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1 files changed, 152 insertions, 0 deletions

diff --git a/node_modules/@babel/preset-env/lib/normalize-options.js b/node_modules/@babel/preset-env/lib/normalize-options.js
new file mode 100644
index 00000000..178795a3
--- /dev/null
+++ b/node_modules/@babel/preset-env/lib/normalize-options.js
@@ -0,0 +1,152 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = normalizeOptions;
+exports.validateUseBuiltInsOption = exports.objectToBrowserslist = exports.validateModulesOption = exports.validateIgnoreBrowserslistConfig = exports.validateBoolOption = exports.validateConfigPathOption = exports.checkDuplicateIncludeExcludes = exports.normalizePluginName = void 0;
+
+function _invariant() {
+  const data = _interopRequireDefault(require("invariant"));
+
+  _invariant = function _invariant() {
+    return data;
+  };
+
+  return data;
+}
+
+function _browserslist() {
+  const data = _interopRequireDefault(require("browserslist"));
+
+  _browserslist = function _browserslist() {
+    return data;
+  };
+
+  return data;
+}
+
+var _builtIns = _interopRequireDefault(require("../data/built-ins.json"));
+
+var _defaultIncludes = require("./default-includes");
+
+var _moduleTransformations = _interopRequireDefault(require("./module-transformations"));
+
+var _plugins = _interopRequireDefault(require("../data/plugins.json"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const validIncludesAndExcludes = new Set([...Object.keys(_plugins.default), ...Object.keys(_moduleTransformations.default).map(m => _moduleTransformations.default[m]), ...Object.keys(_builtIns.default), ..._defaultIncludes.defaultWebIncludes]);
+
+const pluginToRegExp = plugin => {
+  if (plugin instanceof RegExp) return plugin;
+
+  try {
+    return new RegExp(`^${normalizePluginName(plugin)}$`);
+  } catch (e) {
+    return null;
+  }
+};
+
+const selectPlugins = regexp => Array.from(validIncludesAndExcludes).filter(item => regexp instanceof RegExp && regexp.test(item));
+
+const flatten = array => [].concat(...array);
+
+const expandIncludesAndExcludes = (plugins = [], type) => {
+  if (plugins.length === 0) return [];
+  const selectedPlugins = plugins.map(plugin => selectPlugins(pluginToRegExp(plugin)));
+  const invalidRegExpList = plugins.filter((p, i) => selectedPlugins[i].length === 0);
+  (0, _invariant().default)(invalidRegExpList.length === 0, `Invalid Option: The plugins/built-ins '${invalidRegExpList.join(", ")}' passed to the '${type}' option are not
+    valid. Please check data/[plugin-features|built-in-features].js in babel-preset-env`);
+  return flatten(selectedPlugins);
+};
+
+const validBrowserslistTargets = [...Object.keys(_browserslist().default.data), ...Object.keys(_browserslist().default.aliases)];
+
+const normalizePluginName = plugin => plugin.replace(/^babel-plugin-/, "");
+
+exports.normalizePluginName = normalizePluginName;
+
+const checkDuplicateIncludeExcludes = (include = [], exclude = []) => {
+  const duplicates = include.filter(opt => exclude.indexOf(opt) >= 0);
+  (0, _invariant().default)(duplicates.length === 0, `Invalid Option: The plugins/built-ins '${duplicates.join(", ")}' were found in both the "include" and
+    "exclude" options.`);
+};
+
+exports.checkDuplicateIncludeExcludes = checkDuplicateIncludeExcludes;
+
+const validateConfigPathOption = (configPath = process.cwd()) => {
+  (0, _invariant().default)(typeof configPath === "string", `Invalid Option: The configPath option '${configPath}' is invalid, only strings are allowed.`);
+  return configPath;
+};
+
+exports.validateConfigPathOption = validateConfigPathOption;
+
+const validateBoolOption = (name, value, defaultValue) => {
+  if (typeof value === "undefined") {
+    value = defaultValue;
+  }
+
+  if (typeof value !== "boolean") {
+    throw new Error(`Preset env: '${name}' option must be a boolean.`);
+  }
+
+  return value;
+};
+
+exports.validateBoolOption = validateBoolOption;
+
+const validateIgnoreBrowserslistConfig = ignoreBrowserslistConfig => validateBoolOption("ignoreBrowserslistConfig", ignoreBrowserslistConfig, false);
+
+exports.validateIgnoreBrowserslistConfig = validateIgnoreBrowserslistConfig;
+
+const validateModulesOption = (modulesOpt = "commonjs") => {
+  (0, _invariant().default)(modulesOpt === false || Object.keys(_moduleTransformations.default).indexOf(modulesOpt) > -1, `Invalid Option: The 'modules' option must be either 'false' to indicate no modules, or a
+    module type which can be be one of: 'commonjs' (default), 'amd', 'umd', 'systemjs'.`);
+  return modulesOpt;
+};
+
+exports.validateModulesOption = validateModulesOption;
+
+const objectToBrowserslist = object => {
+  return Object.keys(object).reduce((list, targetName) => {
+    if (validBrowserslistTargets.indexOf(targetName) >= 0) {
+      const targetVersion = object[targetName];
+      return list.concat(`${targetName} ${targetVersion}`);
+    }
+
+    return list;
+  }, []);
+};
+
+exports.objectToBrowserslist = objectToBrowserslist;
+
+const validateUseBuiltInsOption = (builtInsOpt = false) => {
+  (0, _invariant().default)(builtInsOpt === "usage" || builtInsOpt === false || builtInsOpt === "entry", `Invalid Option: The 'useBuiltIns' option must be either
+    'false' (default) to indicate no polyfill,
+    '"entry"' to indicate replacing the entry polyfill, or
+    '"usage"' to import only used polyfills per file`);
+  return builtInsOpt;
+};
+
+exports.validateUseBuiltInsOption = validateUseBuiltInsOption;
+
+function normalizeOptions(opts) {
+  const include = expandIncludesAndExcludes(opts.include, "include");
+  const exclude = expandIncludesAndExcludes(opts.exclude, "exclude");
+  checkDuplicateIncludeExcludes(include, exclude);
+  return {
+    configPath: validateConfigPathOption(opts.configPath),
+    debug: opts.debug,
+    include,
+    exclude,
+    forceAllTransforms: validateBoolOption("forceAllTransforms", opts.forceAllTransforms, false),
+    ignoreBrowserslistConfig: validateIgnoreBrowserslistConfig(opts.ignoreBrowserslistConfig),
+    loose: validateBoolOption("loose", opts.loose, false),
+    modules: validateModulesOption(opts.modules),
+    shippedProposals: validateBoolOption("shippedProposals", opts.shippedProposals, false),
+    spec: validateBoolOption("loose", opts.spec, false),
+    targets: Object.assign({}, opts.targets),
+    useBuiltIns: validateUseBuiltInsOption(opts.useBuiltIns)
+  };
+}
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