mirror of
https://github.com/denoland/deno.git
synced 2025-01-19 12:16:17 -05:00
70c822bfe2
Fixes https://github.com/denoland/deno/issues/25762. Note that some of the things in that issue are not resolved (vite/client types not working properly which has other root causes), but the wildcard module augmentation specifically is fixed by this. We were telling TSC that files with unknown media types had an extension of `.js`, so the ambient module declarations weren't applying. Instead, just don't resolve them, so the ambient declaration applies.
1468 lines
45 KiB
JavaScript
1468 lines
45 KiB
JavaScript
// Copyright 2018-2025 the Deno authors. 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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((/** @type {any} */ 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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// 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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/** @type {ReadonlySet<string>} */
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const unstableDenoProps = new Set([
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"AtomicOperation",
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"DatagramConn",
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"Kv",
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"KvListIterator",
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"KvU64",
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"UnixConnectOptions",
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"UnixListenOptions",
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"listen",
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"listenDatagram",
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"openKv",
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"connectQuic",
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"listenQuic",
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"QuicBidirectionalStream",
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"QuicConn",
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"QuicListener",
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"QuicReceiveStream",
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"QuicSendStream",
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]);
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const unstableMsgSuggestion =
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"If not, try changing the 'lib' compiler option to include 'deno.unstable' " +
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"or add a triple-slash directive to the top of your entrypoint (main file): " +
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'/// <reference lib="deno.unstable" />';
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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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/**
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* @param debug {boolean}
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* @param source {string}
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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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/** @param msg {string} */
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function printStderr(msg) {
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core.print(msg, true);
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}
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/** @param args {any[]} */
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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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/** @param args {any[]} */
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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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/** @param msg {string} */
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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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/** @param cond {boolean} */
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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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// 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 {Map<string, ts.IScriptSnapshot & { isCjs?: boolean; }>} */
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const scriptSnapshotCache = new Map();
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/** @type {Map<string, number>} */
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const sourceRefCounts = new Map();
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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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// Maps asset specifiers to the first scope that the asset was loaded into.
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/** @type {Map<string, string | null>} */
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const assetScopes = new Map();
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/** @type {number | null} */
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let projectVersionCache = null;
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/** @type {string | null} */
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let lastRequestMethod = null;
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/** @type {string | null} */
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let lastRequestScope = null;
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const ChangeKind = {
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Opened: 0,
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Modified: 1,
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Closed: 2,
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};
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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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const isCjs = /** @type {any} */ (scriptSnapshot).isCjs;
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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: isCjs
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? ts.ModuleKind.CommonJS
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: ts.ModuleKind.ESNext,
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// in the lsp we want to be able to show documentation
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jsDocParsingMode: ts.JSDocParsingMode.ParseAll,
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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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const sourceRefCount = sourceRefCounts.get(fileName) ?? 0;
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sourceRefCounts.set(fileName, sourceRefCount + 1);
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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(
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/** @type {ts.IScriptSnapshot} */ (sourceFile.scriptSnapShot),
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),
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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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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 sourceRefCount = sourceRefCounts.get(path) ?? 1;
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if (sourceRefCount <= 1) {
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sourceRefCounts.delete(path);
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// We call `cleanupSemanticCache` for other purposes, don't bust the
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// source cache in this case.
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if (lastRequestMethod != "cleanupSemanticCache") {
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const mapKey = path + key;
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documentRegistrySourceFileCache.delete(mapKey);
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scriptSnapshotCache.delete(path);
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ops.op_release(path);
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}
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} else {
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sourceRefCounts.set(path, sourceRefCount - 1);
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}
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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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/**
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* @param msg {string}
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* @param code {number}
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*/
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function formatMessage(msg, code) {
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switch (code) {
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case 2304: {
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if (msg === "Cannot find name 'Deno'.") {
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msg += " Do you need to change your target library? " +
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"Try changing the 'lib' compiler option to include 'deno.ns' " +
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"or add a triple-slash directive to the top of your entrypoint " +
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'(main file): /// <reference lib="deno.ns" />';
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}
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return msg;
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}
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case 2339: {
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const property = getProperty();
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if (property && unstableDenoProps.has(property)) {
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return `${msg} 'Deno.${property}' is an unstable API. ${unstableMsgSuggestion}`;
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}
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return msg;
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}
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default: {
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const property = getProperty();
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if (property && unstableDenoProps.has(property)) {
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const suggestion = getMsgSuggestion();
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if (suggestion) {
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return `${msg} 'Deno.${property}' is an unstable API. Did you mean '${suggestion}'? ${unstableMsgSuggestion}`;
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}
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}
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return msg;
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}
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}
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function getProperty() {
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return /Property '([^']+)' does not exist on type 'typeof Deno'/
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.exec(msg)?.[1];
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}
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function getMsgSuggestion() {
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return / Did you mean '([^']+)'\?/.exec(msg)?.[1];
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}
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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 = formatMessage(msgText, ri.code);
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}
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if (start !== undefined && length !== undefined && file) {
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let startPos = file.getLineAndCharacterOfPosition(start);
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let sourceLine = file.getFullText().split("\n")[startPos.line];
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const originalFileName = file.fileName;
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const fileName = ops.op_remap_specifier
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? (ops.op_remap_specifier(file.fileName) ?? file.fileName)
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: file.fileName;
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// Bit of a hack to detect when we have a .wasm file and want to hide
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// the .d.ts text. This is not perfect, but will work in most scenarios
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if (
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fileName.endsWith(".wasm") && originalFileName.endsWith(".wasm.d.mts")
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) {
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startPos = { line: 0, character: 0 };
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sourceLine = undefined;
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}
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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 {readonly ts.Diagnostic[]} diagnostics */
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function fromTypeScriptDiagnostics(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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const CACHE_URL_PREFIX = "cache:///";
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|
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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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// Module '...' cannot be imported using this construct. The specifier only resolves to an
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// ES module, which cannot be imported with 'require'.
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1471,
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// TS1479: The current file is a CommonJS module whose imports will produce 'require' calls;
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// however, the referenced file is an ECMAScript module and cannot be imported with 'require'.
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1479,
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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 '...'.
|
|
// We ignore because type definition files can end with '.ts'.
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2688,
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|
// TS2792: Cannot find module. Did you mean to set the 'moduleResolution'
|
|
// option to 'node', or to add aliases to the 'paths' option?
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2792,
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// TS2307: Cannot find module '{0}' or its corresponding type declarations.
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2307,
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|
// Relative import errors to add an extension
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2834,
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2835,
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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
|
|
// default but importing of a JavaScript module.
|
|
7016,
|
|
];
|
|
|
|
const SNAPSHOT_COMPILE_OPTIONS = {
|
|
esModuleInterop: true,
|
|
jsx: ts.JsxEmit.React,
|
|
module: ts.ModuleKind.ESNext,
|
|
noEmit: true,
|
|
strict: true,
|
|
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?
|
|
/** Error thrown on cancellation. */
|
|
class OperationCanceledError extends Error {
|
|
}
|
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|
|
/**
|
|
* This implementation calls into Rust to check if Tokio's cancellation token
|
|
* has already been canceled.
|
|
* @implements {ts.CancellationToken}
|
|
*/
|
|
class CancellationToken {
|
|
isCancellationRequested() {
|
|
return ops.op_is_cancelled();
|
|
}
|
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|
|
throwIfCancellationRequested() {
|
|
if (this.isCancellationRequested()) {
|
|
throw new OperationCanceledError();
|
|
}
|
|
}
|
|
}
|
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|
|
/** @typedef {{
|
|
* ls: ts.LanguageService & { [k:string]: any },
|
|
* compilerOptions: ts.CompilerOptions,
|
|
* }} LanguageServiceEntry */
|
|
/** @type {{ unscoped: LanguageServiceEntry, byScope: Map<string, LanguageServiceEntry> }} */
|
|
const languageServiceEntries = {
|
|
// @ts-ignore Will be set later.
|
|
unscoped: null,
|
|
byScope: new Map(),
|
|
};
|
|
|
|
/** @type {{ unscoped: string[], byScope: Map<string, string[]> } | null} */
|
|
let scriptNamesCache = null;
|
|
|
|
/** An object literal of the incremental compiler host, which provides the
|
|
* specific "bindings" to the Deno environment that tsc needs to work.
|
|
*
|
|
* @type {ts.CompilerHost & ts.LanguageServiceHost} */
|
|
const host = {
|
|
fileExists(specifier) {
|
|
if (logDebug) {
|
|
debug(`host.fileExists("${specifier}")`);
|
|
}
|
|
// TODO(bartlomieju): is this assumption still valid?
|
|
// this is used by typescript to find the libs path
|
|
// so we can completely ignore it
|
|
return false;
|
|
},
|
|
readFile(specifier) {
|
|
if (logDebug) {
|
|
debug(`host.readFile("${specifier}")`);
|
|
}
|
|
return ops.op_load(specifier)?.data;
|
|
},
|
|
getCancellationToken() {
|
|
// createLanguageService will call this immediately and cache it
|
|
return new CancellationToken();
|
|
},
|
|
getProjectVersion() {
|
|
if (
|
|
projectVersionCache
|
|
) {
|
|
debug(`getProjectVersion cache hit : ${projectVersionCache}`);
|
|
return projectVersionCache;
|
|
}
|
|
const projectVersion = ops.op_project_version();
|
|
projectVersionCache = projectVersion;
|
|
debug(`getProjectVersion cache miss : ${projectVersionCache}`);
|
|
return projectVersion;
|
|
},
|
|
// @ts-ignore Undocumented method.
|
|
getModuleSpecifierCache() {
|
|
return moduleSpecifierCache;
|
|
},
|
|
// @ts-ignore Undocumented method.
|
|
getCachedExportInfoMap() {
|
|
return exportMapCache;
|
|
},
|
|
getGlobalTypingsCacheLocation() {
|
|
return undefined;
|
|
},
|
|
// @ts-ignore Undocumented method.
|
|
toPath(fileName) {
|
|
// @ts-ignore Undocumented function.
|
|
ts.toPath(
|
|
fileName,
|
|
this.getCurrentDirectory(),
|
|
this.getCanonicalFileName.bind(this),
|
|
);
|
|
},
|
|
// @ts-ignore Undocumented method.
|
|
watchNodeModulesForPackageJsonChanges() {
|
|
return { close() {} };
|
|
},
|
|
getSourceFile(
|
|
specifier,
|
|
languageVersion,
|
|
_onError,
|
|
// this is not used by the lsp because source
|
|
// files are created in the document registry
|
|
_shouldCreateNewSourceFile,
|
|
) {
|
|
if (logDebug) {
|
|
debug(
|
|
`host.getSourceFile("${specifier}", ${
|
|
ts.ScriptTarget[
|
|
getCreateSourceFileOptions(languageVersion).languageVersion
|
|
]
|
|
})`,
|
|
);
|
|
}
|
|
|
|
// Needs the original specifier
|
|
specifier = normalizedToOriginalMap.get(specifier) ?? specifier;
|
|
|
|
let sourceFile = sourceFileCache.get(specifier);
|
|
if (sourceFile) {
|
|
return sourceFile;
|
|
}
|
|
|
|
/** @type {{ data: string; scriptKind: ts.ScriptKind; version: string; isCjs: boolean }} */
|
|
const fileInfo = ops.op_load(specifier);
|
|
if (!fileInfo) {
|
|
return undefined;
|
|
}
|
|
const { data, scriptKind, version, isCjs } = fileInfo;
|
|
assert(
|
|
data != null,
|
|
`"data" is unexpectedly null for "${specifier}".`,
|
|
);
|
|
|
|
sourceFile = ts.createSourceFile(
|
|
specifier,
|
|
data,
|
|
{
|
|
...getCreateSourceFileOptions(languageVersion),
|
|
impliedNodeFormat: isCjs
|
|
? ts.ModuleKind.CommonJS
|
|
: ts.ModuleKind.ESNext,
|
|
// no need to parse docs for `deno check`
|
|
jsDocParsingMode: ts.JSDocParsingMode.ParseForTypeErrors,
|
|
},
|
|
false,
|
|
scriptKind,
|
|
);
|
|
sourceFile.moduleName = specifier;
|
|
sourceFile.version = version;
|
|
if (specifier.startsWith(ASSETS_URL_PREFIX)) {
|
|
sourceFile.version = "1";
|
|
}
|
|
sourceFileCache.set(specifier, sourceFile);
|
|
scriptVersionCache.set(specifier, version);
|
|
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(
|
|
data,
|
|
fileName,
|
|
);
|
|
},
|
|
getCurrentDirectory() {
|
|
if (logDebug) {
|
|
debug(`host.getCurrentDirectory()`);
|
|
}
|
|
return CACHE_URL_PREFIX;
|
|
},
|
|
getCanonicalFileName(fileName) {
|
|
return fileName;
|
|
},
|
|
useCaseSensitiveFileNames() {
|
|
return true;
|
|
},
|
|
getNewLine() {
|
|
return "\n";
|
|
},
|
|
resolveTypeReferenceDirectiveReferences(
|
|
typeDirectiveReferences,
|
|
containingFilePath,
|
|
redirectedReference,
|
|
options,
|
|
containingSourceFile,
|
|
_reusedNames,
|
|
) {
|
|
const isCjs =
|
|
containingSourceFile?.impliedNodeFormat === ts.ModuleKind.CommonJS;
|
|
/** @type {Array<ts.ResolvedTypeReferenceDirectiveWithFailedLookupLocations>} */
|
|
const result = typeDirectiveReferences.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 | null] | undefined} */
|
|
const resolved = ops.op_resolve(
|
|
containingFilePath,
|
|
[
|
|
[
|
|
fileReference.resolutionMode == null
|
|
? isCjs
|
|
: fileReference.resolutionMode === ts.ModuleKind.CommonJS,
|
|
fileReference.fileName,
|
|
],
|
|
],
|
|
)?.[0];
|
|
if (resolved && resolved[1]) {
|
|
return {
|
|
resolvedTypeReferenceDirective: {
|
|
primary: true,
|
|
resolvedFileName: resolved[0],
|
|
// todo(dsherret): we should probably be setting this
|
|
isExternalLibraryImport: undefined,
|
|
},
|
|
};
|
|
} else {
|
|
return {
|
|
resolvedTypeReferenceDirective: undefined,
|
|
};
|
|
}
|
|
} else {
|
|
return ts.resolveTypeReferenceDirective(
|
|
fileReference.fileName,
|
|
containingFilePath,
|
|
options,
|
|
host,
|
|
redirectedReference,
|
|
undefined,
|
|
containingSourceFile?.impliedNodeFormat ??
|
|
fileReference.resolutionMode,
|
|
);
|
|
}
|
|
});
|
|
return result;
|
|
},
|
|
resolveModuleNameLiterals(
|
|
moduleLiterals,
|
|
base,
|
|
_redirectedReference,
|
|
compilerOptions,
|
|
containingSourceFile,
|
|
_reusedNames,
|
|
) {
|
|
const specifiers = moduleLiterals.map((literal) => [
|
|
ts.getModeForUsageLocation(
|
|
containingSourceFile,
|
|
literal,
|
|
compilerOptions,
|
|
) === ts.ModuleKind.CommonJS,
|
|
literal.text,
|
|
]);
|
|
if (logDebug) {
|
|
debug(`host.resolveModuleNames()`);
|
|
debug(` base: ${base}`);
|
|
debug(` specifiers: ${specifiers.map((s) => s[1]).join(", ")}`);
|
|
}
|
|
/** @type {Array<[string, ts.Extension | null] | undefined>} */
|
|
const resolved = ops.op_resolve(
|
|
base,
|
|
specifiers,
|
|
);
|
|
if (resolved) {
|
|
/** @type {Array<ts.ResolvedModuleWithFailedLookupLocations>} */
|
|
const result = resolved.map((item) => {
|
|
if (item && item[1]) {
|
|
const [resolvedFileName, extension] = item;
|
|
return {
|
|
resolvedModule: {
|
|
resolvedFileName,
|
|
extension,
|
|
// todo(dsherret): we should probably be setting this
|
|
isExternalLibraryImport: false,
|
|
},
|
|
};
|
|
}
|
|
return {
|
|
resolvedModule: undefined,
|
|
};
|
|
});
|
|
result.length = specifiers.length;
|
|
return result;
|
|
} else {
|
|
return new Array(specifiers.length);
|
|
}
|
|
},
|
|
createHash(data) {
|
|
return ops.op_create_hash(data);
|
|
},
|
|
|
|
// LanguageServiceHost
|
|
getCompilationSettings() {
|
|
if (logDebug) {
|
|
debug("host.getCompilationSettings()");
|
|
}
|
|
return (lastRequestScope
|
|
? languageServiceEntries.byScope.get(lastRequestScope)?.compilerOptions
|
|
: null) ?? languageServiceEntries.unscoped.compilerOptions;
|
|
},
|
|
getScriptFileNames() {
|
|
if (logDebug) {
|
|
debug("host.getScriptFileNames()");
|
|
}
|
|
if (!scriptNamesCache) {
|
|
const { unscoped, byScope } = ops.op_script_names();
|
|
scriptNamesCache = {
|
|
unscoped,
|
|
byScope: new Map(Object.entries(byScope)),
|
|
};
|
|
}
|
|
return (lastRequestScope
|
|
? scriptNamesCache.byScope.get(lastRequestScope)
|
|
: null) ?? scriptNamesCache.unscoped;
|
|
},
|
|
getScriptVersion(specifier) {
|
|
if (logDebug) {
|
|
debug(`host.getScriptVersion("${specifier}")`);
|
|
}
|
|
if (specifier.startsWith(ASSETS_URL_PREFIX)) {
|
|
return "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}")`);
|
|
}
|
|
if (specifier.startsWith(ASSETS_URL_PREFIX)) {
|
|
const sourceFile = this.getSourceFile(
|
|
specifier,
|
|
ts.ScriptTarget.ESNext,
|
|
);
|
|
if (sourceFile) {
|
|
if (!assetScopes.has(specifier)) {
|
|
assetScopes.set(specifier, lastRequestScope);
|
|
}
|
|
// This case only occurs for assets.
|
|
return ts.ScriptSnapshot.fromString(sourceFile.text);
|
|
}
|
|
}
|
|
let scriptSnapshot = scriptSnapshotCache.get(specifier);
|
|
if (scriptSnapshot == undefined) {
|
|
/** @type {{ data: string, version: string, isCjs: boolean }} */
|
|
const fileInfo = ops.op_load(specifier);
|
|
if (!fileInfo) {
|
|
return undefined;
|
|
}
|
|
scriptSnapshot = ts.ScriptSnapshot.fromString(fileInfo.data);
|
|
scriptSnapshot.isCjs = fileInfo.isCjs;
|
|
scriptSnapshotCache.set(specifier, scriptSnapshot);
|
|
scriptVersionCache.set(specifier, fileInfo.version);
|
|
}
|
|
return scriptSnapshot;
|
|
},
|
|
};
|
|
|
|
// @ts-ignore Undocumented function.
|
|
const moduleSpecifierCache = ts.server.createModuleSpecifierCache(host);
|
|
|
|
// @ts-ignore Undocumented function.
|
|
const exportMapCache = ts.createCacheableExportInfoMap(host);
|
|
|
|
// 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,
|
|
"Module_0_was_resolved_to_1_but_allowArbitraryExtensions_is_not_set_6263":
|
|
"Module '{0}' was resolved to '{1}', but importing these modules is not supported.",
|
|
};
|
|
})());
|
|
|
|
/** @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
|
|
* @property {boolean} localOnly
|
|
*/
|
|
|
|
/**
|
|
* 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}`,
|
|
);
|
|
}
|
|
}
|
|
|
|
/** @param {Record<string, unknown>} config */
|
|
function normalizeConfig(config) {
|
|
// the typescript compiler doesn't know about the precompile
|
|
// transform at the moment, so just tell it we're using react-jsx
|
|
if (config.jsx === "precompile") {
|
|
config.jsx = "react-jsx";
|
|
}
|
|
if (config.jsxPrecompileSkipElements) {
|
|
delete config.jsxPrecompileSkipElements;
|
|
}
|
|
return config;
|
|
}
|
|
|
|
/** @param {Record<string, unknown>} config */
|
|
function lspTsConfigToCompilerOptions(config) {
|
|
const normalizedConfig = normalizeConfig(config);
|
|
const { options, errors } = ts
|
|
.convertCompilerOptionsFromJson(normalizedConfig, "");
|
|
Object.assign(options, {
|
|
allowNonTsExtensions: true,
|
|
allowImportingTsExtensions: true,
|
|
module: ts.ModuleKind.NodeNext,
|
|
moduleResolution: ts.ModuleResolutionKind.NodeNext,
|
|
});
|
|
if (errors.length > 0 && logDebug) {
|
|
debug(ts.formatDiagnostics(errors, host));
|
|
}
|
|
return options;
|
|
}
|
|
|
|
/** The API that is called by Rust when executing a request.
|
|
* @param {Request} request
|
|
*/
|
|
function exec({ config, debug: debugFlag, rootNames, localOnly }) {
|
|
setLogDebug(debugFlag, "TS");
|
|
performanceStart();
|
|
|
|
config = normalizeConfig(config);
|
|
|
|
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,
|
|
});
|
|
|
|
let checkFiles = undefined;
|
|
|
|
if (localOnly) {
|
|
const checkFileNames = new Set();
|
|
checkFiles = [];
|
|
|
|
for (const checkName of rootNames) {
|
|
if (checkName.startsWith("http")) {
|
|
continue;
|
|
}
|
|
const sourceFile = program.getSourceFile(checkName);
|
|
if (sourceFile != null) {
|
|
checkFiles.push(sourceFile);
|
|
}
|
|
checkFileNames.add(checkName);
|
|
}
|
|
|
|
// When calling program.getSemanticDiagnostics(...) with a source file, we
|
|
// need to call this code first in order to get it to invalidate cached
|
|
// diagnostics correctly. This is what program.getSemanticDiagnostics()
|
|
// does internally when calling without any arguments.
|
|
while (
|
|
program.getSemanticDiagnosticsOfNextAffectedFile(
|
|
undefined,
|
|
/* ignoreSourceFile */ (s) => !checkFileNames.has(s.fileName),
|
|
)
|
|
) {
|
|
// keep going until there are no more affected files
|
|
}
|
|
}
|
|
|
|
const diagnostics = [
|
|
...program.getConfigFileParsingDiagnostics(),
|
|
...(checkFiles == null
|
|
? program.getSyntacticDiagnostics()
|
|
: ts.sortAndDeduplicateDiagnostics(
|
|
checkFiles.map((s) => program.getSyntacticDiagnostics(s)).flat(),
|
|
)),
|
|
...program.getOptionsDiagnostics(),
|
|
...program.getGlobalDiagnostics(),
|
|
...(checkFiles == null
|
|
? program.getSemanticDiagnostics()
|
|
: ts.sortAndDeduplicateDiagnostics(
|
|
checkFiles.map((s) => program.getSemanticDiagnostics(s)).flat(),
|
|
)),
|
|
].filter(filterMapDiagnostic);
|
|
|
|
// 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: fromTypeScriptDiagnostics(diagnostics),
|
|
stats: performanceEnd(),
|
|
});
|
|
debug("<<< exec stop");
|
|
}
|
|
|
|
/** @param {ts.Diagnostic} diagnostic */
|
|
function filterMapDiagnostic(diagnostic) {
|
|
if (IGNORED_DIAGNOSTICS.includes(diagnostic.code)) {
|
|
return false;
|
|
}
|
|
// make the diagnostic for using an `export =` in an es module a warning
|
|
if (diagnostic.code === 1203) {
|
|
diagnostic.category = ts.DiagnosticCategory.Warning;
|
|
if (typeof diagnostic.messageText === "string") {
|
|
const message =
|
|
" This will start erroring in a future version of Deno 2 " +
|
|
"in order to align with TypeScript.";
|
|
// seems typescript shares objects, so check if it's already been set
|
|
if (!diagnostic.messageText.endsWith(message)) {
|
|
diagnostic.messageText += message;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param {any} e
|
|
* @returns {e is (OperationCanceledError | ts.OperationCanceledException)}
|
|
*/
|
|
function isCancellationError(e) {
|
|
return e instanceof OperationCanceledError ||
|
|
e instanceof ts.OperationCanceledException;
|
|
}
|
|
|
|
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
|
|
* @param {string | null} error
|
|
*/
|
|
// TODO(bartlomieju): this feels needlessly generic, both type checking
|
|
// and language server use it with inefficient serialization. Id is not used
|
|
// anyway...
|
|
function respond(_id, data = null, error = null) {
|
|
if (error) {
|
|
ops.op_respond(
|
|
"error",
|
|
error,
|
|
);
|
|
} else {
|
|
ops.op_respond(JSON.stringify(data), "");
|
|
}
|
|
}
|
|
|
|
/** @typedef {[[string, number][], number, [string, any][]] } PendingChange */
|
|
/**
|
|
* @template T
|
|
* @typedef {T | null} Option<T> */
|
|
|
|
/** @returns {Promise<[number, string, any[], string | null, Option<PendingChange>] | null>} */
|
|
async function pollRequests() {
|
|
return await ops.op_poll_requests();
|
|
}
|
|
|
|
let hasStarted = false;
|
|
|
|
/** @param {boolean} enableDebugLogging */
|
|
async function serverMainLoop(enableDebugLogging) {
|
|
if (hasStarted) {
|
|
throw new Error("The language server has already been initialized.");
|
|
}
|
|
hasStarted = true;
|
|
languageServiceEntries.unscoped = {
|
|
ls: ts.createLanguageService(
|
|
host,
|
|
documentRegistry,
|
|
),
|
|
compilerOptions: lspTsConfigToCompilerOptions({
|
|
"allowJs": true,
|
|
"esModuleInterop": true,
|
|
"experimentalDecorators": false,
|
|
"isolatedModules": true,
|
|
"lib": ["deno.ns", "deno.window", "deno.unstable"],
|
|
"module": "NodeNext",
|
|
"moduleResolution": "NodeNext",
|
|
"moduleDetection": "force",
|
|
"noEmit": true,
|
|
"noImplicitOverride": true,
|
|
"resolveJsonModule": true,
|
|
"strict": true,
|
|
"target": "esnext",
|
|
"useDefineForClassFields": true,
|
|
"jsx": "react",
|
|
"jsxFactory": "React.createElement",
|
|
"jsxFragmentFactory": "React.Fragment",
|
|
}),
|
|
};
|
|
setLogDebug(enableDebugLogging, "TSLS");
|
|
debug("serverInit()");
|
|
|
|
while (true) {
|
|
const request = await pollRequests();
|
|
if (request === null) {
|
|
break;
|
|
}
|
|
try {
|
|
serverRequest(
|
|
request[0],
|
|
request[1],
|
|
request[2],
|
|
request[3],
|
|
request[4],
|
|
);
|
|
} catch (err) {
|
|
error(`Internal error occurred processing request: ${err}`);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {any} error
|
|
* @param {any[] | null} args
|
|
*/
|
|
function formatErrorWithArgs(error, args) {
|
|
let errorString = "stack" in error
|
|
? error.stack.toString()
|
|
: error.toString();
|
|
if (args) {
|
|
errorString += `\nFor request: [${
|
|
args.map((v) => JSON.stringify(v)).join(", ")
|
|
}]`;
|
|
}
|
|
return errorString;
|
|
}
|
|
|
|
/**
|
|
* @param {number} id
|
|
* @param {string} method
|
|
* @param {any[]} args
|
|
* @param {string | null} scope
|
|
* @param {PendingChange | null} maybeChange
|
|
*/
|
|
function serverRequest(id, method, args, scope, maybeChange) {
|
|
if (logDebug) {
|
|
debug(`serverRequest()`, id, method, args, scope, maybeChange);
|
|
}
|
|
if (maybeChange !== null) {
|
|
const changedScripts = maybeChange[0];
|
|
const newProjectVersion = maybeChange[1];
|
|
const newConfigsByScope = maybeChange[2];
|
|
if (newConfigsByScope) {
|
|
isNodeSourceFileCache.clear();
|
|
assetScopes.clear();
|
|
/** @type { typeof languageServiceEntries.byScope } */
|
|
const newByScope = new Map();
|
|
for (const [scope, config] of newConfigsByScope) {
|
|
lastRequestScope = scope;
|
|
const oldEntry = languageServiceEntries.byScope.get(scope);
|
|
const ls = oldEntry
|
|
? oldEntry.ls
|
|
: ts.createLanguageService(host, documentRegistry);
|
|
const compilerOptions = lspTsConfigToCompilerOptions(config);
|
|
newByScope.set(scope, { ls, compilerOptions });
|
|
languageServiceEntries.byScope.delete(scope);
|
|
}
|
|
for (const oldEntry of languageServiceEntries.byScope.values()) {
|
|
oldEntry.ls.dispose();
|
|
}
|
|
languageServiceEntries.byScope = newByScope;
|
|
}
|
|
|
|
projectVersionCache = newProjectVersion;
|
|
|
|
let opened = false;
|
|
let closed = false;
|
|
for (const { 0: script, 1: changeKind } of changedScripts) {
|
|
if (changeKind === ChangeKind.Opened) {
|
|
opened = true;
|
|
} else if (changeKind === ChangeKind.Closed) {
|
|
closed = true;
|
|
}
|
|
scriptVersionCache.delete(script);
|
|
scriptSnapshotCache.delete(script);
|
|
}
|
|
|
|
if (newConfigsByScope || opened || closed) {
|
|
scriptNamesCache = null;
|
|
}
|
|
}
|
|
|
|
// For requests pertaining to an asset document, we make it so that the
|
|
// passed scope is just its own specifier. We map it to an actual scope here
|
|
// based on the first scope that the asset was loaded into.
|
|
if (scope?.startsWith(ASSETS_URL_PREFIX)) {
|
|
scope = assetScopes.get(scope) ?? null;
|
|
}
|
|
lastRequestMethod = method;
|
|
lastRequestScope = scope;
|
|
const ls = (scope ? languageServiceEntries.byScope.get(scope)?.ls : null) ??
|
|
languageServiceEntries.unscoped.ls;
|
|
switch (method) {
|
|
case "$getSupportedCodeFixes": {
|
|
return respond(
|
|
id,
|
|
ts.getSupportedCodeFixes(),
|
|
);
|
|
}
|
|
case "$getAssets": {
|
|
return respond(id, getAssets());
|
|
}
|
|
case "$getDiagnostics": {
|
|
const projectVersion = args[1];
|
|
// there's a possibility that we receive a change notification
|
|
// but the diagnostic server queues a `$getDiagnostics` request
|
|
// with a stale project version. in that case, treat it as cancelled
|
|
// (it's about to be invalidated anyway).
|
|
if (projectVersionCache && projectVersion !== projectVersionCache) {
|
|
return respond(id, {});
|
|
}
|
|
try {
|
|
/** @type {Record<string, any[]>} */
|
|
const diagnosticMap = {};
|
|
for (const specifier of args[0]) {
|
|
diagnosticMap[specifier] = fromTypeScriptDiagnostics([
|
|
...ls.getSemanticDiagnostics(specifier),
|
|
...ls.getSuggestionDiagnostics(specifier),
|
|
...ls.getSyntacticDiagnostics(specifier),
|
|
].filter(filterMapDiagnostic));
|
|
}
|
|
return respond(id, diagnosticMap);
|
|
} catch (e) {
|
|
if (
|
|
!isCancellationError(e)
|
|
) {
|
|
return respond(
|
|
id,
|
|
{},
|
|
formatErrorWithArgs(e, [id, method, args, scope, maybeChange]),
|
|
);
|
|
}
|
|
return respond(id, {});
|
|
}
|
|
}
|
|
default:
|
|
if (typeof ls[method] === "function") {
|
|
// The `getCompletionEntryDetails()` method returns null if the
|
|
// `source` is `null` for whatever reason. It must be `undefined`.
|
|
if (method == "getCompletionEntryDetails") {
|
|
args[4] ??= undefined;
|
|
}
|
|
try {
|
|
return respond(id, ls[method](...args));
|
|
} catch (e) {
|
|
if (!isCancellationError(e)) {
|
|
return respond(
|
|
id,
|
|
null,
|
|
formatErrorWithArgs(e, [id, method, args, scope, maybeChange]),
|
|
);
|
|
}
|
|
return respond(id);
|
|
}
|
|
}
|
|
throw new TypeError(
|
|
// @ts-ignore exhausted case statement sets type to never
|
|
`Invalid request method for request: "${method}" (${id})`,
|
|
);
|
|
}
|
|
}
|
|
|
|
// 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[]; nodeBuiltInModuleNames: string[] }} */
|
|
const { buildSpecifier, libs } = ops.op_build_info();
|
|
|
|
// list of globals that should be kept in Node's globalThis
|
|
ts.deno.setNodeOnlyGlobalNames([
|
|
"__dirname",
|
|
"__filename",
|
|
"Buffer",
|
|
"BufferConstructor",
|
|
"BufferEncoding",
|
|
"clearImmediate",
|
|
"clearInterval",
|
|
"clearTimeout",
|
|
"console",
|
|
"Console",
|
|
"ErrorConstructor",
|
|
"gc",
|
|
"Global",
|
|
"ImportMeta",
|
|
"localStorage",
|
|
"queueMicrotask",
|
|
"RequestInit",
|
|
"ResponseInit",
|
|
"sessionStorage",
|
|
"setImmediate",
|
|
"setInterval",
|
|
"setTimeout",
|
|
]);
|
|
|
|
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,
|
|
),
|
|
`failed to load '${ASSETS_URL_PREFIX}${specifier}'`,
|
|
);
|
|
}
|
|
// 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,
|
|
"lib.d.ts files have errors",
|
|
);
|
|
|
|
// remove this now that we don't need it anymore for warming up tsc
|
|
sourceFileCache.delete(buildSpecifier);
|
|
|
|
// exposes the functions that are called by `tsc::exec()` when type
|
|
// checking TypeScript.
|
|
/** @type {any} */
|
|
const global = globalThis;
|
|
global.exec = exec;
|
|
global.getAssets = getAssets;
|
|
|
|
// exposes the functions that are called when the compiler is used as a
|
|
// language service.
|
|
global.serverMainLoop = serverMainLoop;
|
|
})(this);
|