Initial commit (from f5274cbdce4ae7c9e4b937dcdf95ac70ae436d5f)

node_modules/jest-resolve/build/defaultResolver.js

@@ -0,0 +1,197 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = defaultResolver;
+exports.clearDefaultResolverCache = clearDefaultResolverCache;
+
+function fs() {
+  const data = _interopRequireWildcard(require('fs'));
+
+  fs = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _resolve() {
+  const data = require('resolve');
+
+  _resolve = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _browserResolve() {
+  const data = require('browser-resolve');
+
+  _browserResolve = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _realpathNative() {
+  const data = require('realpath-native');
+
+  _realpathNative = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _jestPnpResolver() {
+  const data = _interopRequireDefault(require('jest-pnp-resolver'));
+
+  _jestPnpResolver = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+function _getRequireWildcardCache() {
+  if (typeof WeakMap !== 'function') return null;
+  var cache = new WeakMap();
+  _getRequireWildcardCache = function () {
+    return cache;
+  };
+  return cache;
+}
+
+function _interopRequireWildcard(obj) {
+  if (obj && obj.__esModule) {
+    return obj;
+  }
+  if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    return {default: obj};
+  }
+  var cache = _getRequireWildcardCache();
+  if (cache && cache.has(obj)) {
+    return cache.get(obj);
+  }
+  var newObj = {};
+  var hasPropertyDescriptor =
+    Object.defineProperty && Object.getOwnPropertyDescriptor;
+  for (var key in obj) {
+    if (Object.prototype.hasOwnProperty.call(obj, key)) {
+      var desc = hasPropertyDescriptor
+        ? Object.getOwnPropertyDescriptor(obj, key)
+        : null;
+      if (desc && (desc.get || desc.set)) {
+        Object.defineProperty(newObj, key, desc);
+      } else {
+        newObj[key] = obj[key];
+      }
+    }
+  }
+  newObj.default = obj;
+  if (cache) {
+    cache.set(obj, newObj);
+  }
+  return newObj;
+}
+
+/**
+ * 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) {
+  // @ts-ignore: the "pnp" version named isn't in DefinitelyTyped
+  if (process.versions.pnp) {
+    return (0, _jestPnpResolver().default)(path, options);
+  }
+
+  const resolve = options.browser ? _browserResolve().sync : _resolve().sync;
+  const result = resolve(path, {
+    basedir: options.basedir,
+    extensions: options.extensions,
+    isDirectory,
+    isFile,
+    moduleDirectory: options.moduleDirectory,
+    paths: options.paths,
+    preserveSymlinks: false
+  });
+
+  try {
+    // Dereference symlinks to ensure we don't create a separate
+    // module instance depending on how it was referenced.
+    const resolved = (0, _realpathNative().sync)(result);
+
+    if (resolved) {
+      return resolved;
+    }
+  } catch (_unused) {
+    // ignore
+  }
+
+  return result;
+}
+
+function clearDefaultResolverCache() {
+  checkedPaths.clear();
+}
+
+var IPathType;
+
+(function (IPathType) {
+  IPathType[(IPathType['FILE'] = 1)] = 'FILE';
+  IPathType[(IPathType['DIRECTORY'] = 2)] = 'DIRECTORY';
+  IPathType[(IPathType['OTHER'] = 3)] = 'OTHER';
+})(IPathType || (IPathType = {}));
+
+const checkedPaths = new Map();
+
+function statSyncCached(path) {
+  const result = checkedPaths.get(path);
+
+  if (result !== undefined) {
+    return result;
+  }
+
+  let stat;
+
+  try {
+    stat = fs().statSync(path);
+  } catch (e) {
+    if (!(e && (e.code === 'ENOENT' || e.code === 'ENOTDIR'))) {
+      throw e;
+    }
+  }
+
+  if (stat) {
+    if (stat.isFile() || stat.isFIFO()) {
+      checkedPaths.set(path, IPathType.FILE);
+      return IPathType.FILE;
+    } else if (stat.isDirectory()) {
+      checkedPaths.set(path, IPathType.DIRECTORY);
+      return IPathType.DIRECTORY;
+    }
+  }
+
+  checkedPaths.set(path, IPathType.OTHER);
+  return IPathType.OTHER;
+}
+/*
+ * helper functions
+ */
+
+function isFile(file) {
+  return statSyncCached(file) === IPathType.FILE;
+}
+
+function isDirectory(dir) {
+  return statSyncCached(dir) === IPathType.DIRECTORY;
+}