mirror of
https://github.com/denoland/deno.git
synced 2024-11-15 16:43:44 -05:00
f9e45114b9
This commit fixes a bug introduced in #5029 that caused bad handling of redirects during module analysis. Also ensured that duplicate modules are not downloaded.
1385 lines
38 KiB
TypeScript
1385 lines
38 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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// TODO(ry) Combine this implementation with //deno_typescript/compiler_main.js
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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 compile TS/WASM to JS.
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//
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// It provides a single functions that should be called by Rust:
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// - `bootstrapTsCompilerRuntime`
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// This functions must be called when creating isolate
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// to properly setup runtime.
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// NOTE: this import has side effects!
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import "./ts_global.d.ts";
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import { bold, cyan, yellow } from "./colors.ts";
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import { CompilerOptions } from "./compiler_options.ts";
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import { Diagnostic, DiagnosticItem } from "./diagnostics.ts";
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import { fromTypeScriptDiagnostic } from "./diagnostics_util.ts";
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import { TranspileOnlyResult } from "./ops/runtime_compiler.ts";
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import { bootstrapWorkerRuntime } from "./runtime_worker.ts";
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import { assert, log, notImplemented } from "./util.ts";
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import { core } from "./core.ts";
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// We really don't want to depend on JSON dispatch during snapshotting, so
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// this op exchanges strings with Rust as raw byte arrays.
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function getAsset(name: string): string {
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const opId = core.ops()["op_fetch_asset"];
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const sourceCodeBytes = core.dispatch(opId, core.encode(name));
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return core.decode(sourceCodeBytes!);
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}
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// Constants used by `normalizeString` and `resolvePath`
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const CHAR_DOT = 46; /* . */
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const CHAR_FORWARD_SLASH = 47; /* / */
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const ASSETS = "$asset$";
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const OUT_DIR = "$deno$";
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// TODO(Bartlomieju): this check should be done in Rust
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const IGNORED_COMPILER_OPTIONS: readonly string[] = [
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"allowSyntheticDefaultImports",
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"baseUrl",
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"build",
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"composite",
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"declaration",
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"declarationDir",
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"declarationMap",
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"diagnostics",
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"downlevelIteration",
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"emitBOM",
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"emitDeclarationOnly",
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"esModuleInterop",
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"extendedDiagnostics",
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"forceConsistentCasingInFileNames",
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"help",
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"importHelpers",
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"incremental",
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"inlineSourceMap",
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"inlineSources",
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"init",
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"isolatedModules",
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"listEmittedFiles",
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"listFiles",
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"mapRoot",
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"maxNodeModuleJsDepth",
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"module",
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"moduleResolution",
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"newLine",
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"noEmit",
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"noEmitHelpers",
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"noEmitOnError",
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"noLib",
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"noResolve",
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"out",
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"outDir",
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"outFile",
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"paths",
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"preserveSymlinks",
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"preserveWatchOutput",
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"pretty",
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"rootDir",
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"rootDirs",
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"showConfig",
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"skipDefaultLibCheck",
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"skipLibCheck",
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"sourceMap",
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"sourceRoot",
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"stripInternal",
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"target",
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"traceResolution",
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"tsBuildInfoFile",
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"types",
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"typeRoots",
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"version",
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"watch",
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];
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const DEFAULT_BUNDLER_OPTIONS: ts.CompilerOptions = {
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allowJs: true,
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inlineSourceMap: false,
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module: ts.ModuleKind.System,
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outDir: undefined,
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outFile: `${OUT_DIR}/bundle.js`,
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// disabled until we have effective way to modify source maps
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sourceMap: false,
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};
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const DEFAULT_COMPILE_OPTIONS: ts.CompilerOptions = {
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allowJs: false,
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allowNonTsExtensions: true,
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checkJs: false,
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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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outDir: OUT_DIR,
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resolveJsonModule: true,
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sourceMap: true,
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strict: true,
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stripComments: true,
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target: ts.ScriptTarget.ESNext,
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};
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const DEFAULT_RUNTIME_COMPILE_OPTIONS: ts.CompilerOptions = {
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outDir: undefined,
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};
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const DEFAULT_RUNTIME_TRANSPILE_OPTIONS: ts.CompilerOptions = {
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esModuleInterop: true,
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module: ts.ModuleKind.ESNext,
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sourceMap: true,
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scriptComments: true,
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target: ts.ScriptTarget.ESNext,
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};
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enum CompilerHostTarget {
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Main = "main",
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Runtime = "runtime",
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Worker = "worker",
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}
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interface CompilerHostOptions {
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bundle?: boolean;
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target: CompilerHostTarget;
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unstable?: boolean;
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writeFile: WriteFileCallback;
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}
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interface ConfigureResponse {
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ignoredOptions?: string[];
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diagnostics?: ts.Diagnostic[];
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}
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// Warning! The values in this enum are duplicated in `cli/msg.rs`
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// Update carefully!
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enum MediaType {
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JavaScript = 0,
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JSX = 1,
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TypeScript = 2,
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TSX = 3,
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Json = 4,
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Wasm = 5,
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Unknown = 6,
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}
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interface SourceFileJson {
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url: string;
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filename: string;
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mediaType: MediaType;
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sourceCode: string;
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}
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function getExtension(fileName: string, mediaType: MediaType): ts.Extension {
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switch (mediaType) {
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case MediaType.JavaScript:
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return ts.Extension.Js;
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case MediaType.JSX:
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return ts.Extension.Jsx;
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case MediaType.TypeScript:
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return fileName.endsWith(".d.ts") ? ts.Extension.Dts : ts.Extension.Ts;
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case MediaType.TSX:
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return ts.Extension.Tsx;
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case MediaType.Wasm:
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// Custom marker for Wasm type.
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return ts.Extension.Js;
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case MediaType.Unknown:
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default:
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throw TypeError(
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`Cannot resolve extension for "${fileName}" with mediaType "${MediaType[mediaType]}".`
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);
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}
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}
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/** A global cache of module source files that have been loaded.
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* This cache will be rewritten to be populated on compiler startup
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* with files provided from Rust in request message.
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*/
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const SOURCE_FILE_CACHE: Map<string, SourceFile> = new Map();
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/** A map of maps which cache resolved specifier for each import in a file.
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* This cache is used so `resolveModuleNames` ops is called as few times
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* as possible.
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*
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* First map's key is "referrer" URL ("file://a/b/c/mod.ts")
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* Second map's key is "raw" import specifier ("./foo.ts")
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* Second map's value is resolved import URL ("file:///a/b/c/foo.ts")
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*/
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const RESOLVED_SPECIFIER_CACHE: Map<string, Map<string, string>> = new Map();
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class SourceFile {
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extension!: ts.Extension;
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filename!: string;
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mediaType!: MediaType;
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processed = false;
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sourceCode?: string;
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tsSourceFile?: ts.SourceFile;
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url!: string;
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constructor(json: SourceFileJson) {
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Object.assign(this, json);
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this.extension = getExtension(this.url, this.mediaType);
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}
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static addToCache(json: SourceFileJson): SourceFile {
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if (SOURCE_FILE_CACHE.has(json.url)) {
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throw new TypeError("SourceFile already exists");
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}
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const sf = new SourceFile(json);
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SOURCE_FILE_CACHE.set(sf.url, sf);
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return sf;
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}
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static getCached(url: string): SourceFile | undefined {
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return SOURCE_FILE_CACHE.get(url);
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}
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static cacheResolvedUrl(
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resolvedUrl: string,
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rawModuleSpecifier: string,
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containingFile?: string
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): void {
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containingFile = containingFile || "";
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let innerCache = RESOLVED_SPECIFIER_CACHE.get(containingFile);
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if (!innerCache) {
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innerCache = new Map();
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RESOLVED_SPECIFIER_CACHE.set(containingFile, innerCache);
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}
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innerCache.set(rawModuleSpecifier, resolvedUrl);
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}
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static getResolvedUrl(
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moduleSpecifier: string,
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containingFile: string
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): string | undefined {
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const containingCache = RESOLVED_SPECIFIER_CACHE.get(containingFile);
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if (containingCache) {
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const resolvedUrl = containingCache.get(moduleSpecifier);
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return resolvedUrl;
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}
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return undefined;
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}
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}
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function getAssetInternal(filename: string): SourceFile {
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const lastSegment = filename.split("/").pop()!;
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const url = ts.libMap.has(lastSegment)
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? ts.libMap.get(lastSegment)!
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: lastSegment;
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const sourceFile = SourceFile.getCached(url);
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if (sourceFile) {
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return sourceFile;
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}
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const name = url.includes(".") ? url : `${url}.d.ts`;
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const sourceCode = getAsset(name);
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return SourceFile.addToCache({
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url,
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filename: `${ASSETS}/${name}`,
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mediaType: MediaType.TypeScript,
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sourceCode,
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});
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}
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class Host implements ts.CompilerHost {
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readonly #options = DEFAULT_COMPILE_OPTIONS;
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#target: CompilerHostTarget;
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#writeFile: WriteFileCallback;
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/* Deno specific APIs */
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constructor({
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bundle = false,
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target,
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unstable,
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writeFile,
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}: CompilerHostOptions) {
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this.#target = target;
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this.#writeFile = writeFile;
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if (bundle) {
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// options we need to change when we are generating a bundle
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Object.assign(this.#options, DEFAULT_BUNDLER_OPTIONS);
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}
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if (unstable) {
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this.#options.lib = [
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target === CompilerHostTarget.Worker
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? "lib.deno.worker.d.ts"
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: "lib.deno.window.d.ts",
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"lib.deno.unstable.d.ts",
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];
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}
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}
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configure(
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cwd: string,
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path: string,
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configurationText: string
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): ConfigureResponse {
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log("compiler::host.configure", path);
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assert(configurationText);
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const { config, error } = ts.parseConfigFileTextToJson(
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path,
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configurationText
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);
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if (error) {
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return { diagnostics: [error] };
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}
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const { options, errors } = ts.convertCompilerOptionsFromJson(
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config.compilerOptions,
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cwd
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);
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const ignoredOptions: string[] = [];
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for (const key of Object.keys(options)) {
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if (
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IGNORED_COMPILER_OPTIONS.includes(key) &&
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(!(key in this.#options) || options[key] !== this.#options[key])
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) {
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ignoredOptions.push(key);
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delete options[key];
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}
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}
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Object.assign(this.#options, options);
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return {
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ignoredOptions: ignoredOptions.length ? ignoredOptions : undefined,
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diagnostics: errors.length ? errors : undefined,
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};
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}
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mergeOptions(...options: ts.CompilerOptions[]): ts.CompilerOptions {
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Object.assign(this.#options, ...options);
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return Object.assign({}, this.#options);
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}
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/* TypeScript CompilerHost APIs */
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fileExists(_fileName: string): boolean {
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return notImplemented();
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}
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getCanonicalFileName(fileName: string): string {
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return fileName;
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}
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getCompilationSettings(): ts.CompilerOptions {
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log("compiler::host.getCompilationSettings()");
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return this.#options;
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}
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getCurrentDirectory(): string {
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return "";
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}
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getDefaultLibFileName(_options: ts.CompilerOptions): string {
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log("compiler::host.getDefaultLibFileName()");
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switch (this.#target) {
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case CompilerHostTarget.Main:
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case CompilerHostTarget.Runtime:
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return `${ASSETS}/lib.deno.window.d.ts`;
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case CompilerHostTarget.Worker:
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return `${ASSETS}/lib.deno.worker.d.ts`;
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}
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}
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getNewLine(): string {
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return "\n";
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}
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getSourceFile(
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fileName: string,
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languageVersion: ts.ScriptTarget,
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onError?: (message: string) => void,
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shouldCreateNewSourceFile?: boolean
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): ts.SourceFile | undefined {
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log("compiler::host.getSourceFile", fileName);
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try {
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assert(!shouldCreateNewSourceFile);
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const sourceFile = fileName.startsWith(ASSETS)
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? getAssetInternal(fileName)
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: SourceFile.getCached(fileName);
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assert(sourceFile != null);
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if (!sourceFile.tsSourceFile) {
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assert(sourceFile.sourceCode != null);
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const tsSourceFileName = fileName.startsWith(ASSETS)
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? sourceFile.filename
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: fileName;
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sourceFile.tsSourceFile = ts.createSourceFile(
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tsSourceFileName,
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sourceFile.sourceCode,
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languageVersion
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);
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delete sourceFile.sourceCode;
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}
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return sourceFile.tsSourceFile;
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} catch (e) {
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if (onError) {
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onError(String(e));
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} else {
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throw e;
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}
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return undefined;
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}
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}
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readFile(_fileName: string): string | undefined {
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return notImplemented();
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}
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resolveModuleNames(
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moduleNames: string[],
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containingFile: string
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): Array<ts.ResolvedModuleFull | undefined> {
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log("compiler::host.resolveModuleNames", {
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moduleNames,
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containingFile,
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});
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return moduleNames.map((specifier) => {
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const maybeUrl = SourceFile.getResolvedUrl(specifier, containingFile);
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log("compiler::host.resolveModuleNames maybeUrl", {
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specifier,
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containingFile,
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maybeUrl,
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sf: SourceFile.getCached(maybeUrl!),
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});
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let sourceFile: SourceFile | undefined = undefined;
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if (specifier.startsWith(ASSETS)) {
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sourceFile = getAssetInternal(specifier);
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} else if (typeof maybeUrl !== "undefined") {
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sourceFile = SourceFile.getCached(maybeUrl);
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}
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if (!sourceFile) {
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return undefined;
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}
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return {
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resolvedFileName: sourceFile.url,
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isExternalLibraryImport: specifier.startsWith(ASSETS),
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extension: sourceFile.extension,
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};
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});
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}
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useCaseSensitiveFileNames(): boolean {
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return true;
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}
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writeFile(
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fileName: string,
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data: string,
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_writeByteOrderMark: boolean,
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_onError?: (message: string) => void,
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sourceFiles?: readonly ts.SourceFile[]
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): void {
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log("compiler::host.writeFile", fileName);
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this.#writeFile(fileName, data, sourceFiles);
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}
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}
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// NOTE: target doesn't really matter here,
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// this is in fact a mock host created just to
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// load all type definitions and snapshot them.
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const SNAPSHOT_HOST = new Host({
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target: CompilerHostTarget.Main,
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writeFile(): void {},
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});
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const SNAPSHOT_COMPILER_OPTIONS = SNAPSHOT_HOST.getCompilationSettings();
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// This is a hacky way of adding our libs to the libs available in TypeScript()
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// as these are internal APIs of TypeScript which maintain valid libs
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ts.libs.push("deno.ns", "deno.window", "deno.worker", "deno.shared_globals");
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ts.libMap.set("deno.ns", "lib.deno.ns.d.ts");
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ts.libMap.set("deno.window", "lib.deno.window.d.ts");
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ts.libMap.set("deno.worker", "lib.deno.worker.d.ts");
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ts.libMap.set("deno.shared_globals", "lib.deno.shared_globals.d.ts");
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ts.libMap.set("deno.unstable", "lib.deno.unstable.d.ts");
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// this pre-populates the cache at snapshot time of our library files, so they
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// are available in the future when needed.
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SNAPSHOT_HOST.getSourceFile(
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`${ASSETS}/lib.deno.ns.d.ts`,
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ts.ScriptTarget.ESNext
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);
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SNAPSHOT_HOST.getSourceFile(
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`${ASSETS}/lib.deno.window.d.ts`,
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ts.ScriptTarget.ESNext
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);
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SNAPSHOT_HOST.getSourceFile(
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`${ASSETS}/lib.deno.worker.d.ts`,
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ts.ScriptTarget.ESNext
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);
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SNAPSHOT_HOST.getSourceFile(
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`${ASSETS}/lib.deno.shared_globals.d.ts`,
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ts.ScriptTarget.ESNext
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);
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SNAPSHOT_HOST.getSourceFile(
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`${ASSETS}/lib.deno.unstable.d.ts`,
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ts.ScriptTarget.ESNext
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);
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// We never use this program; it's only created
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// during snapshotting to hydrate and populate
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// source file cache with lib declaration files.
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const _TS_SNAPSHOT_PROGRAM = ts.createProgram({
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rootNames: [`${ASSETS}/bootstrap.ts`],
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options: SNAPSHOT_COMPILER_OPTIONS,
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host: SNAPSHOT_HOST,
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});
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// This function is called only during snapshotting process
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const SYSTEM_LOADER = getAsset("system_loader.js");
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function buildLocalSourceFileCache(
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sourceFileMap: Record<string, SourceFileMapEntry>
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): void {
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for (const entry of Object.values(sourceFileMap)) {
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assert(entry.sourceCode.length > 0);
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SourceFile.addToCache({
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url: entry.url,
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filename: entry.url,
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mediaType: entry.mediaType,
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sourceCode: entry.sourceCode,
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});
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for (const importDesc of entry.imports) {
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let mappedUrl = importDesc.resolvedSpecifier;
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const importedFile = sourceFileMap[importDesc.resolvedSpecifier];
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assert(importedFile);
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const isJsOrJsx =
|
|
importedFile.mediaType === MediaType.JavaScript ||
|
|
importedFile.mediaType === MediaType.JSX;
|
|
// If JS or JSX perform substitution for types if available
|
|
if (isJsOrJsx) {
|
|
if (importedFile.typeHeaders.length > 0) {
|
|
const typeHeaders = importedFile.typeHeaders[0];
|
|
mappedUrl = typeHeaders.resolvedSpecifier;
|
|
} else if (importDesc.resolvedTypeDirective) {
|
|
mappedUrl = importDesc.resolvedTypeDirective;
|
|
} else if (importedFile.typesDirectives.length > 0) {
|
|
const typeDirective = importedFile.typesDirectives[0];
|
|
mappedUrl = typeDirective.resolvedSpecifier;
|
|
}
|
|
}
|
|
|
|
mappedUrl = mappedUrl.replace("memory://", "");
|
|
SourceFile.cacheResolvedUrl(mappedUrl, importDesc.specifier, entry.url);
|
|
}
|
|
for (const fileRef of entry.referencedFiles) {
|
|
SourceFile.cacheResolvedUrl(
|
|
fileRef.resolvedSpecifier.replace("memory://", ""),
|
|
fileRef.specifier,
|
|
entry.url
|
|
);
|
|
}
|
|
for (const fileRef of entry.libDirectives) {
|
|
SourceFile.cacheResolvedUrl(
|
|
fileRef.resolvedSpecifier.replace("memory://", ""),
|
|
fileRef.specifier,
|
|
entry.url
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
function buildSourceFileCache(
|
|
sourceFileMap: Record<string, SourceFileMapEntry>
|
|
): void {
|
|
for (const entry of Object.values(sourceFileMap)) {
|
|
SourceFile.addToCache({
|
|
url: entry.url,
|
|
filename: entry.url,
|
|
mediaType: entry.mediaType,
|
|
sourceCode: entry.sourceCode,
|
|
});
|
|
|
|
for (const importDesc of entry.imports) {
|
|
let mappedUrl = importDesc.resolvedSpecifier;
|
|
const importedFile = sourceFileMap[importDesc.resolvedSpecifier];
|
|
// IMPORTANT: due to HTTP redirects we might end up in situation
|
|
// where URL points to a file with completely different URL.
|
|
// In that case we take value of `redirect` field and cache
|
|
// resolved specifier pointing to the value of the redirect.
|
|
// It's not very elegant solution and should be rethinked.
|
|
assert(importedFile);
|
|
if (importedFile.redirect) {
|
|
mappedUrl = importedFile.redirect;
|
|
}
|
|
const isJsOrJsx =
|
|
importedFile.mediaType === MediaType.JavaScript ||
|
|
importedFile.mediaType === MediaType.JSX;
|
|
// If JS or JSX perform substitution for types if available
|
|
if (isJsOrJsx) {
|
|
if (importedFile.typeHeaders.length > 0) {
|
|
const typeHeaders = importedFile.typeHeaders[0];
|
|
mappedUrl = typeHeaders.resolvedSpecifier;
|
|
} else if (importDesc.resolvedTypeDirective) {
|
|
mappedUrl = importDesc.resolvedTypeDirective;
|
|
} else if (importedFile.typesDirectives.length > 0) {
|
|
const typeDirective = importedFile.typesDirectives[0];
|
|
mappedUrl = typeDirective.resolvedSpecifier;
|
|
}
|
|
}
|
|
|
|
SourceFile.cacheResolvedUrl(mappedUrl, importDesc.specifier, entry.url);
|
|
}
|
|
for (const fileRef of entry.referencedFiles) {
|
|
SourceFile.cacheResolvedUrl(
|
|
fileRef.resolvedSpecifier,
|
|
fileRef.specifier,
|
|
entry.url
|
|
);
|
|
}
|
|
for (const fileRef of entry.libDirectives) {
|
|
SourceFile.cacheResolvedUrl(
|
|
fileRef.resolvedSpecifier,
|
|
fileRef.specifier,
|
|
entry.url
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
interface EmittedSource {
|
|
// original filename
|
|
filename: string;
|
|
// compiled contents
|
|
contents: string;
|
|
}
|
|
|
|
type WriteFileCallback = (
|
|
fileName: string,
|
|
data: string,
|
|
sourceFiles?: readonly ts.SourceFile[]
|
|
) => void;
|
|
|
|
interface WriteFileState {
|
|
type: CompilerRequestType;
|
|
bundle?: boolean;
|
|
bundleOutput?: string;
|
|
host?: Host;
|
|
rootNames: string[];
|
|
emitMap?: Record<string, EmittedSource>;
|
|
sources?: Record<string, string>;
|
|
}
|
|
|
|
// Warning! The values in this enum are duplicated in `cli/msg.rs`
|
|
// Update carefully!
|
|
enum CompilerRequestType {
|
|
Compile = 0,
|
|
RuntimeCompile = 1,
|
|
RuntimeTranspile = 2,
|
|
}
|
|
|
|
// TODO(bartlomieju): probably could be defined inline?
|
|
function createBundleWriteFile(state: WriteFileState): WriteFileCallback {
|
|
return function writeFile(
|
|
_fileName: string,
|
|
data: string,
|
|
sourceFiles?: readonly ts.SourceFile[]
|
|
): void {
|
|
assert(sourceFiles != null);
|
|
assert(state.host);
|
|
assert(state.emitMap);
|
|
assert(state.bundle);
|
|
// we only support single root names for bundles
|
|
assert(state.rootNames.length === 1);
|
|
state.bundleOutput = buildBundle(state.rootNames[0], data, sourceFiles);
|
|
};
|
|
}
|
|
|
|
// TODO(bartlomieju): probably could be defined inline?
|
|
function createCompileWriteFile(state: WriteFileState): WriteFileCallback {
|
|
return function writeFile(
|
|
fileName: string,
|
|
data: string,
|
|
sourceFiles?: readonly ts.SourceFile[]
|
|
): void {
|
|
assert(sourceFiles != null);
|
|
assert(state.host);
|
|
assert(state.emitMap);
|
|
assert(!state.bundle);
|
|
assert(sourceFiles.length === 1);
|
|
state.emitMap[fileName] = {
|
|
filename: sourceFiles[0].fileName,
|
|
contents: data,
|
|
};
|
|
};
|
|
}
|
|
|
|
interface ConvertCompilerOptionsResult {
|
|
files?: string[];
|
|
options: ts.CompilerOptions;
|
|
}
|
|
|
|
function convertCompilerOptions(str: string): ConvertCompilerOptionsResult {
|
|
const options: CompilerOptions = JSON.parse(str);
|
|
const out: Record<string, unknown> = {};
|
|
const keys = Object.keys(options) as Array<keyof CompilerOptions>;
|
|
const files: string[] = [];
|
|
for (const key of keys) {
|
|
switch (key) {
|
|
case "jsx":
|
|
const value = options[key];
|
|
if (value === "preserve") {
|
|
out[key] = ts.JsxEmit.Preserve;
|
|
} else if (value === "react") {
|
|
out[key] = ts.JsxEmit.React;
|
|
} else {
|
|
out[key] = ts.JsxEmit.ReactNative;
|
|
}
|
|
break;
|
|
case "module":
|
|
switch (options[key]) {
|
|
case "amd":
|
|
out[key] = ts.ModuleKind.AMD;
|
|
break;
|
|
case "commonjs":
|
|
out[key] = ts.ModuleKind.CommonJS;
|
|
break;
|
|
case "es2015":
|
|
case "es6":
|
|
out[key] = ts.ModuleKind.ES2015;
|
|
break;
|
|
case "esnext":
|
|
out[key] = ts.ModuleKind.ESNext;
|
|
break;
|
|
case "none":
|
|
out[key] = ts.ModuleKind.None;
|
|
break;
|
|
case "system":
|
|
out[key] = ts.ModuleKind.System;
|
|
break;
|
|
case "umd":
|
|
out[key] = ts.ModuleKind.UMD;
|
|
break;
|
|
default:
|
|
throw new TypeError("Unexpected module type");
|
|
}
|
|
break;
|
|
case "target":
|
|
switch (options[key]) {
|
|
case "es3":
|
|
out[key] = ts.ScriptTarget.ES3;
|
|
break;
|
|
case "es5":
|
|
out[key] = ts.ScriptTarget.ES5;
|
|
break;
|
|
case "es6":
|
|
case "es2015":
|
|
out[key] = ts.ScriptTarget.ES2015;
|
|
break;
|
|
case "es2016":
|
|
out[key] = ts.ScriptTarget.ES2016;
|
|
break;
|
|
case "es2017":
|
|
out[key] = ts.ScriptTarget.ES2017;
|
|
break;
|
|
case "es2018":
|
|
out[key] = ts.ScriptTarget.ES2018;
|
|
break;
|
|
case "es2019":
|
|
out[key] = ts.ScriptTarget.ES2019;
|
|
break;
|
|
case "es2020":
|
|
out[key] = ts.ScriptTarget.ES2020;
|
|
break;
|
|
case "esnext":
|
|
out[key] = ts.ScriptTarget.ESNext;
|
|
break;
|
|
default:
|
|
throw new TypeError("Unexpected emit target.");
|
|
}
|
|
break;
|
|
case "types":
|
|
const types = options[key];
|
|
assert(types);
|
|
files.push(...types);
|
|
break;
|
|
default:
|
|
out[key] = options[key];
|
|
}
|
|
}
|
|
return {
|
|
options: out as ts.CompilerOptions,
|
|
files: files.length ? files : undefined,
|
|
};
|
|
}
|
|
|
|
const ignoredDiagnostics = [
|
|
// TS2306: File 'file:///Users/rld/src/deno/cli/tests/subdir/amd_like.js' is
|
|
// not a module.
|
|
2306,
|
|
// TS1375: 'await' expressions are only allowed at the top level of a file
|
|
// when that file is a module, but this file has no imports or exports.
|
|
// Consider adding an empty 'export {}' to make this file a module.
|
|
1375,
|
|
// TS1103: 'for-await-of' statement is only allowed within an async function
|
|
// or async generator.
|
|
1103,
|
|
// TS2691: An import path cannot end with a '.ts' extension. Consider
|
|
// importing 'bad-module' instead.
|
|
2691,
|
|
// TS5009: Cannot find the common subdirectory path for the input files.
|
|
5009,
|
|
// TS5055: Cannot write file
|
|
// 'http://localhost:4545/cli/tests/subdir/mt_application_x_javascript.j4.js'
|
|
// because it would overwrite input file.
|
|
5055,
|
|
// TypeScript is overly opinionated that only CommonJS modules kinds can
|
|
// support JSON imports. Allegedly this was fixed in
|
|
// Microsoft/TypeScript#26825 but that doesn't seem to be working here,
|
|
// so we will ignore complaints about this compiler setting.
|
|
5070,
|
|
// TS7016: Could not find a declaration file for module '...'. '...'
|
|
// implicitly has an 'any' type. This is due to `allowJs` being off by
|
|
// default but importing of a JavaScript module.
|
|
7016,
|
|
];
|
|
|
|
// TODO(Bartlomieju): this check should be done in Rust; there should be no
|
|
// console.log here
|
|
function processConfigureResponse(
|
|
configResult: ConfigureResponse,
|
|
configPath: string
|
|
): ts.Diagnostic[] | undefined {
|
|
const { ignoredOptions, diagnostics } = configResult;
|
|
if (ignoredOptions) {
|
|
console.warn(
|
|
yellow(`Unsupported compiler options in "${configPath}"\n`) +
|
|
cyan(` The following options were ignored:\n`) +
|
|
` ${ignoredOptions.map((value): string => bold(value)).join(", ")}`
|
|
);
|
|
}
|
|
return diagnostics;
|
|
}
|
|
|
|
function normalizeString(path: string): string {
|
|
let res = "";
|
|
let lastSegmentLength = 0;
|
|
let lastSlash = -1;
|
|
let dots = 0;
|
|
let code: number;
|
|
for (let i = 0, len = path.length; i <= len; ++i) {
|
|
if (i < len) code = path.charCodeAt(i);
|
|
else if (code! === CHAR_FORWARD_SLASH) break;
|
|
else code = CHAR_FORWARD_SLASH;
|
|
|
|
if (code === CHAR_FORWARD_SLASH) {
|
|
if (lastSlash === i - 1 || dots === 1) {
|
|
// NOOP
|
|
} else if (lastSlash !== i - 1 && dots === 2) {
|
|
if (
|
|
res.length < 2 ||
|
|
lastSegmentLength !== 2 ||
|
|
res.charCodeAt(res.length - 1) !== CHAR_DOT ||
|
|
res.charCodeAt(res.length - 2) !== CHAR_DOT
|
|
) {
|
|
if (res.length > 2) {
|
|
const lastSlashIndex = res.lastIndexOf("/");
|
|
if (lastSlashIndex === -1) {
|
|
res = "";
|
|
lastSegmentLength = 0;
|
|
} else {
|
|
res = res.slice(0, lastSlashIndex);
|
|
lastSegmentLength = res.length - 1 - res.lastIndexOf("/");
|
|
}
|
|
lastSlash = i;
|
|
dots = 0;
|
|
continue;
|
|
} else if (res.length === 2 || res.length === 1) {
|
|
res = "";
|
|
lastSegmentLength = 0;
|
|
lastSlash = i;
|
|
dots = 0;
|
|
continue;
|
|
}
|
|
}
|
|
} else {
|
|
if (res.length > 0) res += "/" + path.slice(lastSlash + 1, i);
|
|
else res = path.slice(lastSlash + 1, i);
|
|
lastSegmentLength = i - lastSlash - 1;
|
|
}
|
|
lastSlash = i;
|
|
dots = 0;
|
|
} else if (code === CHAR_DOT && dots !== -1) {
|
|
++dots;
|
|
} else {
|
|
dots = -1;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
function commonPath(paths: string[], sep = "/"): string {
|
|
const [first = "", ...remaining] = paths;
|
|
if (first === "" || remaining.length === 0) {
|
|
return first.substring(0, first.lastIndexOf(sep) + 1);
|
|
}
|
|
const parts = first.split(sep);
|
|
|
|
let endOfPrefix = parts.length;
|
|
for (const path of remaining) {
|
|
const compare = path.split(sep);
|
|
for (let i = 0; i < endOfPrefix; i++) {
|
|
if (compare[i] !== parts[i]) {
|
|
endOfPrefix = i;
|
|
}
|
|
}
|
|
|
|
if (endOfPrefix === 0) {
|
|
return "";
|
|
}
|
|
}
|
|
const prefix = parts.slice(0, endOfPrefix).join(sep);
|
|
return prefix.endsWith(sep) ? prefix : `${prefix}${sep}`;
|
|
}
|
|
|
|
let rootExports: string[] | undefined;
|
|
|
|
function normalizeUrl(rootName: string): string {
|
|
const match = /^(\S+:\/{2,3})(.+)$/.exec(rootName);
|
|
if (match) {
|
|
const [, protocol, path] = match;
|
|
return `${protocol}${normalizeString(path)}`;
|
|
} else {
|
|
return rootName;
|
|
}
|
|
}
|
|
|
|
function buildBundle(
|
|
rootName: string,
|
|
data: string,
|
|
sourceFiles: readonly ts.SourceFile[]
|
|
): string {
|
|
// when outputting to AMD and a single outfile, TypeScript makes up the module
|
|
// specifiers which are used to define the modules, and doesn't expose them
|
|
// publicly, so we have to try to replicate
|
|
const sources = sourceFiles.map((sf) => sf.fileName);
|
|
const sharedPath = commonPath(sources);
|
|
rootName = normalizeUrl(rootName)
|
|
.replace(sharedPath, "")
|
|
.replace(/\.\w+$/i, "");
|
|
// If one of the modules requires support for top-level-await, TypeScript will
|
|
// emit the execute function as an async function. When this is the case we
|
|
// need to bubble up the TLA to the instantiation, otherwise we instantiate
|
|
// synchronously.
|
|
const hasTla = data.match(/execute:\sasync\sfunction\s/);
|
|
let instantiate: string;
|
|
if (rootExports && rootExports.length) {
|
|
instantiate = hasTla
|
|
? `const __exp = await __instantiateAsync("${rootName}");\n`
|
|
: `const __exp = __instantiate("${rootName}");\n`;
|
|
for (const rootExport of rootExports) {
|
|
if (rootExport === "default") {
|
|
instantiate += `export default __exp["${rootExport}"];\n`;
|
|
} else {
|
|
instantiate += `export const ${rootExport} = __exp["${rootExport}"];\n`;
|
|
}
|
|
}
|
|
} else {
|
|
instantiate = hasTla
|
|
? `await __instantiateAsync("${rootName}");\n`
|
|
: `__instantiate("${rootName}");\n`;
|
|
}
|
|
return `${SYSTEM_LOADER}\n${data}\n${instantiate}`;
|
|
}
|
|
|
|
function setRootExports(program: ts.Program, rootModule: string): void {
|
|
// get a reference to the type checker, this will let us find symbols from
|
|
// the AST.
|
|
const checker = program.getTypeChecker();
|
|
// get a reference to the main source file for the bundle
|
|
const mainSourceFile = program.getSourceFile(rootModule);
|
|
assert(mainSourceFile);
|
|
// retrieve the internal TypeScript symbol for this AST node
|
|
const mainSymbol = checker.getSymbolAtLocation(mainSourceFile);
|
|
if (!mainSymbol) {
|
|
return;
|
|
}
|
|
rootExports = checker
|
|
.getExportsOfModule(mainSymbol)
|
|
// .getExportsOfModule includes type only symbols which are exported from
|
|
// the module, so we need to try to filter those out. While not critical
|
|
// someone looking at the bundle would think there is runtime code behind
|
|
// that when there isn't. There appears to be no clean way of figuring that
|
|
// out, so inspecting SymbolFlags that might be present that are type only
|
|
.filter(
|
|
(sym) =>
|
|
sym.flags & ts.SymbolFlags.Class ||
|
|
!(
|
|
sym.flags & ts.SymbolFlags.Interface ||
|
|
sym.flags & ts.SymbolFlags.TypeLiteral ||
|
|
sym.flags & ts.SymbolFlags.Signature ||
|
|
sym.flags & ts.SymbolFlags.TypeParameter ||
|
|
sym.flags & ts.SymbolFlags.TypeAlias ||
|
|
sym.flags & ts.SymbolFlags.Type ||
|
|
sym.flags & ts.SymbolFlags.Namespace ||
|
|
sym.flags & ts.SymbolFlags.InterfaceExcludes ||
|
|
sym.flags & ts.SymbolFlags.TypeParameterExcludes ||
|
|
sym.flags & ts.SymbolFlags.TypeAliasExcludes
|
|
)
|
|
)
|
|
.map((sym) => sym.getName());
|
|
}
|
|
|
|
interface ImportDescriptor {
|
|
specifier: string;
|
|
resolvedSpecifier: string;
|
|
typeDirective?: string;
|
|
resolvedTypeDirective?: string;
|
|
}
|
|
|
|
interface ReferenceDescriptor {
|
|
specifier: string;
|
|
resolvedSpecifier: string;
|
|
}
|
|
|
|
interface SourceFileMapEntry {
|
|
// fully resolved URL
|
|
url: string;
|
|
sourceCode: string;
|
|
mediaType: MediaType;
|
|
redirect?: string;
|
|
imports: ImportDescriptor[];
|
|
referencedFiles: ReferenceDescriptor[];
|
|
libDirectives: ReferenceDescriptor[];
|
|
typesDirectives: ReferenceDescriptor[];
|
|
typeHeaders: ReferenceDescriptor[];
|
|
}
|
|
|
|
interface CompilerRequestCompile {
|
|
type: CompilerRequestType.Compile;
|
|
target: CompilerHostTarget;
|
|
rootNames: string[];
|
|
configPath?: string;
|
|
config?: string;
|
|
unstable: boolean;
|
|
bundle: boolean;
|
|
cwd: string;
|
|
// key value is fully resolved URL
|
|
sourceFileMap: Record<string, SourceFileMapEntry>;
|
|
}
|
|
|
|
interface CompilerRequestRuntimeCompile {
|
|
type: CompilerRequestType.RuntimeCompile;
|
|
target: CompilerHostTarget;
|
|
rootNames: string[];
|
|
sourceFileMap: Record<string, SourceFileMapEntry>;
|
|
unstable?: boolean;
|
|
bundle?: boolean;
|
|
options?: string;
|
|
}
|
|
|
|
interface CompilerRequestRuntimeTranspile {
|
|
type: CompilerRequestType.RuntimeTranspile;
|
|
sources: Record<string, string>;
|
|
options?: string;
|
|
}
|
|
|
|
type CompilerRequest =
|
|
| CompilerRequestCompile
|
|
| CompilerRequestRuntimeCompile
|
|
| CompilerRequestRuntimeTranspile;
|
|
|
|
interface CompileResult {
|
|
emitMap?: Record<string, EmittedSource>;
|
|
bundleOutput?: string;
|
|
diagnostics: Diagnostic;
|
|
}
|
|
|
|
interface RuntimeCompileResult {
|
|
emitMap: Record<string, EmittedSource>;
|
|
diagnostics: DiagnosticItem[];
|
|
}
|
|
|
|
interface RuntimeBundleResult {
|
|
output: string;
|
|
diagnostics: DiagnosticItem[];
|
|
}
|
|
|
|
function compile(request: CompilerRequestCompile): CompileResult {
|
|
const {
|
|
bundle,
|
|
config,
|
|
configPath,
|
|
rootNames,
|
|
target,
|
|
unstable,
|
|
cwd,
|
|
sourceFileMap,
|
|
} = request;
|
|
log(">>> compile start", {
|
|
rootNames,
|
|
type: CompilerRequestType[request.type],
|
|
});
|
|
|
|
// When a programme is emitted, TypeScript will call `writeFile` with
|
|
// each file that needs to be emitted. The Deno compiler host delegates
|
|
// this, to make it easier to perform the right actions, which vary
|
|
// based a lot on the request.
|
|
const state: WriteFileState = {
|
|
type: request.type,
|
|
emitMap: {},
|
|
bundle,
|
|
host: undefined,
|
|
rootNames,
|
|
};
|
|
let writeFile: WriteFileCallback;
|
|
if (bundle) {
|
|
writeFile = createBundleWriteFile(state);
|
|
} else {
|
|
writeFile = createCompileWriteFile(state);
|
|
}
|
|
const host = (state.host = new Host({
|
|
bundle,
|
|
target,
|
|
writeFile,
|
|
unstable,
|
|
}));
|
|
let diagnostics: readonly ts.Diagnostic[] = [];
|
|
|
|
// if there is a configuration supplied, we need to parse that
|
|
if (config && config.length && configPath) {
|
|
const configResult = host.configure(cwd, configPath, config);
|
|
diagnostics = processConfigureResponse(configResult, configPath) || [];
|
|
}
|
|
|
|
buildSourceFileCache(sourceFileMap);
|
|
// if there was a configuration and no diagnostics with it, we will continue
|
|
// to generate the program and possibly emit it.
|
|
if (diagnostics.length === 0) {
|
|
const options = host.getCompilationSettings();
|
|
const program = ts.createProgram({
|
|
rootNames,
|
|
options,
|
|
host,
|
|
});
|
|
|
|
diagnostics = ts
|
|
.getPreEmitDiagnostics(program)
|
|
.filter(({ code }) => !ignoredDiagnostics.includes(code));
|
|
|
|
// We will only proceed with the emit if there are no diagnostics.
|
|
if (diagnostics && diagnostics.length === 0) {
|
|
if (bundle) {
|
|
// we only support a single root module when bundling
|
|
assert(rootNames.length === 1);
|
|
setRootExports(program, rootNames[0]);
|
|
}
|
|
const emitResult = program.emit();
|
|
assert(emitResult.emitSkipped === false, "Unexpected skip of the emit.");
|
|
// emitResult.diagnostics is `readonly` in TS3.5+ and can't be assigned
|
|
// without casting.
|
|
diagnostics = emitResult.diagnostics;
|
|
}
|
|
}
|
|
|
|
let bundleOutput = undefined;
|
|
|
|
if (diagnostics && diagnostics.length === 0 && bundle) {
|
|
assert(state.bundleOutput);
|
|
bundleOutput = state.bundleOutput;
|
|
}
|
|
|
|
assert(state.emitMap);
|
|
const result: CompileResult = {
|
|
emitMap: state.emitMap,
|
|
bundleOutput,
|
|
diagnostics: fromTypeScriptDiagnostic(diagnostics),
|
|
};
|
|
|
|
log("<<< compile end", {
|
|
rootNames,
|
|
type: CompilerRequestType[request.type],
|
|
});
|
|
|
|
return result;
|
|
}
|
|
|
|
function runtimeCompile(
|
|
request: CompilerRequestRuntimeCompile
|
|
): RuntimeCompileResult | RuntimeBundleResult {
|
|
const {
|
|
bundle,
|
|
options,
|
|
rootNames,
|
|
target,
|
|
unstable,
|
|
sourceFileMap,
|
|
} = request;
|
|
|
|
log(">>> runtime compile start", {
|
|
rootNames,
|
|
bundle,
|
|
});
|
|
|
|
// if there are options, convert them into TypeScript compiler options,
|
|
// and resolve any external file references
|
|
let convertedOptions: ts.CompilerOptions | undefined;
|
|
if (options) {
|
|
const result = convertCompilerOptions(options);
|
|
convertedOptions = result.options;
|
|
}
|
|
|
|
buildLocalSourceFileCache(sourceFileMap);
|
|
|
|
const state: WriteFileState = {
|
|
type: request.type,
|
|
bundle,
|
|
host: undefined,
|
|
rootNames,
|
|
emitMap: {},
|
|
bundleOutput: undefined,
|
|
};
|
|
let writeFile: WriteFileCallback;
|
|
if (bundle) {
|
|
writeFile = createBundleWriteFile(state);
|
|
} else {
|
|
writeFile = createCompileWriteFile(state);
|
|
}
|
|
|
|
const host = (state.host = new Host({
|
|
bundle,
|
|
target,
|
|
writeFile,
|
|
}));
|
|
const compilerOptions = [DEFAULT_RUNTIME_COMPILE_OPTIONS];
|
|
if (convertedOptions) {
|
|
compilerOptions.push(convertedOptions);
|
|
}
|
|
if (unstable) {
|
|
compilerOptions.push({
|
|
lib: [
|
|
"deno.unstable",
|
|
...((convertedOptions && convertedOptions.lib) || ["deno.window"]),
|
|
],
|
|
});
|
|
}
|
|
if (bundle) {
|
|
compilerOptions.push(DEFAULT_BUNDLER_OPTIONS);
|
|
}
|
|
host.mergeOptions(...compilerOptions);
|
|
|
|
const program = ts.createProgram({
|
|
rootNames,
|
|
options: host.getCompilationSettings(),
|
|
host,
|
|
});
|
|
|
|
if (bundle) {
|
|
setRootExports(program, rootNames[0]);
|
|
}
|
|
|
|
const diagnostics = ts
|
|
.getPreEmitDiagnostics(program)
|
|
.filter(({ code }) => !ignoredDiagnostics.includes(code));
|
|
|
|
const emitResult = program.emit();
|
|
|
|
assert(emitResult.emitSkipped === false, "Unexpected skip of the emit.");
|
|
|
|
assert(state.emitMap);
|
|
log("<<< runtime compile finish", {
|
|
rootNames,
|
|
bundle,
|
|
emitMap: Object.keys(state.emitMap),
|
|
});
|
|
|
|
const maybeDiagnostics = diagnostics.length
|
|
? fromTypeScriptDiagnostic(diagnostics).items
|
|
: [];
|
|
|
|
if (bundle) {
|
|
return {
|
|
diagnostics: maybeDiagnostics,
|
|
output: state.bundleOutput,
|
|
} as RuntimeBundleResult;
|
|
} else {
|
|
return {
|
|
diagnostics: maybeDiagnostics,
|
|
emitMap: state.emitMap,
|
|
} as RuntimeCompileResult;
|
|
}
|
|
}
|
|
|
|
function runtimeTranspile(
|
|
request: CompilerRequestRuntimeTranspile
|
|
): Promise<Record<string, TranspileOnlyResult>> {
|
|
const result: Record<string, TranspileOnlyResult> = {};
|
|
const { sources, options } = request;
|
|
const compilerOptions = options
|
|
? Object.assign(
|
|
{},
|
|
DEFAULT_RUNTIME_TRANSPILE_OPTIONS,
|
|
convertCompilerOptions(options).options
|
|
)
|
|
: DEFAULT_RUNTIME_TRANSPILE_OPTIONS;
|
|
|
|
for (const [fileName, inputText] of Object.entries(sources)) {
|
|
const { outputText: source, sourceMapText: map } = ts.transpileModule(
|
|
inputText,
|
|
{
|
|
fileName,
|
|
compilerOptions,
|
|
}
|
|
);
|
|
result[fileName] = { source, map };
|
|
}
|
|
return Promise.resolve(result);
|
|
}
|
|
|
|
async function tsCompilerOnMessage({
|
|
data: request,
|
|
}: {
|
|
data: CompilerRequest;
|
|
}): Promise<void> {
|
|
switch (request.type) {
|
|
case CompilerRequestType.Compile: {
|
|
const result = compile(request as CompilerRequestCompile);
|
|
globalThis.postMessage(result);
|
|
break;
|
|
}
|
|
case CompilerRequestType.RuntimeCompile: {
|
|
const result = runtimeCompile(request as CompilerRequestRuntimeCompile);
|
|
globalThis.postMessage(result);
|
|
break;
|
|
}
|
|
case CompilerRequestType.RuntimeTranspile: {
|
|
const result = await runtimeTranspile(
|
|
request as CompilerRequestRuntimeTranspile
|
|
);
|
|
globalThis.postMessage(result);
|
|
break;
|
|
}
|
|
default:
|
|
log(
|
|
`!!! unhandled CompilerRequestType: ${
|
|
(request as CompilerRequest).type
|
|
} (${CompilerRequestType[(request as CompilerRequest).type]})`
|
|
);
|
|
}
|
|
// Shutdown after single request
|
|
globalThis.close();
|
|
}
|
|
|
|
function bootstrapTsCompilerRuntime(): void {
|
|
bootstrapWorkerRuntime("TS", false);
|
|
globalThis.onmessage = tsCompilerOnMessage;
|
|
}
|
|
|
|
// Removes the `__proto__` for security reasons. This intentionally makes
|
|
// Deno non compliant with ECMA-262 Annex B.2.2.1
|
|
//
|
|
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
|
delete (Object.prototype as any).__proto__;
|
|
|
|
Object.defineProperties(globalThis, {
|
|
bootstrap: {
|
|
value: {
|
|
...globalThis.bootstrap,
|
|
tsCompilerRuntime: bootstrapTsCompilerRuntime,
|
|
},
|
|
configurable: true,
|
|
writable: true,
|
|
},
|
|
});
|