" for
|
|
// subsequent uses of tsc in Deno.
|
|
const TS_SNAPSHOT_PROGRAM = ts.createProgram({
|
|
rootNames: [buildSpecifier],
|
|
options: SNAPSHOT_COMPILE_OPTIONS,
|
|
host,
|
|
});
|
|
assert(ts.getPreEmitDiagnostics(TS_SNAPSHOT_PROGRAM).length === 0);
|
|
|
|
// remove this now that we don't need it anymore for warming up tsc
|
|
sourceFileCache.delete(buildSpecifier);
|
|
|
|
// exposes the two functions that are called by `tsc::exec()` when type
|
|
// checking TypeScript.
|
|
globalThis.startup = startup;
|
|
globalThis.exec = exec;
|
|
globalThis.getAssets = getAssets;
|
|
|
|
// exposes the functions that are called when the compiler is used as a
|
|
// language service.
|
|
globalThis.serverInit = serverInit;
|
|
globalThis.serverRequest = serverRequest;
|
|
})(this);
|