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Diffstat (limited to 'node_modules/jest-resolve/build/defaultResolver.js')
-rw-r--r-- | node_modules/jest-resolve/build/defaultResolver.js | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/node_modules/jest-resolve/build/defaultResolver.js b/node_modules/jest-resolve/build/defaultResolver.js new file mode 100644 index 0000000..6b26f66 --- /dev/null +++ b/node_modules/jest-resolve/build/defaultResolver.js @@ -0,0 +1,123 @@ +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); +exports.default = defaultResolver; + +function _path() { + const data = require('path'); + + _path = function () { + return data; + }; + + return data; +} + +function _jestPnpResolver() { + const data = _interopRequireDefault(require('jest-pnp-resolver')); + + _jestPnpResolver = function () { + return data; + }; + + return data; +} + +function _resolve() { + const data = require('resolve'); + + _resolve = function () { + return data; + }; + + return data; +} + +var _resolve2 = require('resolve.exports'); + +var _fileWalkers = require('./fileWalkers'); + +function _interopRequireDefault(obj) { + return obj && obj.__esModule ? obj : {default: obj}; +} + +/** + * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ +function defaultResolver(path, options) { + // Yarn 2 adds support to `resolve` automatically so the pnpResolver is only + // needed for Yarn 1 which implements version 1 of the pnp spec + if (process.versions.pnp === '1') { + return (0, _jestPnpResolver().default)(path, options); + } + + const result = (0, _resolve().sync)(path, { + ...options, + isDirectory: _fileWalkers.isDirectory, + isFile: _fileWalkers.isFile, + packageFilter: createPackageFilter( + options.conditions, + options.packageFilter + ), + preserveSymlinks: false, + readPackageSync, + realpathSync: _fileWalkers.realpathSync + }); // Dereference symlinks to ensure we don't create a separate + // module instance depending on how it was referenced. + + return (0, _fileWalkers.realpathSync)(result); +} +/* + * helper functions + */ + +function readPackageSync(_, file) { + return (0, _fileWalkers.readPackageCached)(file); +} + +function createPackageFilter(conditions, userFilter) { + function attemptExportsFallback(pkg) { + const options = conditions + ? { + conditions, + unsafe: true + } // no conditions were passed - let's assume this is Jest internal and it should be `require` + : { + browser: false, + require: true + }; + + try { + return (0, _resolve2.resolve)(pkg, '.', options); + } catch { + return undefined; + } + } + + return function packageFilter(pkg, packageDir) { + let filteredPkg = pkg; + + if (userFilter) { + filteredPkg = userFilter(filteredPkg, packageDir); + } + + if (filteredPkg.main != null) { + return filteredPkg; + } + + const indexInRoot = (0, _path().resolve)(packageDir, './index.js'); // if the module contains an `index.js` file in root, `resolve` will request + // that if there is no `main`. Since we don't wanna break that, add this + // check + + if ((0, _fileWalkers.isFile)(indexInRoot)) { + return filteredPkg; + } + + return {...filteredPkg, main: attemptExportsFallback(filteredPkg)}; + }; +} |