mirror of
https://github.com/denoland/deno.git
synced 2024-11-14 16:33:45 -05:00
75bb9dbdfc
This commit provides a "system_loader_es5.js" bundle loader which will be added to the bundle when the target is < ES2017, which is the minimum target syntax required for "system_loader.js". Supports #5913 (via Deno.bundle()) with a couple caveats: * Allowing "deno bundle" to take a different target is not supported, as we specifically ignore "target" when passed in a TypeScript config file. This is because deno bundle is really intended to generate bundles that work in Deno. It is an unintentional side effect that some bundles are loadable in browsers. * While a target of "es3" will be accepted, the module loader will still only be compatible with ES5 or later. Realistically no one should be expecting bundles generated by Deno to be used on IE8 and prior, and there is just too much "baggage" to support that at this point.
1426 lines
40 KiB
TypeScript
1426 lines
40 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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get options(): ts.CompilerOptions {
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return this.#options;
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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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|
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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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|
const SYSTEM_LOADER_ES5 = getAsset("system_loader_es5.js");
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function buildLocalSourceFileCache(
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sourceFileMap: Record<string, SourceFileMapEntry>
|
|
): void {
|
|
for (const entry of Object.values(sourceFileMap)) {
|
|
assert(entry.sourceCode.length > 0);
|
|
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];
|
|
assert(importedFile);
|
|
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,
|
|
state.host.options.target ?? ts.ScriptTarget.ESNext
|
|
);
|
|
};
|
|
}
|
|
|
|
// 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[],
|
|
target: ts.ScriptTarget
|
|
): 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+$/i, "");
|
|
// If one of the modules requires support for top-level-await, TypeScript will
|
|
// emit the execute function as an async function. When this is the case we
|
|
// need to bubble up the TLA to the instantiation, otherwise we instantiate
|
|
// synchronously.
|
|
const hasTla = data.match(/execute:\sasync\sfunction\s/);
|
|
let instantiate: string;
|
|
if (rootExports && rootExports.length) {
|
|
instantiate = hasTla
|
|
? `const __exp = await __instantiate("${rootName}", true);\n`
|
|
: `const __exp = __instantiate("${rootName}", false);\n`;
|
|
for (const rootExport of rootExports) {
|
|
if (rootExport === "default") {
|
|
instantiate += `export default __exp["${rootExport}"];\n`;
|
|
} else {
|
|
instantiate += `export const ${rootExport} = __exp["${rootExport}"];\n`;
|
|
}
|
|
}
|
|
} else {
|
|
instantiate = hasTla
|
|
? `await __instantiate("${rootName}", true);\n`
|
|
: `__instantiate("${rootName}", false);\n`;
|
|
}
|
|
const es5Bundle =
|
|
target === ts.ScriptTarget.ES3 ||
|
|
target === ts.ScriptTarget.ES5 ||
|
|
target === ts.ScriptTarget.ES2015 ||
|
|
target === ts.ScriptTarget.ES2016
|
|
? true
|
|
: false;
|
|
return `${
|
|
es5Bundle ? SYSTEM_LOADER_ES5 : SYSTEM_LOADER
|
|
}\n${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;
|
|
allowJs: boolean;
|
|
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 {
|
|
allowJs,
|
|
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 (!bundle) {
|
|
host.mergeOptions({ allowJs });
|
|
}
|
|
|
|
// 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();
|
|
// If `checkJs` is off we still might be compiling entry point JavaScript file
|
|
// (if it has `.ts` imports), but it won't be emitted. In that case we skip
|
|
// assertion.
|
|
if (!bundle) {
|
|
if (options.checkJs) {
|
|
assert(
|
|
emitResult.emitSkipped === false,
|
|
"Unexpected skip of the emit."
|
|
);
|
|
}
|
|
} else {
|
|
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,
|
|
},
|
|
});
|