90 lines
No EOL
4.8 KiB
JavaScript
90 lines
No EOL
4.8 KiB
JavaScript
"use strict";
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.registerAndCreateEsmHooks = void 0;
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const index_1 = require("./index");
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const url_1 = require("url");
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const path_1 = require("path");
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const assert = require("assert");
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const { createResolve } = require('../dist-raw/node-esm-resolve-implementation');
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// Note: On Windows, URLs look like this: file:///D:/dev/@TypeStrong/ts-node-examples/foo.ts
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function registerAndCreateEsmHooks(opts) {
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// Automatically performs registration just like `-r ts-node/register`
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const tsNodeInstance = index_1.register(Object.assign(Object.assign({}, opts), { experimentalEsmLoader: true }));
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// Custom implementation that considers additional file extensions and automatically adds file extensions
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const nodeResolveImplementation = createResolve(Object.assign(Object.assign({}, index_1.getExtensions(tsNodeInstance.config)), { preferTsExts: tsNodeInstance.options.preferTsExts }));
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return { resolve, getFormat, transformSource };
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function isFileUrlOrNodeStyleSpecifier(parsed) {
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// We only understand file:// URLs, but in node, the specifier can be a node-style `./foo` or `foo`
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const { protocol } = parsed;
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return protocol === null || protocol === 'file:';
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}
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function resolve(specifier, context, defaultResolve) {
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return __awaiter(this, void 0, void 0, function* () {
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const defer = () => __awaiter(this, void 0, void 0, function* () {
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const r = yield defaultResolve(specifier, context, defaultResolve);
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return r;
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});
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const parsed = url_1.parse(specifier);
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const { pathname, protocol, hostname } = parsed;
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if (!isFileUrlOrNodeStyleSpecifier(parsed)) {
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return defer();
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}
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if (protocol !== null && protocol !== 'file:') {
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return defer();
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}
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// Malformed file:// URL? We should always see `null` or `''`
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if (hostname) {
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// TODO file://./foo sets `hostname` to `'.'`. Perhaps we should special-case this.
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return defer();
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}
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// pathname is the path to be resolved
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return nodeResolveImplementation.defaultResolve(specifier, context, defaultResolve);
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});
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}
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function getFormat(url, context, defaultGetFormat) {
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return __awaiter(this, void 0, void 0, function* () {
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const defer = (overrideUrl = url) => defaultGetFormat(overrideUrl, context, defaultGetFormat);
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const parsed = url_1.parse(url);
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if (!isFileUrlOrNodeStyleSpecifier(parsed)) {
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return defer();
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}
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const { pathname } = parsed;
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assert(pathname !== null, 'ESM getFormat() hook: URL should never have null pathname');
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const nativePath = url_1.fileURLToPath(url);
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// If file has .ts, .tsx, or .jsx extension, then ask node how it would treat this file if it were .js
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const ext = path_1.extname(nativePath);
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if (ext !== '.js' && !tsNodeInstance.ignored(nativePath)) {
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return defer(url_1.format(url_1.pathToFileURL(nativePath + '.js')));
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}
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return defer();
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});
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}
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function transformSource(source, context, defaultTransformSource) {
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return __awaiter(this, void 0, void 0, function* () {
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const defer = () => defaultTransformSource(source, context, defaultTransformSource);
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const sourceAsString = typeof source === 'string' ? source : source.toString('utf8');
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const { url } = context;
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const parsed = url_1.parse(url);
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if (!isFileUrlOrNodeStyleSpecifier(parsed)) {
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return defer();
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}
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const nativePath = url_1.fileURLToPath(url);
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if (tsNodeInstance.ignored(nativePath)) {
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return defer();
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}
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const emittedJs = tsNodeInstance.compile(sourceAsString, nativePath);
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return { source: emittedJs };
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});
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}
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}
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exports.registerAndCreateEsmHooks = registerAndCreateEsmHooks;
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//# sourceMappingURL=esm.js.map
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