mirror of
https://github.com/denoland/deno.git
synced 2024-10-31 09:14:20 -04:00
979 lines
29 KiB
JavaScript
979 lines
29 KiB
JavaScript
// Copyright 2018-2022 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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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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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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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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// In the case of the LSP, this is initialized with the assets
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// when snapshotting and never added to or removed after that.
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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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/** @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 = "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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// 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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};
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/** Error thrown on cancellation. */
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class OperationCanceledError extends Error {
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}
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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 core.opSync("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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/** @type {ts.CompilerOptions} */
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let compilationSettings = {};
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/** @type {ts.LanguageService} */
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let languageService;
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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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debug(`host.fileExists("${specifier}")`);
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specifier = normalizedToOriginalMap.get(specifier) ?? specifier;
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return core.opSync("op_exists", { specifier });
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},
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readFile(specifier) {
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debug(`host.readFile("${specifier}")`);
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return core.opSync("op_load", { specifier }).data;
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},
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getCancellationToken() {
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// createLanguageService will call this immediately and cache it
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return new ThrottledCancellationToken();
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},
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getSourceFile(
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specifier,
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languageVersion,
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_onError,
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_shouldCreateNewSourceFile,
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) {
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debug(
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`host.getSourceFile("${specifier}", ${
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ts.ScriptTarget[
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isCreateSourceFileOptions(languageVersion)
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? languageVersion.languageVersion
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: languageVersion
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]
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})`,
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);
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// Needs the original specifier
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specifier = normalizedToOriginalMap.get(specifier) ?? specifier;
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let sourceFile = sourceFileCache.get(specifier);
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if (sourceFile) {
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return sourceFile;
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}
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/** @type {{ data: string; scriptKind: ts.ScriptKind; version: string; }} */
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const { data, scriptKind, version } = core.opSync(
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"op_load",
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{ specifier },
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);
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assert(
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data != null,
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`"data" is unexpectedly null for "${specifier}".`,
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);
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sourceFile = ts.createSourceFile(
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specifier,
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data,
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languageVersion,
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false,
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scriptKind,
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);
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sourceFile.moduleName = specifier;
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sourceFile.version = version;
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sourceFileCache.set(specifier, sourceFile);
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scriptVersionCache.set(specifier, version);
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return sourceFile;
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},
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getDefaultLibFileName() {
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return `${ASSETS}/lib.esnext.d.ts`;
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},
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getDefaultLibLocation() {
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return ASSETS;
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},
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writeFile(fileName, data, _writeByteOrderMark, _onError, _sourceFiles) {
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debug(`host.writeFile("${fileName}")`);
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return core.opSync(
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"op_emit",
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{ fileName, data },
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);
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},
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getCurrentDirectory() {
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debug(`host.getCurrentDirectory()`);
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return cwd ?? core.opSync("op_cwd", null);
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},
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getCanonicalFileName(fileName) {
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return fileName;
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},
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useCaseSensitiveFileNames() {
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return true;
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},
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getNewLine() {
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return "\n";
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},
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resolveModuleNames(specifiers, base) {
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debug(`host.resolveModuleNames()`);
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debug(` base: ${base}`);
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debug(` specifiers: ${specifiers.join(", ")}`);
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/** @type {Array<[string, ts.Extension] | undefined>} */
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const resolved = core.opSync("op_resolve", {
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specifiers,
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base,
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});
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if (resolved) {
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const result = resolved.map((item) => {
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if (item) {
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const [resolvedFileName, extension] = item;
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return {
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resolvedFileName,
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extension,
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isExternalLibraryImport: false,
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};
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}
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return undefined;
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});
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result.length = specifiers.length;
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return result;
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} else {
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return new Array(specifiers.length);
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}
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},
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createHash(data) {
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return core.opSync("op_create_hash", { data }).hash;
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},
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// LanguageServiceHost
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getCompilationSettings() {
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debug("host.getCompilationSettings()");
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return compilationSettings;
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},
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getScriptFileNames() {
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debug("host.getScriptFileNames()");
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// tsc requests the script file names multiple times even though it can't
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// possibly have changed, so we will memoize it on a per request basis.
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if (scriptFileNamesCache) {
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return scriptFileNamesCache;
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}
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return scriptFileNamesCache = core.opSync("op_script_names", undefined);
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},
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getScriptVersion(specifier) {
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debug(`host.getScriptVersion("${specifier}")`);
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const sourceFile = sourceFileCache.get(specifier);
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if (sourceFile) {
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return sourceFile.version ?? "1";
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}
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// tsc requests the script version multiple times even though it can't
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// possibly have changed, so we will memoize it on a per request basis.
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if (scriptVersionCache.has(specifier)) {
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return scriptVersionCache.get(specifier);
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}
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const scriptVersion = core.opSync("op_script_version", { specifier });
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scriptVersionCache.set(specifier, scriptVersion);
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return scriptVersion;
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},
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getScriptSnapshot(specifier) {
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debug(`host.getScriptSnapshot("${specifier}")`);
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const sourceFile = sourceFileCache.get(specifier);
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if (sourceFile) {
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return {
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getText(start, end) {
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return sourceFile.text.substring(start, end);
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},
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getLength() {
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return sourceFile.text.length;
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},
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getChangeRange() {
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return undefined;
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},
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};
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}
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const fileInfo = core.opSync(
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"op_load",
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{ specifier },
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);
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if (fileInfo) {
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scriptVersionCache.set(specifier, fileInfo.version);
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return ts.ScriptSnapshot.fromString(fileInfo.data);
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} else {
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return undefined;
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}
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},
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};
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/** @type {Array<[string, number]>} */
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const stats = [];
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let statsStart = 0;
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function performanceStart() {
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stats.length = 0;
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statsStart = Date.now();
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ts.performance.enable();
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}
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|
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/**
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* @param {{ program: ts.Program | ts.EmitAndSemanticDiagnosticsBuilderProgram, fileCount?: number }} options
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*/
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function performanceProgram({ program, fileCount }) {
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if (program) {
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if ("getProgram" in program) {
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program = program.getProgram();
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}
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stats.push(["Files", program.getSourceFiles().length]);
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stats.push(["Nodes", program.getNodeCount()]);
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stats.push(["Identifiers", program.getIdentifierCount()]);
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stats.push(["Symbols", program.getSymbolCount()]);
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stats.push(["Types", program.getTypeCount()]);
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stats.push(["Instantiations", program.getInstantiationCount()]);
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} else if (fileCount != null) {
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stats.push(["Files", fileCount]);
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}
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const programTime = ts.performance.getDuration("Program");
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const bindTime = ts.performance.getDuration("Bind");
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const checkTime = ts.performance.getDuration("Check");
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const emitTime = ts.performance.getDuration("Emit");
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stats.push(["Parse time", programTime]);
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stats.push(["Bind time", bindTime]);
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stats.push(["Check time", checkTime]);
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stats.push(["Emit time", emitTime]);
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stats.push(
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["Total TS time", programTime + bindTime + checkTime + emitTime],
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);
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}
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function performanceEnd() {
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const duration = Date.now() - statsStart;
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stats.push(["Compile time", duration]);
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return stats;
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}
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|
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/**
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|
* @typedef {object} Request
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|
* @property {Record<string, any>} config
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* @property {boolean} debug
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* @property {string[]} rootNames
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*/
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|
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/**
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* Checks the normalized version of the root name and stores it in
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* `normalizedToOriginalMap`. If the normalized specifier is already
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* registered for the different root name, it throws an AssertionError.
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*
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* @param {string} rootName
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*/
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function checkNormalizedPath(rootName) {
|
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const normalized = ts.normalizePath(rootName);
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const originalRootName = normalizedToOriginalMap.get(normalized);
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if (typeof originalRootName === "undefined") {
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normalizedToOriginalMap.set(normalized, rootName);
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|
} else if (originalRootName !== rootName) {
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|
// The different root names are normalizd to the same path.
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// This will cause problem when looking up the source for each.
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|
throw new AssertionError(
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`The different names for the same normalized specifier are specified: normalized=${normalized}, rootNames=${originalRootName},${rootName}`,
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);
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}
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}
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|
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/** The API that is called by Rust when executing a request.
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|
* @param {Request} request
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|
*/
|
|
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();
|
|
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(({ code }) => !IGNORED_DIAGNOSTICS.includes(code));
|
|
|
|
// emit the tsbuildinfo file
|
|
// @ts-ignore: emitBuildInfo is not exposed (https://github.com/microsoft/TypeScript/issues/49871)
|
|
program.emitBuildInfo(host.writeFile);
|
|
|
|
performanceProgram({ program });
|
|
|
|
core.opSync("op_respond", {
|
|
diagnostics: fromTypeScriptDiagnostic(diagnostics),
|
|
stats: performanceEnd(),
|
|
});
|
|
debug("<<< exec stop");
|
|
}
|
|
|
|
/**
|
|
* @param {number} id
|
|
* @param {any} data
|
|
*/
|
|
function respond(id, data = null) {
|
|
core.opSync("op_respond", { id, data });
|
|
}
|
|
|
|
/**
|
|
* @param {LanguageServerRequest} request
|
|
*/
|
|
function serverRequest({ id, ...request }) {
|
|
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": {
|
|
const assets = [];
|
|
for (const sourceFile of sourceFileCache.values()) {
|
|
if (sourceFile.fileName.startsWith(ASSETS)) {
|
|
assets.push({
|
|
specifier: sourceFile.fileName,
|
|
text: sourceFile.text,
|
|
});
|
|
}
|
|
}
|
|
return respond(id, assets);
|
|
}
|
|
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": {
|
|
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,
|
|
),
|
|
);
|
|
}
|
|
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);
|
|
setLogDebug(debugFlag, "TSLS");
|
|
debug("serverInit()");
|
|
}
|
|
|
|
function serverRestart() {
|
|
languageService = ts.createLanguageService(host);
|
|
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 } = core.opSync("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(`${ASSETS}${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,
|
|
});
|
|
ts.getPreEmitDiagnostics(TS_SNAPSHOT_PROGRAM);
|
|
|
|
// exposes the two functions that are called by `tsc::exec()` when type
|
|
// checking TypeScript.
|
|
globalThis.startup = startup;
|
|
globalThis.exec = exec;
|
|
|
|
// exposes the functions that are called when the compiler is used as a
|
|
// language service.
|
|
globalThis.serverInit = serverInit;
|
|
globalThis.serverRequest = serverRequest;
|
|
})(this);
|