babel-jest
Version:
Jest plugin to use babel for transformation.
288 lines (278 loc) • 10.5 kB
JavaScript
/*!
* /**
* * Copyright (c) Meta Platforms, Inc. and affiliates.
* *
* * This source code is licensed under the MIT license found in the
* * LICENSE file in the root directory of this source tree.
* * /
*/
/******/ (() => { // webpackBootstrap
/******/ "use strict";
/******/ var __webpack_modules__ = ({
/***/ "./src/loadBabelConfig.ts":
/***/ ((__unused_webpack_module, exports) => {
Object.defineProperty(exports, "__esModule", ({
value: true
}));
Object.defineProperty(exports, "loadPartialConfig", ({
enumerable: true,
get: function () {
return _core().loadPartialConfig;
}
}));
Object.defineProperty(exports, "loadPartialConfigAsync", ({
enumerable: true,
get: function () {
return _core().loadPartialConfigAsync;
}
}));
function _core() {
const data = require("@babel/core");
_core = function () {
return data;
};
return data;
}
/***/ })
/******/ });
/************************************************************************/
/******/ // The module cache
/******/ var __webpack_module_cache__ = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/ // Check if module is in cache
/******/ var cachedModule = __webpack_module_cache__[moduleId];
/******/ if (cachedModule !== undefined) {
/******/ return cachedModule.exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = __webpack_module_cache__[moduleId] = {
/******/ // no module.id needed
/******/ // no module.loaded needed
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/************************************************************************/
var __webpack_exports__ = {};
// This entry needs to be wrapped in an IIFE because it uses a non-standard name for the exports (exports).
(() => {
var exports = __webpack_exports__;
Object.defineProperty(exports, "__esModule", ({
value: true
}));
exports["default"] = exports.createTransformer = void 0;
function _crypto() {
const data = require("crypto");
_crypto = function () {
return data;
};
return data;
}
function path() {
const data = _interopRequireWildcard(require("path"));
path = function () {
return data;
};
return data;
}
function _core() {
const data = require("@babel/core");
_core = function () {
return data;
};
return data;
}
function _chalk() {
const data = _interopRequireDefault(require("chalk"));
_chalk = function () {
return data;
};
return data;
}
function fs() {
const data = _interopRequireWildcard(require("graceful-fs"));
fs = function () {
return data;
};
return data;
}
function _slash() {
const data = _interopRequireDefault(require("slash"));
_slash = function () {
return data;
};
return data;
}
var _loadBabelConfig = __webpack_require__("./src/loadBabelConfig.ts");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
const THIS_FILE = fs().readFileSync(__filename);
const jestPresetPath = require.resolve('babel-preset-jest');
const babelIstanbulPlugin = require.resolve('babel-plugin-istanbul');
function assertLoadedBabelConfig(babelConfig, cwd, filename) {
if (!babelConfig) {
throw new Error(`babel-jest: Babel ignores ${_chalk().default.bold((0, _slash().default)(path().relative(cwd, filename)))} - make sure to include the file in Jest's ${_chalk().default.bold('transformIgnorePatterns')} as well.`);
}
}
function addIstanbulInstrumentation(babelOptions, transformOptions) {
if (transformOptions.instrument) {
const copiedBabelOptions = {
...babelOptions
};
copiedBabelOptions.auxiliaryCommentBefore = ' istanbul ignore next ';
// Copied from jest-runtime transform.js
copiedBabelOptions.plugins = [...(copiedBabelOptions.plugins ?? []), [babelIstanbulPlugin, {
// files outside `cwd` will not be instrumented
cwd: transformOptions.config.cwd,
exclude: []
}]];
return copiedBabelOptions;
}
return babelOptions;
}
function getCacheKeyFromConfig(sourceText, sourcePath, babelOptions, transformOptions) {
const {
config,
configString,
instrument
} = transformOptions;
const configPath = [babelOptions.config ?? '', babelOptions.babelrc ?? ''];
return (0, _crypto().createHash)('sha1').update(THIS_FILE).update('\0', 'utf8').update(JSON.stringify(babelOptions.options)).update('\0', 'utf8').update(sourceText).update('\0', 'utf8').update(path().relative(config.rootDir, sourcePath)).update('\0', 'utf8').update(configString).update('\0', 'utf8').update(configPath.join('')).update('\0', 'utf8').update(instrument ? 'instrument' : '').update('\0', 'utf8').update("production" ?? 0).update('\0', 'utf8').update(process.env.BABEL_ENV ?? '').update('\0', 'utf8').update(process.version).digest('hex').slice(0, 32);
}
function loadBabelConfig(cwd, filename, transformOptions) {
const babelConfig = (0, _loadBabelConfig.loadPartialConfig)(transformOptions);
assertLoadedBabelConfig(babelConfig, cwd, filename);
return babelConfig;
}
async function loadBabelConfigAsync(cwd, filename, transformOptions) {
const babelConfig = await (0, _loadBabelConfig.loadPartialConfigAsync)(transformOptions);
assertLoadedBabelConfig(babelConfig, cwd, filename);
return babelConfig;
}
function loadBabelOptions(cwd, filename, transformOptions, jestTransformOptions) {
const {
options
} = loadBabelConfig(cwd, filename, transformOptions);
return addIstanbulInstrumentation(options, jestTransformOptions);
}
async function loadBabelOptionsAsync(cwd, filename, transformOptions, jestTransformOptions) {
const {
options
} = await loadBabelConfigAsync(cwd, filename, transformOptions);
return addIstanbulInstrumentation(options, jestTransformOptions);
}
const createTransformer = transformerConfig => {
const {
excludeJestPreset,
...inputOptions
} = transformerConfig ?? {};
const options = {
...inputOptions,
caller: {
name: 'babel-jest',
supportsDynamicImport: false,
supportsExportNamespaceFrom: false,
supportsStaticESM: false,
supportsTopLevelAwait: false,
...inputOptions.caller
},
compact: false,
plugins: inputOptions.plugins ?? [],
presets: [...(inputOptions.presets ?? []), ...(excludeJestPreset === true ? [] : [jestPresetPath])],
sourceMaps: 'both'
};
function mergeBabelTransformOptions(filename, transformOptions) {
const {
cwd,
rootDir
} = transformOptions.config;
// `cwd` and `root` first to allow incoming options to override it
return {
cwd,
root: rootDir,
...options,
caller: {
...options.caller,
supportsDynamicImport: transformOptions.supportsDynamicImport ?? options.caller.supportsDynamicImport,
supportsExportNamespaceFrom: transformOptions.supportsExportNamespaceFrom ?? options.caller.supportsExportNamespaceFrom,
supportsStaticESM: transformOptions.supportsStaticESM ?? options.caller.supportsStaticESM,
supportsTopLevelAwait: transformOptions.supportsTopLevelAwait ?? options.caller.supportsTopLevelAwait
},
filename
};
}
return {
canInstrument: true,
getCacheKey(sourceText, sourcePath, transformOptions) {
const babelOptions = loadBabelConfig(transformOptions.config.cwd, sourcePath, mergeBabelTransformOptions(sourcePath, transformOptions));
return getCacheKeyFromConfig(sourceText, sourcePath, babelOptions, transformOptions);
},
async getCacheKeyAsync(sourceText, sourcePath, transformOptions) {
const babelOptions = await loadBabelConfigAsync(transformOptions.config.cwd, sourcePath, mergeBabelTransformOptions(sourcePath, transformOptions));
return getCacheKeyFromConfig(sourceText, sourcePath, babelOptions, transformOptions);
},
process(sourceText, sourcePath, transformOptions) {
const babelOptions = loadBabelOptions(transformOptions.config.cwd, sourcePath, mergeBabelTransformOptions(sourcePath, transformOptions), transformOptions);
const transformResult = (0, _core().transformSync)(sourceText, babelOptions);
if (transformResult) {
const {
code,
map
} = transformResult;
if (typeof code === 'string') {
return {
code,
map
};
}
}
return {
code: sourceText
};
},
async processAsync(sourceText, sourcePath, transformOptions) {
const babelOptions = await loadBabelOptionsAsync(transformOptions.config.cwd, sourcePath, mergeBabelTransformOptions(sourcePath, transformOptions), transformOptions);
const transformResult = await (0, _core().transformAsync)(sourceText, babelOptions);
if (transformResult) {
const {
code,
map
} = transformResult;
if (typeof code === 'string') {
return {
code,
map
};
}
}
return {
code: sourceText
};
}
};
};
exports.createTransformer = createTransformer;
const transformerFactory = {
// Assigned here, instead of as a separate export, due to limitations in Jest's
// requireOrImportModule, requiring all exports to be on the `default` export
createTransformer
};
var _default = exports["default"] = transformerFactory;
})();
module.exports = __webpack_exports__;
/******/ })()
;