mirror of
https://github.com/denoland/deno.git
synced 2025-08-03 18:38:33 +00:00
Kitson Kelly
GitHub
parent
c8e9b2654e
commit
301d3e4b68
38 changed files with 4878 additions and 47 deletions
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@ -1,5 +1,7 @@
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// Copyright 2018-2020 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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@ -11,6 +13,7 @@
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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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@ -25,7 +28,9 @@ delete Object.prototype.__proto__;
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function debug(...args) {
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if (logDebug) {
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const stringifiedArgs = args.map((arg) => JSON.stringify(arg)).join(" ");
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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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core.print(`DEBUG ${logSource} - ${stringifiedArgs}\n`);
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}
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}
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@ -86,6 +91,7 @@ delete Object.prototype.__proto__;
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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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@ -106,7 +112,7 @@ delete Object.prototype.__proto__;
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* Deno, as they provide misleading or incorrect information. */
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const IGNORED_DIAGNOSTICS = [
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// TS1208: All files must be modules when the '--isolatedModules' flag is
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// provided. We can ignore because we guarantuee that all files are
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// provided. We can ignore because we guarantee that all files are
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// modules.
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1208,
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// TS1375: 'await' expressions are only allowed at the top level of a file
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@ -148,10 +154,72 @@ delete Object.prototype.__proto__;
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target: ts.ScriptTarget.ESNext,
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};
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class ScriptSnapshot {
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/** @type {string} */
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specifier;
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/** @type {string} */
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version;
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/**
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* @param {string} specifier
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* @param {string} version
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*/
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constructor(specifier, version) {
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this.specifier = specifier;
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this.version = version;
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}
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/**
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* @param {number} start
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* @param {number} end
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* @returns {string}
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*/
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getText(start, end) {
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const { specifier, version } = this;
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debug(
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`snapshot.getText(${start}, ${end}) specifier: ${specifier} version: ${version}`,
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);
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return core.jsonOpSync("op_get_text", { specifier, version, start, end });
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}
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/**
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* @returns {number}
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*/
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getLength() {
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const { specifier, version } = this;
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debug(`snapshot.getLength() specifier: ${specifier} version: ${version}`);
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return core.jsonOpSync("op_get_length", { specifier, version });
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}
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/**
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* @param {ScriptSnapshot} oldSnapshot
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* @returns {ts.TextChangeRange | undefined}
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*/
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getChangeRange(oldSnapshot) {
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const { specifier, version } = this;
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const { version: oldVersion } = oldSnapshot;
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const oldLength = oldSnapshot.getLength();
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debug(
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`snapshot.getLength() specifier: ${specifier} oldVersion: ${oldVersion} version: ${version}`,
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);
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return core.jsonOpSync(
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"op_get_change_range",
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{ specifier, oldLength, oldVersion, version },
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);
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}
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dispose() {
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const { specifier, version } = this;
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debug(`snapshot.dispose() specifier: ${specifier} version: ${version}`);
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core.jsonOpSync("op_dispose", { specifier, version });
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}
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}
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/** @type {ts.CompilerOptions} */
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let compilationSettings = {};
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/** @type {ts.LanguageService} */
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let languageService;
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/** An object literal of the incremental compiler host, which provides the
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* specific "bindings" to the Deno environment that tsc needs to work.
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*
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* @type {ts.CompilerHost} */
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* @type {ts.CompilerHost & ts.LanguageServiceHost} */
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const host = {
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fileExists(fileName) {
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debug(`host.fileExists("${fileName}")`);
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@ -231,21 +299,73 @@ delete Object.prototype.__proto__;
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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]>} */
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/** @type {Array<[string, ts.Extension] | undefined>} */
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const resolved = core.jsonOpSync("op_resolve", {
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specifiers,
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base,
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});
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const r = resolved.map(([resolvedFileName, extension]) => ({
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resolvedFileName,
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extension,
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isExternalLibraryImport: false,
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}));
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return r;
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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.jsonOpSync("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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return core.jsonOpSync("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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return core.jsonOpSync("op_script_version", { specifier });
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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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/** @type {string | undefined} */
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const version = core.jsonOpSync("op_script_version", { specifier });
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if (version != null) {
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return new ScriptSnapshot(specifier, version);
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}
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return undefined;
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},
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};
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/** @type {Array<[string, number]>} */
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@ -254,10 +374,13 @@ delete Object.prototype.__proto__;
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function performanceStart() {
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stats.length = 0;
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statsStart = new Date();
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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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* @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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@ -286,7 +409,7 @@ delete Object.prototype.__proto__;
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}
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function performanceEnd() {
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const duration = new Date() - statsStart;
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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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@ -308,7 +431,7 @@ delete Object.prototype.__proto__;
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debug(config);
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const { options, errors: configFileParsingDiagnostics } = ts
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.convertCompilerOptionsFromJson(config, "", "tsconfig.json");
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.convertCompilerOptionsFromJson(config, "");
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// The `allowNonTsExtensions` is a "hidden" compiler option used in VSCode
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// which is not allowed to be passed in JSON, we need it to allow special
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// URLs which Deno supports. So we need to either ignore the diagnostic, or
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@ -340,6 +463,106 @@ delete Object.prototype.__proto__;
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debug("<<< exec stop");
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}
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/**
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* @param {number} id
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* @param {any} data
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*/
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function respond(id, data = null) {
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core.jsonOpSync("op_respond", { id, data });
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}
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/**
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* @param {LanguageServerRequest} request
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*/
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function serverRequest({ id, ...request }) {
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debug(`serverRequest()`, { id, ...request });
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switch (request.method) {
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case "configure": {
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const { options, errors } = ts
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.convertCompilerOptionsFromJson(request.compilerOptions, "");
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Object.assign(options, { allowNonTsExtensions: true });
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if (errors.length) {
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debug(ts.formatDiagnostics(errors, host));
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}
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compilationSettings = options;
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return respond(id, true);
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}
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case "getSemanticDiagnostics": {
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const diagnostics = languageService.getSemanticDiagnostics(
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request.specifier,
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).filter(({ code }) => !IGNORED_DIAGNOSTICS.includes(code));
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return respond(id, fromTypeScriptDiagnostic(diagnostics));
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}
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case "getSuggestionDiagnostics": {
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const diagnostics = languageService.getSuggestionDiagnostics(
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request.specifier,
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).filter(({ code }) => !IGNORED_DIAGNOSTICS.includes(code));
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return respond(id, fromTypeScriptDiagnostic(diagnostics));
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}
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case "getSyntacticDiagnostics": {
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const diagnostics = languageService.getSyntacticDiagnostics(
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request.specifier,
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).filter(({ code }) => !IGNORED_DIAGNOSTICS.includes(code));
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return respond(id, fromTypeScriptDiagnostic(diagnostics));
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}
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case "getQuickInfo": {
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return respond(
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id,
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languageService.getQuickInfoAtPosition(
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request.specifier,
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request.position,
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),
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);
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}
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case "getDocumentHighlights": {
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return respond(
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id,
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languageService.getDocumentHighlights(
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request.specifier,
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request.position,
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request.filesToSearch,
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),
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);
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}
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case "getReferences": {
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return respond(
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id,
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languageService.getReferencesAtPosition(
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request.specifier,
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request.position,
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),
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);
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}
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case "getDefinition": {
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return respond(
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id,
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languageService.getDefinitionAndBoundSpan(
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request.specifier,
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request.position,
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),
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);
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}
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default:
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throw new TypeError(
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// @ts-ignore exhausted case statement sets type to never
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`Invalid request method for request: "${request.method}" (${id})`,
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);
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}
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}
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/** @param {{ debug: boolean; }} init */
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function serverInit({ debug: debugFlag }) {
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if (hasStarted) {
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throw new Error("The language server has already been initialized.");
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}
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hasStarted = true;
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languageService = ts.createLanguageService(host);
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core.ops();
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core.registerErrorClass("Error", Error);
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setLogDebug(debugFlag, "TSLS");
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debug("serverInit()");
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}
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let hasStarted = false;
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/** Startup the runtime environment, setting various flags.
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@ -391,4 +614,9 @@ delete Object.prototype.__proto__;
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// checking TypeScript.
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globalThis.startup = startup;
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globalThis.exec = exec;
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// exposes the functions that are called when the compiler is used as a
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// language service.
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globalThis.serverInit = serverInit;
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globalThis.serverRequest = serverRequest;
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})(this);
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