Add node modules and new code for release (#57)

Co-authored-by: taakleton <taakleton@users.noreply.github.com>

node_modules/@babel/helpers/LICENSE

@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2014-present Sebastian McKenzie and other contributors
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/@babel/helpers/README.md

@@ -0,0 +1,19 @@
+# @babel/helpers
+
+> Collection of helper functions used by Babel transforms.
+
+See our website [@babel/helpers](https://babeljs.io/docs/en/babel-helpers) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save-dev @babel/helpers
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/helpers --dev
+```

node_modules/@babel/helpers/lib/helpers-generated.js

@@ -0,0 +1,25 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _template = require("@babel/template");
+
+function helper(minVersion, source) {
+  return Object.freeze({
+    minVersion,
+    ast: () => _template.default.program.ast(source)
+  });
+}
+
+var _default = Object.freeze({
+  asyncIterator: helper("7.15.9", 'export default function _asyncIterator(iterable){var method,async,sync,retry=2;for("undefined"!=typeof Symbol&&(async=Symbol.asyncIterator,sync=Symbol.iterator);retry--;){if(async&&null!=(method=iterable[async]))return method.call(iterable);if(sync&&null!=(method=iterable[sync]))return new AsyncFromSyncIterator(method.call(iterable));async="@@asyncIterator",sync="@@iterator"}throw new TypeError("Object is not async iterable")}function AsyncFromSyncIterator(s){function AsyncFromSyncIteratorContinuation(r){if(Object(r)!==r)return Promise.reject(new TypeError(r+" is not an object."));var done=r.done;return Promise.resolve(r.value).then((function(value){return{value:value,done:done}}))}return AsyncFromSyncIterator=function(s){this.s=s,this.n=s.next},AsyncFromSyncIterator.prototype={s:null,n:null,next:function(){return AsyncFromSyncIteratorContinuation(this.n.apply(this.s,arguments))},return:function(value){var ret=this.s.return;return void 0===ret?Promise.resolve({value:value,done:!0}):AsyncFromSyncIteratorContinuation(ret.apply(this.s,arguments))},throw:function(value){var thr=this.s.return;return void 0===thr?Promise.reject(value):AsyncFromSyncIteratorContinuation(thr.apply(this.s,arguments))}},new AsyncFromSyncIterator(s)}'),
+  jsx: helper("7.0.0-beta.0", 'var REACT_ELEMENT_TYPE;export default function _createRawReactElement(type,props,key,children){REACT_ELEMENT_TYPE||(REACT_ELEMENT_TYPE="function"==typeof Symbol&&Symbol.for&&Symbol.for("react.element")||60103);var defaultProps=type&&type.defaultProps,childrenLength=arguments.length-3;if(props||0===childrenLength||(props={children:void 0}),1===childrenLength)props.children=children;else if(childrenLength>1){for(var childArray=new Array(childrenLength),i=0;i<childrenLength;i++)childArray[i]=arguments[i+3];props.children=childArray}if(props&&defaultProps)for(var propName in defaultProps)void 0===props[propName]&&(props[propName]=defaultProps[propName]);else props||(props=defaultProps||{});return{$$typeof:REACT_ELEMENT_TYPE,type:type,key:void 0===key?null:""+key,ref:null,props:props,_owner:null}}'),
+  objectSpread2: helper("7.5.0", 'import defineProperty from"defineProperty";function ownKeys(object,enumerableOnly){var keys=Object.keys(object);if(Object.getOwnPropertySymbols){var symbols=Object.getOwnPropertySymbols(object);enumerableOnly&&(symbols=symbols.filter((function(sym){return Object.getOwnPropertyDescriptor(object,sym).enumerable}))),keys.push.apply(keys,symbols)}return keys}export default function _objectSpread2(target){for(var i=1;i<arguments.length;i++){var source=null!=arguments[i]?arguments[i]:{};i%2?ownKeys(Object(source),!0).forEach((function(key){defineProperty(target,key,source[key])})):Object.getOwnPropertyDescriptors?Object.defineProperties(target,Object.getOwnPropertyDescriptors(source)):ownKeys(Object(source)).forEach((function(key){Object.defineProperty(target,key,Object.getOwnPropertyDescriptor(source,key))}))}return target}'),
+  typeof: helper("7.0.0-beta.0", 'export default function _typeof(obj){"@babel/helpers - typeof";return _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj},_typeof(obj)}'),
+  wrapRegExp: helper("7.2.6", 'import setPrototypeOf from"setPrototypeOf";import inherits from"inherits";export default function _wrapRegExp(){_wrapRegExp=function(re,groups){return new BabelRegExp(re,void 0,groups)};var _super=RegExp.prototype,_groups=new WeakMap;function BabelRegExp(re,flags,groups){var _this=new RegExp(re,flags);return _groups.set(_this,groups||_groups.get(re)),setPrototypeOf(_this,BabelRegExp.prototype)}function buildGroups(result,re){var g=_groups.get(re);return Object.keys(g).reduce((function(groups,name){return groups[name]=result[g[name]],groups}),Object.create(null))}return inherits(BabelRegExp,RegExp),BabelRegExp.prototype.exec=function(str){var result=_super.exec.call(this,str);return result&&(result.groups=buildGroups(result,this)),result},BabelRegExp.prototype[Symbol.replace]=function(str,substitution){if("string"==typeof substitution){var groups=_groups.get(this);return _super[Symbol.replace].call(this,str,substitution.replace(/\\$<([^>]+)>/g,(function(_,name){return"$"+groups[name]})))}if("function"==typeof substitution){var _this=this;return _super[Symbol.replace].call(this,str,(function(){var args=arguments;return"object"!=typeof args[args.length-1]&&(args=[].slice.call(args)).push(buildGroups(args,_this)),substitution.apply(this,args)}))}return _super[Symbol.replace].call(this,str,substitution)},_wrapRegExp.apply(this,arguments)}')
+});
+
+exports.default = _default;

node_modules/@babel/helpers/lib/helpers/asyncIterator.js

@@ -0,0 +1,81 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _asyncIterator;
+
+function _asyncIterator(iterable) {
+  var method,
+      async,
+      sync,
+      retry = 2;
+
+  if (typeof Symbol !== "undefined") {
+    async = Symbol.asyncIterator;
+    sync = Symbol.iterator;
+  }
+
+  while (retry--) {
+    if (async && (method = iterable[async]) != null) {
+      return method.call(iterable);
+    }
+
+    if (sync && (method = iterable[sync]) != null) {
+      return new AsyncFromSyncIterator(method.call(iterable));
+    }
+
+    async = "@@asyncIterator";
+    sync = "@@iterator";
+  }
+
+  throw new TypeError("Object is not async iterable");
+}
+
+function AsyncFromSyncIterator(s) {
+  AsyncFromSyncIterator = function (s) {
+    this.s = s;
+    this.n = s.next;
+  };
+
+  AsyncFromSyncIterator.prototype = {
+    s: null,
+    n: null,
+    next: function () {
+      return AsyncFromSyncIteratorContinuation(this.n.apply(this.s, arguments));
+    },
+    return: function (value) {
+      var ret = this.s.return;
+
+      if (ret === undefined) {
+        return Promise.resolve({
+          value: value,
+          done: true
+        });
+      }
+
+      return AsyncFromSyncIteratorContinuation(ret.apply(this.s, arguments));
+    },
+    throw: function (value) {
+      var thr = this.s.return;
+      if (thr === undefined) return Promise.reject(value);
+      return AsyncFromSyncIteratorContinuation(thr.apply(this.s, arguments));
+    }
+  };
+
+  function AsyncFromSyncIteratorContinuation(r) {
+    if (Object(r) !== r) {
+      return Promise.reject(new TypeError(r + " is not an object."));
+    }
+
+    var done = r.done;
+    return Promise.resolve(r.value).then(function (value) {
+      return {
+        value: value,
+        done: done
+      };
+    });
+  }
+
+  return new AsyncFromSyncIterator(s);
+}

node_modules/@babel/helpers/lib/helpers/jsx.js

@@ -0,0 +1,53 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _createRawReactElement;
+var REACT_ELEMENT_TYPE;
+
+function _createRawReactElement(type, props, key, children) {
+  if (!REACT_ELEMENT_TYPE) {
+    REACT_ELEMENT_TYPE = typeof Symbol === "function" && Symbol["for"] && Symbol["for"]("react.element") || 0xeac7;
+  }
+
+  var defaultProps = type && type.defaultProps;
+  var childrenLength = arguments.length - 3;
+
+  if (!props && childrenLength !== 0) {
+    props = {
+      children: void 0
+    };
+  }
+
+  if (childrenLength === 1) {
+    props.children = children;
+  } else if (childrenLength > 1) {
+    var childArray = new Array(childrenLength);
+
+    for (var i = 0; i < childrenLength; i++) {
+      childArray[i] = arguments[i + 3];
+    }
+
+    props.children = childArray;
+  }
+
+  if (props && defaultProps) {
+    for (var propName in defaultProps) {
+      if (props[propName] === void 0) {
+        props[propName] = defaultProps[propName];
+      }
+    }
+  } else if (!props) {
+    props = defaultProps || {};
+  }
+
+  return {
+    $$typeof: REACT_ELEMENT_TYPE,
+    type: type,
+    key: key === undefined ? null : "" + key,
+    ref: null,
+    props: props,
+    _owner: null
+  };
+}

node_modules/@babel/helpers/lib/helpers/objectSpread2.js

@@ -0,0 +1,46 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _objectSpread2;
+
+var _defineProperty = require("defineProperty");
+
+function ownKeys(object, enumerableOnly) {
+  var keys = Object.keys(object);
+
+  if (Object.getOwnPropertySymbols) {
+    var symbols = Object.getOwnPropertySymbols(object);
+
+    if (enumerableOnly) {
+      symbols = symbols.filter(function (sym) {
+        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
+      });
+    }
+
+    keys.push.apply(keys, symbols);
+  }
+
+  return keys;
+}
+
+function _objectSpread2(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+
+    if (i % 2) {
+      ownKeys(Object(source), true).forEach(function (key) {
+        _defineProperty(target, key, source[key]);
+      });
+    } else if (Object.getOwnPropertyDescriptors) {
+      Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
+    } else {
+      ownKeys(Object(source)).forEach(function (key) {
+        Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
+      });
+    }
+  }
+
+  return target;
+}

node_modules/@babel/helpers/lib/helpers/typeof.js

@@ -0,0 +1,22 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _typeof;
+
+function _typeof(obj) {
+  "@babel/helpers - typeof";
+
+  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+    exports.default = _typeof = function (obj) {
+      return typeof obj;
+    };
+  } else {
+    exports.default = _typeof = function (obj) {
+      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+    };
+  }
+
+  return _typeof(obj);
+}

node_modules/@babel/helpers/lib/helpers/wrapRegExp.js

@@ -0,0 +1,73 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _wrapRegExp;
+
+var _setPrototypeOf = require("setPrototypeOf");
+
+var _inherits = require("inherits");
+
+function _wrapRegExp() {
+  exports.default = _wrapRegExp = function (re, groups) {
+    return new BabelRegExp(re, undefined, groups);
+  };
+
+  var _super = RegExp.prototype;
+
+  var _groups = new WeakMap();
+
+  function BabelRegExp(re, flags, groups) {
+    var _this = new RegExp(re, flags);
+
+    _groups.set(_this, groups || _groups.get(re));
+
+    return _setPrototypeOf(_this, BabelRegExp.prototype);
+  }
+
+  _inherits(BabelRegExp, RegExp);
+
+  BabelRegExp.prototype.exec = function (str) {
+    var result = _super.exec.call(this, str);
+
+    if (result) result.groups = buildGroups(result, this);
+    return result;
+  };
+
+  BabelRegExp.prototype[Symbol.replace] = function (str, substitution) {
+    if (typeof substitution === "string") {
+      var groups = _groups.get(this);
+
+      return _super[Symbol.replace].call(this, str, substitution.replace(/\$<([^>]+)>/g, function (_, name) {
+        return "$" + groups[name];
+      }));
+    } else if (typeof substitution === "function") {
+      var _this = this;
+
+      return _super[Symbol.replace].call(this, str, function () {
+        var args = arguments;
+
+        if (typeof args[args.length - 1] !== "object") {
+          args = [].slice.call(args);
+          args.push(buildGroups(args, _this));
+        }
+
+        return substitution.apply(this, args);
+      });
+    } else {
+      return _super[Symbol.replace].call(this, str, substitution);
+    }
+  };
+
+  function buildGroups(result, re) {
+    var g = _groups.get(re);
+
+    return Object.keys(g).reduce(function (groups, name) {
+      groups[name] = result[g[name]];
+      return groups;
+    }, Object.create(null));
+  }
+
+  return _wrapRegExp.apply(this, arguments);
+}

node_modules/@babel/helpers/lib/index.js

@@ -0,0 +1,300 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+exports.ensure = ensure;
+exports.get = get;
+exports.getDependencies = getDependencies;
+exports.list = void 0;
+exports.minVersion = minVersion;
+
+var _traverse = require("@babel/traverse");
+
+var _t = require("@babel/types");
+
+var _helpers = require("./helpers");
+
+const {
+  assignmentExpression,
+  cloneNode,
+  expressionStatement,
+  file: t_file,
+  identifier,
+  variableDeclaration,
+  variableDeclarator
+} = _t;
+
+function makePath(path) {
+  const parts = [];
+
+  for (; path.parentPath; path = path.parentPath) {
+    parts.push(path.key);
+    if (path.inList) parts.push(path.listKey);
+  }
+
+  return parts.reverse().join(".");
+}
+
+let fileClass = undefined;
+
+function getHelperMetadata(file) {
+  const globals = new Set();
+  const localBindingNames = new Set();
+  const dependencies = new Map();
+  let exportName;
+  let exportPath;
+  const exportBindingAssignments = [];
+  const importPaths = [];
+  const importBindingsReferences = [];
+  const dependencyVisitor = {
+    ImportDeclaration(child) {
+      const name = child.node.source.value;
+
+      if (!_helpers.default[name]) {
+        throw child.buildCodeFrameError(`Unknown helper ${name}`);
+      }
+
+      if (child.get("specifiers").length !== 1 || !child.get("specifiers.0").isImportDefaultSpecifier()) {
+        throw child.buildCodeFrameError("Helpers can only import a default value");
+      }
+
+      const bindingIdentifier = child.node.specifiers[0].local;
+      dependencies.set(bindingIdentifier, name);
+      importPaths.push(makePath(child));
+    },
+
+    ExportDefaultDeclaration(child) {
+      const decl = child.get("declaration");
+
+      if (decl.isFunctionDeclaration()) {
+        if (!decl.node.id) {
+          throw decl.buildCodeFrameError("Helpers should give names to their exported func declaration");
+        }
+
+        exportName = decl.node.id.name;
+      }
+
+      exportPath = makePath(child);
+    },
+
+    ExportAllDeclaration(child) {
+      throw child.buildCodeFrameError("Helpers can only export default");
+    },
+
+    ExportNamedDeclaration(child) {
+      throw child.buildCodeFrameError("Helpers can only export default");
+    },
+
+    Statement(child) {
+      if (child.isModuleDeclaration()) return;
+      child.skip();
+    }
+
+  };
+  const referenceVisitor = {
+    Program(path) {
+      const bindings = path.scope.getAllBindings();
+      Object.keys(bindings).forEach(name => {
+        if (name === exportName) return;
+        if (dependencies.has(bindings[name].identifier)) return;
+        localBindingNames.add(name);
+      });
+    },
+
+    ReferencedIdentifier(child) {
+      const name = child.node.name;
+      const binding = child.scope.getBinding(name);
+
+      if (!binding) {
+        globals.add(name);
+      } else if (dependencies.has(binding.identifier)) {
+        importBindingsReferences.push(makePath(child));
+      }
+    },
+
+    AssignmentExpression(child) {
+      const left = child.get("left");
+      if (!(exportName in left.getBindingIdentifiers())) return;
+
+      if (!left.isIdentifier()) {
+        throw left.buildCodeFrameError("Only simple assignments to exports are allowed in helpers");
+      }
+
+      const binding = child.scope.getBinding(exportName);
+
+      if (binding != null && binding.scope.path.isProgram()) {
+        exportBindingAssignments.push(makePath(child));
+      }
+    }
+
+  };
+  (0, _traverse.default)(file.ast, dependencyVisitor, file.scope);
+  (0, _traverse.default)(file.ast, referenceVisitor, file.scope);
+  if (!exportPath) throw new Error("Helpers must default-export something.");
+  exportBindingAssignments.reverse();
+  return {
+    globals: Array.from(globals),
+    localBindingNames: Array.from(localBindingNames),
+    dependencies,
+    exportBindingAssignments,
+    exportPath,
+    exportName,
+    importBindingsReferences,
+    importPaths
+  };
+}
+
+function permuteHelperAST(file, metadata, id, localBindings, getDependency) {
+  if (localBindings && !id) {
+    throw new Error("Unexpected local bindings for module-based helpers.");
+  }
+
+  if (!id) return;
+  const {
+    localBindingNames,
+    dependencies,
+    exportBindingAssignments,
+    exportPath,
+    exportName,
+    importBindingsReferences,
+    importPaths
+  } = metadata;
+  const dependenciesRefs = {};
+  dependencies.forEach((name, id) => {
+    dependenciesRefs[id.name] = typeof getDependency === "function" && getDependency(name) || id;
+  });
+  const toRename = {};
+  const bindings = new Set(localBindings || []);
+  localBindingNames.forEach(name => {
+    let newName = name;
+
+    while (bindings.has(newName)) newName = "_" + newName;
+
+    if (newName !== name) toRename[name] = newName;
+  });
+
+  if (id.type === "Identifier" && exportName !== id.name) {
+    toRename[exportName] = id.name;
+  }
+
+  const visitor = {
+    Program(path) {
+      const exp = path.get(exportPath);
+      const imps = importPaths.map(p => path.get(p));
+      const impsBindingRefs = importBindingsReferences.map(p => path.get(p));
+      const decl = exp.get("declaration");
+
+      if (id.type === "Identifier") {
+        if (decl.isFunctionDeclaration()) {
+          exp.replaceWith(decl);
+        } else {
+          exp.replaceWith(variableDeclaration("var", [variableDeclarator(id, decl.node)]));
+        }
+      } else if (id.type === "MemberExpression") {
+        if (decl.isFunctionDeclaration()) {
+          exportBindingAssignments.forEach(assignPath => {
+            const assign = path.get(assignPath);
+            assign.replaceWith(assignmentExpression("=", id, assign.node));
+          });
+          exp.replaceWith(decl);
+          path.pushContainer("body", expressionStatement(assignmentExpression("=", id, identifier(exportName))));
+        } else {
+          exp.replaceWith(expressionStatement(assignmentExpression("=", id, decl.node)));
+        }
+      } else {
+        throw new Error("Unexpected helper format.");
+      }
+
+      Object.keys(toRename).forEach(name => {
+        path.scope.rename(name, toRename[name]);
+      });
+
+      for (const path of imps) path.remove();
+
+      for (const path of impsBindingRefs) {
+        const node = cloneNode(dependenciesRefs[path.node.name]);
+        path.replaceWith(node);
+      }
+
+      path.stop();
+    }
+
+  };
+  (0, _traverse.default)(file.ast, visitor, file.scope);
+}
+
+const helperData = Object.create(null);
+
+function loadHelper(name) {
+  if (!helperData[name]) {
+    const helper = _helpers.default[name];
+
+    if (!helper) {
+      throw Object.assign(new ReferenceError(`Unknown helper ${name}`), {
+        code: "BABEL_HELPER_UNKNOWN",
+        helper: name
+      });
+    }
+
+    const fn = () => {
+      const file = {
+        ast: t_file(helper.ast())
+      };
+
+      if (fileClass) {
+        return new fileClass({
+          filename: `babel-helper://${name}`
+        }, file);
+      }
+
+      return file;
+    };
+
+    const metadata = getHelperMetadata(fn());
+    helperData[name] = {
+      build(getDependency, id, localBindings) {
+        const file = fn();
+        permuteHelperAST(file, metadata, id, localBindings, getDependency);
+        return {
+          nodes: file.ast.program.body,
+          globals: metadata.globals
+        };
+      },
+
+      minVersion() {
+        return helper.minVersion;
+      },
+
+      dependencies: metadata.dependencies
+    };
+  }
+
+  return helperData[name];
+}
+
+function get(name, getDependency, id, localBindings) {
+  return loadHelper(name).build(getDependency, id, localBindings);
+}
+
+function minVersion(name) {
+  return loadHelper(name).minVersion();
+}
+
+function getDependencies(name) {
+  return Array.from(loadHelper(name).dependencies.values());
+}
+
+function ensure(name, newFileClass) {
+  if (!fileClass) {
+    fileClass = newFileClass;
+  }
+
+  loadHelper(name);
+}
+
+const list = Object.keys(_helpers.default).map(name => name.replace(/^_/, ""));
+exports.list = list;
+var _default = get;
+exports.default = _default;

node_modules/@babel/helpers/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "@babel/helpers",
+  "version": "7.16.7",
+  "description": "Collection of helper functions used by Babel transforms.",
+  "author": "The Babel Team (https://babel.dev/team)",
+  "homepage": "https://babel.dev/docs/en/next/babel-helpers",
+  "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/babel/babel.git",
+    "directory": "packages/babel-helpers"
+  },
+  "main": "./lib/index.js",
+  "dependencies": {
+    "@babel/template": "^7.16.7",
+    "@babel/traverse": "^7.16.7",
+    "@babel/types": "^7.16.7"
+  },
+  "devDependencies": {
+    "@babel/helper-plugin-test-runner": "^7.16.7",
+    "terser": "^5.9.0"
+  },
+  "engines": {
+    "node": ">=6.9.0"
+  }
+}

node_modules/@babel/helpers/scripts/generate-helpers.js

@@ -0,0 +1,64 @@
+import fs from "fs";
+import { join } from "path";
+import { URL, fileURLToPath } from "url";
+import { minify } from "terser"; // eslint-disable-line
+
+const HELPERS_FOLDER = new URL("../src/helpers", import.meta.url);
+const IGNORED_FILES = new Set(["package.json"]);
+
+export default async function generateHelpers() {
+  let output = `/*
+ * This file is auto-generated! Do not modify it directly.
+ * To re-generate run 'yarn gulp generate-runtime-helpers'
+ */
+
+import template from "@babel/template";
+
+function helper(minVersion, source) {
+  return Object.freeze({
+    minVersion,
+    ast: () => template.program.ast(source),
+  })
+}
+
+export default Object.freeze({
+`;
+
+  for (const file of (await fs.promises.readdir(HELPERS_FOLDER)).sort()) {
+    if (IGNORED_FILES.has(file)) continue;
+    if (file.startsWith(".")) continue; // ignore e.g. vim swap files
+
+    const [helperName] = file.split(".");
+
+    const filePath = join(fileURLToPath(HELPERS_FOLDER), file);
+    if (!file.endsWith(".js")) {
+      console.error("ignoring", filePath);
+      continue;
+    }
+
+    const fileContents = await fs.promises.readFile(filePath, "utf8");
+    const minVersionMatch = fileContents.match(
+      /^\s*\/\*\s*@minVersion\s+(?<minVersion>\S+)\s*\*\/\s*$/m
+    );
+    if (!minVersionMatch) {
+      throw new Error(`@minVersion number missing in ${filePath}`);
+    }
+    const { minVersion } = minVersionMatch.groups;
+
+    const source = await minify(fileContents, {
+      mangle: false,
+      // The _typeof helper has a custom directive that we must keep
+      compress: { directives: false },
+    });
+
+    output += `\
+  ${JSON.stringify(helperName)}: helper(
+    ${JSON.stringify(minVersion)},
+    ${JSON.stringify(source.code)},
+  ),
+`;
+  }
+
+  output += "});";
+  return output;
+}

node_modules/@babel/helpers/scripts/package.json

@@ -0,0 +1 @@
+{ "type": "module" }