0.2.0 - Mid migration

web/node_modules/@babel/helper-create-class-features-plugin/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.

web/node_modules/@babel/helper-create-class-features-plugin/README.md

@@ -0,0 +1,19 @@
+# @babel/helper-create-class-features-plugin
+
+> Compile class public and private fields, private methods and decorators to ES6
+
+See our website [@babel/helper-create-class-features-plugin](https://babeljs.io/docs/en/babel-helper-create-class-features-plugin) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save-dev @babel/helper-create-class-features-plugin
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/helper-create-class-features-plugin --dev
+```

web/node_modules/@babel/helper-create-class-features-plugin/lib/decorators.js

@@ -0,0 +1,162 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.hasOwnDecorators = hasOwnDecorators;
+exports.hasDecorators = hasDecorators;
+exports.buildDecoratedClass = buildDecoratedClass;
+
+var _core = require("@babel/core");
+
+var _helperReplaceSupers = require("@babel/helper-replace-supers");
+
+var _helperFunctionName = require("@babel/helper-function-name");
+
+function hasOwnDecorators(node) {
+  return !!(node.decorators && node.decorators.length);
+}
+
+function hasDecorators(node) {
+  return hasOwnDecorators(node) || node.body.body.some(hasOwnDecorators);
+}
+
+function prop(key, value) {
+  if (!value) return null;
+  return _core.types.objectProperty(_core.types.identifier(key), value);
+}
+
+function method(key, body) {
+  return _core.types.objectMethod("method", _core.types.identifier(key), [], _core.types.blockStatement(body));
+}
+
+function takeDecorators(node) {
+  let result;
+
+  if (node.decorators && node.decorators.length > 0) {
+    result = _core.types.arrayExpression(node.decorators.map(decorator => decorator.expression));
+  }
+
+  node.decorators = undefined;
+  return result;
+}
+
+function getKey(node) {
+  if (node.computed) {
+    return node.key;
+  } else if (_core.types.isIdentifier(node.key)) {
+    return _core.types.stringLiteral(node.key.name);
+  } else {
+    return _core.types.stringLiteral(String(node.key.value));
+  }
+}
+
+function extractElementDescriptor(classRef, superRef, path) {
+  const {
+    node,
+    scope
+  } = path;
+  const isMethod = path.isClassMethod();
+
+  if (path.isPrivate()) {
+    throw path.buildCodeFrameError(`Private ${isMethod ? "methods" : "fields"} in decorated classes are not supported yet.`);
+  }
+
+  new _helperReplaceSupers.default({
+    methodPath: path,
+    objectRef: classRef,
+    superRef,
+    file: this,
+    refToPreserve: classRef
+  }).replace();
+  const properties = [prop("kind", _core.types.stringLiteral(_core.types.isClassMethod(node) ? node.kind : "field")), prop("decorators", takeDecorators(node)), prop("static", node.static && _core.types.booleanLiteral(true)), prop("key", getKey(node))].filter(Boolean);
+
+  if (_core.types.isClassMethod(node)) {
+    const id = node.computed ? null : node.key;
+
+    _core.types.toExpression(node);
+
+    properties.push(prop("value", (0, _helperFunctionName.default)({
+      node,
+      id,
+      scope
+    }) || node));
+  } else if (_core.types.isClassProperty(node) && node.value) {
+    properties.push(method("value", _core.template.statements.ast`return ${node.value}`));
+  } else {
+    properties.push(prop("value", scope.buildUndefinedNode()));
+  }
+
+  path.remove();
+  return _core.types.objectExpression(properties);
+}
+
+function addDecorateHelper(file) {
+  try {
+    return file.addHelper("decorate");
+  } catch (err) {
+    if (err.code === "BABEL_HELPER_UNKNOWN") {
+      err.message += "\n  '@babel/plugin-transform-decorators' in non-legacy mode" + " requires '@babel/core' version ^7.0.2 and you appear to be using" + " an older version.";
+    }
+
+    throw err;
+  }
+}
+
+function buildDecoratedClass(ref, path, elements, file) {
+  const {
+    node,
+    scope
+  } = path;
+  const initializeId = scope.generateUidIdentifier("initialize");
+  const isDeclaration = node.id && path.isDeclaration();
+  const isStrict = path.isInStrictMode();
+  const {
+    superClass
+  } = node;
+  node.type = "ClassDeclaration";
+  if (!node.id) node.id = _core.types.cloneNode(ref);
+  let superId;
+
+  if (superClass) {
+    superId = scope.generateUidIdentifierBasedOnNode(node.superClass, "super");
+    node.superClass = superId;
+  }
+
+  const classDecorators = takeDecorators(node);
+
+  const definitions = _core.types.arrayExpression(elements.filter(element => !element.node.abstract).map(extractElementDescriptor.bind(file, node.id, superId)));
+
+  const wrapperCall = _core.template.expression.ast`
+    ${addDecorateHelper(file)}(
+      ${classDecorators || _core.types.nullLiteral()},
+      function (${initializeId}, ${superClass ? _core.types.cloneNode(superId) : null}) {
+        ${node}
+        return { F: ${_core.types.cloneNode(node.id)}, d: ${definitions} };
+      },
+      ${superClass}
+    )
+  `;
+
+  if (!isStrict) {
+    wrapperCall.arguments[1].body.directives.push(_core.types.directive(_core.types.directiveLiteral("use strict")));
+  }
+
+  let replacement = wrapperCall;
+  let classPathDesc = "arguments.1.body.body.0";
+
+  if (isDeclaration) {
+    replacement = _core.template.statement.ast`let ${ref} = ${wrapperCall}`;
+    classPathDesc = "declarations.0.init." + classPathDesc;
+  }
+
+  return {
+    instanceNodes: [_core.template.statement.ast`${_core.types.cloneNode(initializeId)}(this)`],
+
+    wrapClass(path) {
+      path.replaceWith(replacement);
+      return path.get(classPathDesc);
+    }
+
+  };
+}

web/node_modules/@babel/helper-create-class-features-plugin/lib/features.js

@@ -0,0 +1,122 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.enableFeature = enableFeature;
+exports.isLoose = isLoose;
+exports.verifyUsedFeatures = verifyUsedFeatures;
+exports.FEATURES = void 0;
+
+var _decorators = require("./decorators");
+
+const FEATURES = Object.freeze({
+  fields: 1 << 1,
+  privateMethods: 1 << 2,
+  decorators: 1 << 3,
+  privateIn: 1 << 4,
+  staticBlocks: 1 << 5
+});
+exports.FEATURES = FEATURES;
+const featuresSameLoose = new Map([[FEATURES.fields, "@babel/plugin-proposal-class-properties"], [FEATURES.privateMethods, "@babel/plugin-proposal-private-methods"], [FEATURES.privateIn, "@babel/plugin-proposal-private-property-in-object"]]);
+const featuresKey = "@babel/plugin-class-features/featuresKey";
+const looseKey = "@babel/plugin-class-features/looseKey";
+const looseLowPriorityKey = "@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing";
+
+function enableFeature(file, feature, loose) {
+  if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {
+    file.set(featuresKey, file.get(featuresKey) | feature);
+
+    if (loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
+      setLoose(file, feature, true);
+      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
+    } else if (loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
+      setLoose(file, feature, false);
+      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
+    } else {
+      setLoose(file, feature, loose);
+    }
+  }
+
+  let resolvedLoose;
+  let higherPriorityPluginName;
+
+  for (const [mask, name] of featuresSameLoose) {
+    if (!hasFeature(file, mask)) continue;
+    const loose = isLoose(file, mask);
+
+    if (canIgnoreLoose(file, mask)) {
+      continue;
+    } else if (resolvedLoose === !loose) {
+      throw new Error("'loose' mode configuration must be the same for @babel/plugin-proposal-class-properties, " + "@babel/plugin-proposal-private-methods and " + "@babel/plugin-proposal-private-property-in-object (when they are enabled).");
+    } else {
+      resolvedLoose = loose;
+      higherPriorityPluginName = name;
+    }
+  }
+
+  if (resolvedLoose !== undefined) {
+    for (const [mask, name] of featuresSameLoose) {
+      if (hasFeature(file, mask) && isLoose(file, mask) !== resolvedLoose) {
+        setLoose(file, mask, resolvedLoose);
+        console.warn(`Though the "loose" option was set to "${!resolvedLoose}" in your @babel/preset-env ` + `config, it will not be used for ${name} since the "loose" mode option was set to ` + `"${resolvedLoose}" for ${higherPriorityPluginName}.\nThe "loose" option must be the ` + `same for @babel/plugin-proposal-class-properties, @babel/plugin-proposal-private-methods ` + `and @babel/plugin-proposal-private-property-in-object (when they are enabled): you can ` + `silence this warning by explicitly adding\n` + `\t["${name}", { "loose": ${resolvedLoose} }]\n` + `to the "plugins" section of your Babel config.`);
+      }
+    }
+  }
+}
+
+function hasFeature(file, feature) {
+  return !!(file.get(featuresKey) & feature);
+}
+
+function isLoose(file, feature) {
+  return !!(file.get(looseKey) & feature);
+}
+
+function setLoose(file, feature, loose) {
+  if (loose) file.set(looseKey, file.get(looseKey) | feature);else file.set(looseKey, file.get(looseKey) & ~feature);
+  file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) & ~feature);
+}
+
+function canIgnoreLoose(file, feature) {
+  return !!(file.get(looseLowPriorityKey) & feature);
+}
+
+function verifyUsedFeatures(path, file) {
+  if ((0, _decorators.hasOwnDecorators)(path.node)) {
+    if (!hasFeature(file, FEATURES.decorators)) {
+      throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "legacy": true }], ' + 'make sure it comes *before* "@babel/plugin-proposal-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "legacy": true }]\n' + '\t["@babel/plugin-proposal-class-properties", { "loose": true }]');
+    }
+
+    if (path.isPrivate()) {
+      throw path.buildCodeFrameError(`Private ${path.isClassMethod() ? "methods" : "fields"} in decorated classes are not supported yet.`);
+    }
+  }
+
+  if (path.isClassPrivateMethod != null && path.isClassPrivateMethod()) {
+    if (!hasFeature(file, FEATURES.privateMethods)) {
+      throw path.buildCodeFrameError("Class private methods are not enabled.");
+    }
+  }
+
+  if (path.isPrivateName() && path.parentPath.isBinaryExpression({
+    operator: "in",
+    left: path.node
+  })) {
+    if (!hasFeature(file, FEATURES.privateIn)) {
+      throw path.buildCodeFrameError("Private property in checks are not enabled.");
+    }
+  }
+
+  if (path.isProperty()) {
+    if (!hasFeature(file, FEATURES.fields)) {
+      throw path.buildCodeFrameError("Class fields are not enabled.");
+    }
+  }
+
+  if (path.isStaticBlock != null && path.isStaticBlock()) {
+    if (!hasFeature(file, FEATURES.staticBlocks)) {
+      throw path.buildCodeFrameError("Static class blocks are not enabled. " + "Please add `@babel/plugin-proposal-class-static-block` to your configuration.");
+    }
+  }
+}

web/node_modules/@babel/helper-create-class-features-plugin/lib/fields.js

@@ -0,0 +1,834 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.buildPrivateNamesMap = buildPrivateNamesMap;
+exports.buildPrivateNamesNodes = buildPrivateNamesNodes;
+exports.transformPrivateNamesUsage = transformPrivateNamesUsage;
+exports.buildFieldsInitNodes = buildFieldsInitNodes;
+
+var _core = require("@babel/core");
+
+var _helperReplaceSupers = require("@babel/helper-replace-supers");
+
+var _helperMemberExpressionToFunctions = require("@babel/helper-member-expression-to-functions");
+
+var _helperOptimiseCallExpression = require("@babel/helper-optimise-call-expression");
+
+var _helperAnnotateAsPure = require("@babel/helper-annotate-as-pure");
+
+var ts = require("./typescript");
+
+function buildPrivateNamesMap(props) {
+  const privateNamesMap = new Map();
+
+  for (const prop of props) {
+    if (prop.isPrivate()) {
+      const {
+        name
+      } = prop.node.key.id;
+      const update = privateNamesMap.has(name) ? privateNamesMap.get(name) : {
+        id: prop.scope.generateUidIdentifier(name),
+        static: prop.node.static,
+        method: !prop.isProperty()
+      };
+
+      if (prop.isClassPrivateMethod()) {
+        if (prop.node.kind === "get") {
+          update.getId = prop.scope.generateUidIdentifier(`get_${name}`);
+        } else if (prop.node.kind === "set") {
+          update.setId = prop.scope.generateUidIdentifier(`set_${name}`);
+        } else if (prop.node.kind === "method") {
+          update.methodId = prop.scope.generateUidIdentifier(name);
+        }
+      }
+
+      privateNamesMap.set(name, update);
+    }
+  }
+
+  return privateNamesMap;
+}
+
+function buildPrivateNamesNodes(privateNamesMap, privateFieldsAsProperties, state) {
+  const initNodes = [];
+
+  for (const [name, value] of privateNamesMap) {
+    const {
+      static: isStatic,
+      method: isMethod,
+      getId,
+      setId
+    } = value;
+    const isAccessor = getId || setId;
+
+    const id = _core.types.cloneNode(value.id);
+
+    let init;
+
+    if (privateFieldsAsProperties) {
+      init = _core.types.callExpression(state.addHelper("classPrivateFieldLooseKey"), [_core.types.stringLiteral(name)]);
+    } else if (!isStatic) {
+      init = _core.types.newExpression(_core.types.identifier(!isMethod || isAccessor ? "WeakMap" : "WeakSet"), []);
+    }
+
+    if (init) {
+      (0, _helperAnnotateAsPure.default)(init);
+      initNodes.push(_core.template.statement.ast`var ${id} = ${init}`);
+    }
+  }
+
+  return initNodes;
+}
+
+function privateNameVisitorFactory(visitor) {
+  const privateNameVisitor = Object.assign({}, visitor, {
+    Class(path) {
+      const {
+        privateNamesMap
+      } = this;
+      const body = path.get("body.body");
+      const visiblePrivateNames = new Map(privateNamesMap);
+      const redeclared = [];
+
+      for (const prop of body) {
+        if (!prop.isPrivate()) continue;
+        const {
+          name
+        } = prop.node.key.id;
+        visiblePrivateNames.delete(name);
+        redeclared.push(name);
+      }
+
+      if (!redeclared.length) {
+        return;
+      }
+
+      path.get("body").traverse(nestedVisitor, Object.assign({}, this, {
+        redeclared
+      }));
+      path.traverse(privateNameVisitor, Object.assign({}, this, {
+        privateNamesMap: visiblePrivateNames
+      }));
+      path.skipKey("body");
+    }
+
+  });
+
+  const nestedVisitor = _core.traverse.visitors.merge([Object.assign({}, visitor), _helperReplaceSupers.environmentVisitor]);
+
+  return privateNameVisitor;
+}
+
+const privateNameVisitor = privateNameVisitorFactory({
+  PrivateName(path, {
+    noDocumentAll
+  }) {
+    const {
+      privateNamesMap,
+      redeclared
+    } = this;
+    const {
+      node,
+      parentPath
+    } = path;
+
+    if (!parentPath.isMemberExpression({
+      property: node
+    }) && !parentPath.isOptionalMemberExpression({
+      property: node
+    })) {
+      return;
+    }
+
+    const {
+      name
+    } = node.id;
+    if (!privateNamesMap.has(name)) return;
+    if (redeclared && redeclared.includes(name)) return;
+    this.handle(parentPath, noDocumentAll);
+  }
+
+});
+const privateInVisitor = privateNameVisitorFactory({
+  BinaryExpression(path) {
+    const {
+      operator,
+      left,
+      right
+    } = path.node;
+    if (operator !== "in") return;
+    if (!_core.types.isPrivateName(left)) return;
+    const {
+      privateFieldsAsProperties,
+      privateNamesMap,
+      redeclared
+    } = this;
+    const {
+      name
+    } = left.id;
+    if (!privateNamesMap.has(name)) return;
+    if (redeclared && redeclared.includes(name)) return;
+
+    if (privateFieldsAsProperties) {
+      const {
+        id
+      } = privateNamesMap.get(name);
+      path.replaceWith(_core.template.expression.ast`
+        Object.prototype.hasOwnProperty.call(${right}, ${_core.types.cloneNode(id)})
+      `);
+      return;
+    }
+
+    const {
+      id,
+      static: isStatic
+    } = privateNamesMap.get(name);
+
+    if (isStatic) {
+      path.replaceWith(_core.template.expression.ast`${right} === ${this.classRef}`);
+      return;
+    }
+
+    path.replaceWith(_core.template.expression.ast`${_core.types.cloneNode(id)}.has(${right})`);
+  }
+
+});
+const privateNameHandlerSpec = {
+  memoise(member, count) {
+    const {
+      scope
+    } = member;
+    const {
+      object
+    } = member.node;
+    const memo = scope.maybeGenerateMemoised(object);
+
+    if (!memo) {
+      return;
+    }
+
+    this.memoiser.set(object, memo, count);
+  },
+
+  receiver(member) {
+    const {
+      object
+    } = member.node;
+
+    if (this.memoiser.has(object)) {
+      return _core.types.cloneNode(this.memoiser.get(object));
+    }
+
+    return _core.types.cloneNode(object);
+  },
+
+  get(member) {
+    const {
+      classRef,
+      privateNamesMap,
+      file
+    } = this;
+    const {
+      name
+    } = member.node.property.id;
+    const {
+      id,
+      static: isStatic,
+      method: isMethod,
+      methodId,
+      getId,
+      setId
+    } = privateNamesMap.get(name);
+    const isAccessor = getId || setId;
+
+    if (isStatic) {
+      const helperName = isMethod && !isAccessor ? "classStaticPrivateMethodGet" : "classStaticPrivateFieldSpecGet";
+      return _core.types.callExpression(file.addHelper(helperName), [this.receiver(member), _core.types.cloneNode(classRef), _core.types.cloneNode(id)]);
+    }
+
+    if (isMethod) {
+      if (isAccessor) {
+        if (!getId && setId) {
+          if (file.availableHelper("writeOnlyError")) {
+            return _core.types.sequenceExpression([this.receiver(member), _core.types.callExpression(file.addHelper("writeOnlyError"), [_core.types.stringLiteral(`#${name}`)])]);
+          }
+
+          console.warn(`@babel/helpers is outdated, update it to silence this warning.`);
+        }
+
+        return _core.types.callExpression(file.addHelper("classPrivateFieldGet"), [this.receiver(member), _core.types.cloneNode(id)]);
+      }
+
+      return _core.types.callExpression(file.addHelper("classPrivateMethodGet"), [this.receiver(member), _core.types.cloneNode(id), _core.types.cloneNode(methodId)]);
+    }
+
+    return _core.types.callExpression(file.addHelper("classPrivateFieldGet"), [this.receiver(member), _core.types.cloneNode(id)]);
+  },
+
+  boundGet(member) {
+    this.memoise(member, 1);
+    return _core.types.callExpression(_core.types.memberExpression(this.get(member), _core.types.identifier("bind")), [this.receiver(member)]);
+  },
+
+  set(member, value) {
+    const {
+      classRef,
+      privateNamesMap,
+      file
+    } = this;
+    const {
+      name
+    } = member.node.property.id;
+    const {
+      id,
+      static: isStatic,
+      method: isMethod,
+      setId,
+      getId
+    } = privateNamesMap.get(name);
+    const isAccessor = getId || setId;
+
+    if (isStatic) {
+      const helperName = isMethod && !isAccessor ? "classStaticPrivateMethodSet" : "classStaticPrivateFieldSpecSet";
+      return _core.types.callExpression(file.addHelper(helperName), [this.receiver(member), _core.types.cloneNode(classRef), _core.types.cloneNode(id), value]);
+    }
+
+    if (isMethod) {
+      if (setId) {
+        return _core.types.callExpression(file.addHelper("classPrivateFieldSet"), [this.receiver(member), _core.types.cloneNode(id), value]);
+      }
+
+      return _core.types.sequenceExpression([this.receiver(member), value, _core.types.callExpression(file.addHelper("readOnlyError"), [_core.types.stringLiteral(`#${name}`)])]);
+    }
+
+    return _core.types.callExpression(file.addHelper("classPrivateFieldSet"), [this.receiver(member), _core.types.cloneNode(id), value]);
+  },
+
+  destructureSet(member) {
+    const {
+      classRef,
+      privateNamesMap,
+      file
+    } = this;
+    const {
+      name
+    } = member.node.property.id;
+    const {
+      id,
+      static: isStatic
+    } = privateNamesMap.get(name);
+
+    if (isStatic) {
+      try {
+        var helper = file.addHelper("classStaticPrivateFieldDestructureSet");
+      } catch (_unused) {
+        throw new Error("Babel can not transpile `[C.#p] = [0]` with @babel/helpers < 7.13.10, \n" + "please update @babel/helpers to the latest version.");
+      }
+
+      return _core.types.memberExpression(_core.types.callExpression(helper, [this.receiver(member), _core.types.cloneNode(classRef), _core.types.cloneNode(id)]), _core.types.identifier("value"));
+    }
+
+    return _core.types.memberExpression(_core.types.callExpression(file.addHelper("classPrivateFieldDestructureSet"), [this.receiver(member), _core.types.cloneNode(id)]), _core.types.identifier("value"));
+  },
+
+  call(member, args) {
+    this.memoise(member, 1);
+    return (0, _helperOptimiseCallExpression.default)(this.get(member), this.receiver(member), args, false);
+  },
+
+  optionalCall(member, args) {
+    this.memoise(member, 1);
+    return (0, _helperOptimiseCallExpression.default)(this.get(member), this.receiver(member), args, true);
+  }
+
+};
+const privateNameHandlerLoose = {
+  get(member) {
+    const {
+      privateNamesMap,
+      file
+    } = this;
+    const {
+      object
+    } = member.node;
+    const {
+      name
+    } = member.node.property.id;
+    return _core.template.expression`BASE(REF, PROP)[PROP]`({
+      BASE: file.addHelper("classPrivateFieldLooseBase"),
+      REF: _core.types.cloneNode(object),
+      PROP: _core.types.cloneNode(privateNamesMap.get(name).id)
+    });
+  },
+
+  set() {
+    throw new Error("private name handler with loose = true don't need set()");
+  },
+
+  boundGet(member) {
+    return _core.types.callExpression(_core.types.memberExpression(this.get(member), _core.types.identifier("bind")), [_core.types.cloneNode(member.node.object)]);
+  },
+
+  simpleSet(member) {
+    return this.get(member);
+  },
+
+  destructureSet(member) {
+    return this.get(member);
+  },
+
+  call(member, args) {
+    return _core.types.callExpression(this.get(member), args);
+  },
+
+  optionalCall(member, args) {
+    return _core.types.optionalCallExpression(this.get(member), args, true);
+  }
+
+};
+
+function transformPrivateNamesUsage(ref, path, privateNamesMap, {
+  privateFieldsAsProperties,
+  noDocumentAll
+}, state) {
+  if (!privateNamesMap.size) return;
+  const body = path.get("body");
+  const handler = privateFieldsAsProperties ? privateNameHandlerLoose : privateNameHandlerSpec;
+  (0, _helperMemberExpressionToFunctions.default)(body, privateNameVisitor, Object.assign({
+    privateNamesMap,
+    classRef: ref,
+    file: state
+  }, handler, {
+    noDocumentAll
+  }));
+  body.traverse(privateInVisitor, {
+    privateNamesMap,
+    classRef: ref,
+    file: state,
+    privateFieldsAsProperties
+  });
+}
+
+function buildPrivateFieldInitLoose(ref, prop, privateNamesMap) {
+  const {
+    id
+  } = privateNamesMap.get(prop.node.key.id.name);
+  const value = prop.node.value || prop.scope.buildUndefinedNode();
+  return _core.template.statement.ast`
+    Object.defineProperty(${ref}, ${_core.types.cloneNode(id)}, {
+      // configurable is false by default
+      // enumerable is false by default
+      writable: true,
+      value: ${value}
+    });
+  `;
+}
+
+function buildPrivateInstanceFieldInitSpec(ref, prop, privateNamesMap) {
+  const {
+    id
+  } = privateNamesMap.get(prop.node.key.id.name);
+  const value = prop.node.value || prop.scope.buildUndefinedNode();
+  return _core.template.statement.ast`${_core.types.cloneNode(id)}.set(${ref}, {
+    // configurable is always false for private elements
+    // enumerable is always false for private elements
+    writable: true,
+    value: ${value},
+  })`;
+}
+
+function buildPrivateStaticFieldInitSpec(prop, privateNamesMap) {
+  const privateName = privateNamesMap.get(prop.node.key.id.name);
+  const {
+    id,
+    getId,
+    setId,
+    initAdded
+  } = privateName;
+  const isAccessor = getId || setId;
+  if (!prop.isProperty() && (initAdded || !isAccessor)) return;
+
+  if (isAccessor) {
+    privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {
+      initAdded: true
+    }));
+    return _core.template.statement.ast`
+      var ${_core.types.cloneNode(id)} = {
+        // configurable is false by default
+        // enumerable is false by default
+        // writable is false by default
+        get: ${getId ? getId.name : prop.scope.buildUndefinedNode()},
+        set: ${setId ? setId.name : prop.scope.buildUndefinedNode()}
+      }
+    `;
+  }
+
+  const value = prop.node.value || prop.scope.buildUndefinedNode();
+  return _core.template.statement.ast`
+    var ${_core.types.cloneNode(id)} = {
+      // configurable is false by default
+      // enumerable is false by default
+      writable: true,
+      value: ${value}
+    };
+  `;
+}
+
+function buildPrivateMethodInitLoose(ref, prop, privateNamesMap) {
+  const privateName = privateNamesMap.get(prop.node.key.id.name);
+  const {
+    methodId,
+    id,
+    getId,
+    setId,
+    initAdded
+  } = privateName;
+  if (initAdded) return;
+
+  if (methodId) {
+    return _core.template.statement.ast`
+        Object.defineProperty(${ref}, ${id}, {
+          // configurable is false by default
+          // enumerable is false by default
+          // writable is false by default
+          value: ${methodId.name}
+        });
+      `;
+  }
+
+  const isAccessor = getId || setId;
+
+  if (isAccessor) {
+    privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {
+      initAdded: true
+    }));
+    return _core.template.statement.ast`
+      Object.defineProperty(${ref}, ${id}, {
+        // configurable is false by default
+        // enumerable is false by default
+        // writable is false by default
+        get: ${getId ? getId.name : prop.scope.buildUndefinedNode()},
+        set: ${setId ? setId.name : prop.scope.buildUndefinedNode()}
+      });
+    `;
+  }
+}
+
+function buildPrivateInstanceMethodInitSpec(ref, prop, privateNamesMap) {
+  const privateName = privateNamesMap.get(prop.node.key.id.name);
+  const {
+    id,
+    getId,
+    setId,
+    initAdded
+  } = privateName;
+  if (initAdded) return;
+  const isAccessor = getId || setId;
+
+  if (isAccessor) {
+    privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {
+      initAdded: true
+    }));
+    return _core.template.statement.ast`
+      ${id}.set(${ref}, {
+        get: ${getId ? getId.name : prop.scope.buildUndefinedNode()},
+        set: ${setId ? setId.name : prop.scope.buildUndefinedNode()}
+      });
+    `;
+  }
+
+  return _core.template.statement.ast`${id}.add(${ref})`;
+}
+
+function buildPublicFieldInitLoose(ref, prop) {
+  const {
+    key,
+    computed
+  } = prop.node;
+  const value = prop.node.value || prop.scope.buildUndefinedNode();
+  return _core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.memberExpression(ref, key, computed || _core.types.isLiteral(key)), value));
+}
+
+function buildPublicFieldInitSpec(ref, prop, state) {
+  const {
+    key,
+    computed
+  } = prop.node;
+  const value = prop.node.value || prop.scope.buildUndefinedNode();
+  return _core.types.expressionStatement(_core.types.callExpression(state.addHelper("defineProperty"), [ref, computed || _core.types.isLiteral(key) ? key : _core.types.stringLiteral(key.name), value]));
+}
+
+function buildPrivateStaticMethodInitLoose(ref, prop, state, privateNamesMap) {
+  const privateName = privateNamesMap.get(prop.node.key.id.name);
+  const {
+    id,
+    methodId,
+    getId,
+    setId,
+    initAdded
+  } = privateName;
+  if (initAdded) return;
+  const isAccessor = getId || setId;
+
+  if (isAccessor) {
+    privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {
+      initAdded: true
+    }));
+    return _core.template.statement.ast`
+      Object.defineProperty(${ref}, ${id}, {
+        // configurable is false by default
+        // enumerable is false by default
+        // writable is false by default
+        get: ${getId ? getId.name : prop.scope.buildUndefinedNode()},
+        set: ${setId ? setId.name : prop.scope.buildUndefinedNode()}
+      })
+    `;
+  }
+
+  return _core.template.statement.ast`
+    Object.defineProperty(${ref}, ${id}, {
+      // configurable is false by default
+      // enumerable is false by default
+      // writable is false by default
+      value: ${methodId.name}
+    });
+  `;
+}
+
+function buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties = false) {
+  const privateName = privateNamesMap.get(prop.node.key.id.name);
+  const {
+    id,
+    methodId,
+    getId,
+    setId,
+    getterDeclared,
+    setterDeclared,
+    static: isStatic
+  } = privateName;
+  const {
+    params,
+    body,
+    generator,
+    async
+  } = prop.node;
+  const isGetter = getId && !getterDeclared && params.length === 0;
+  const isSetter = setId && !setterDeclared && params.length > 0;
+  let declId = methodId;
+
+  if (isGetter) {
+    privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {
+      getterDeclared: true
+    }));
+    declId = getId;
+  } else if (isSetter) {
+    privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {
+      setterDeclared: true
+    }));
+    declId = setId;
+  } else if (isStatic && !privateFieldsAsProperties) {
+    declId = id;
+  }
+
+  return _core.types.functionDeclaration(_core.types.cloneNode(declId), params, body, generator, async);
+}
+
+const thisContextVisitor = _core.traverse.visitors.merge([{
+  ThisExpression(path, state) {
+    state.needsClassRef = true;
+    path.replaceWith(_core.types.cloneNode(state.classRef));
+  },
+
+  MetaProperty(path) {
+    const meta = path.get("meta");
+    const property = path.get("property");
+    const {
+      scope
+    } = path;
+
+    if (meta.isIdentifier({
+      name: "new"
+    }) && property.isIdentifier({
+      name: "target"
+    })) {
+      path.replaceWith(scope.buildUndefinedNode());
+    }
+  }
+
+}, _helperReplaceSupers.environmentVisitor]);
+
+const innerReferencesVisitor = {
+  ReferencedIdentifier(path, state) {
+    if (path.scope.bindingIdentifierEquals(path.node.name, state.innerBinding)) {
+      state.needsClassRef = true;
+      path.node.name = state.classRef.name;
+    }
+  }
+
+};
+
+function replaceThisContext(path, ref, getSuperRef, file, isStaticBlock, constantSuper, innerBindingRef) {
+  var _state$classRef;
+
+  const state = {
+    classRef: ref,
+    needsClassRef: false,
+    innerBinding: innerBindingRef
+  };
+  const replacer = new _helperReplaceSupers.default({
+    methodPath: path,
+    constantSuper,
+    file,
+    refToPreserve: ref,
+    getSuperRef,
+
+    getObjectRef() {
+      state.needsClassRef = true;
+      return isStaticBlock || path.node.static ? ref : _core.types.memberExpression(ref, _core.types.identifier("prototype"));
+    }
+
+  });
+  replacer.replace();
+
+  if (isStaticBlock || path.isProperty()) {
+    path.traverse(thisContextVisitor, state);
+  }
+
+  if ((_state$classRef = state.classRef) != null && _state$classRef.name && state.classRef.name !== (innerBindingRef == null ? void 0 : innerBindingRef.name)) {
+    path.traverse(innerReferencesVisitor, state);
+  }
+
+  return state.needsClassRef;
+}
+
+function buildFieldsInitNodes(ref, superRef, props, privateNamesMap, state, setPublicClassFields, privateFieldsAsProperties, constantSuper, innerBindingRef) {
+  let needsClassRef = false;
+  let injectSuperRef;
+  const staticNodes = [];
+  const instanceNodes = [];
+  const pureStaticNodes = [];
+  const getSuperRef = _core.types.isIdentifier(superRef) ? () => superRef : () => {
+    var _injectSuperRef;
+
+    (_injectSuperRef = injectSuperRef) != null ? _injectSuperRef : injectSuperRef = props[0].scope.generateUidIdentifierBasedOnNode(superRef);
+    return injectSuperRef;
+  };
+
+  for (const prop of props) {
+    prop.isClassProperty() && ts.assertFieldTransformed(prop);
+    const isStatic = prop.node.static;
+    const isInstance = !isStatic;
+    const isPrivate = prop.isPrivate();
+    const isPublic = !isPrivate;
+    const isField = prop.isProperty();
+    const isMethod = !isField;
+    const isStaticBlock = prop.isStaticBlock == null ? void 0 : prop.isStaticBlock();
+
+    if (isStatic || isMethod && isPrivate || isStaticBlock) {
+      const replaced = replaceThisContext(prop, ref, getSuperRef, state, isStaticBlock, constantSuper, innerBindingRef);
+      needsClassRef = needsClassRef || replaced;
+    }
+
+    switch (true) {
+      case isStaticBlock:
+        staticNodes.push(_core.template.statement.ast`(() => ${_core.types.blockStatement(prop.node.body)})()`);
+        break;
+
+      case isStatic && isPrivate && isField && privateFieldsAsProperties:
+        needsClassRef = true;
+        staticNodes.push(buildPrivateFieldInitLoose(_core.types.cloneNode(ref), prop, privateNamesMap));
+        break;
+
+      case isStatic && isPrivate && isField && !privateFieldsAsProperties:
+        needsClassRef = true;
+        staticNodes.push(buildPrivateStaticFieldInitSpec(prop, privateNamesMap));
+        break;
+
+      case isStatic && isPublic && isField && setPublicClassFields:
+        needsClassRef = true;
+        staticNodes.push(buildPublicFieldInitLoose(_core.types.cloneNode(ref), prop));
+        break;
+
+      case isStatic && isPublic && isField && !setPublicClassFields:
+        needsClassRef = true;
+        staticNodes.push(buildPublicFieldInitSpec(_core.types.cloneNode(ref), prop, state));
+        break;
+
+      case isInstance && isPrivate && isField && privateFieldsAsProperties:
+        instanceNodes.push(buildPrivateFieldInitLoose(_core.types.thisExpression(), prop, privateNamesMap));
+        break;
+
+      case isInstance && isPrivate && isField && !privateFieldsAsProperties:
+        instanceNodes.push(buildPrivateInstanceFieldInitSpec(_core.types.thisExpression(), prop, privateNamesMap));
+        break;
+
+      case isInstance && isPrivate && isMethod && privateFieldsAsProperties:
+        instanceNodes.unshift(buildPrivateMethodInitLoose(_core.types.thisExpression(), prop, privateNamesMap));
+        pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
+        break;
+
+      case isInstance && isPrivate && isMethod && !privateFieldsAsProperties:
+        instanceNodes.unshift(buildPrivateInstanceMethodInitSpec(_core.types.thisExpression(), prop, privateNamesMap));
+        pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
+        break;
+
+      case isStatic && isPrivate && isMethod && !privateFieldsAsProperties:
+        needsClassRef = true;
+        staticNodes.unshift(buildPrivateStaticFieldInitSpec(prop, privateNamesMap));
+        pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
+        break;
+
+      case isStatic && isPrivate && isMethod && privateFieldsAsProperties:
+        needsClassRef = true;
+        staticNodes.unshift(buildPrivateStaticMethodInitLoose(_core.types.cloneNode(ref), prop, state, privateNamesMap));
+        pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
+        break;
+
+      case isInstance && isPublic && isField && setPublicClassFields:
+        instanceNodes.push(buildPublicFieldInitLoose(_core.types.thisExpression(), prop));
+        break;
+
+      case isInstance && isPublic && isField && !setPublicClassFields:
+        instanceNodes.push(buildPublicFieldInitSpec(_core.types.thisExpression(), prop, state));
+        break;
+
+      default:
+        throw new Error("Unreachable.");
+    }
+  }
+
+  return {
+    staticNodes: staticNodes.filter(Boolean),
+    instanceNodes: instanceNodes.filter(Boolean),
+    pureStaticNodes: pureStaticNodes.filter(Boolean),
+
+    wrapClass(path) {
+      for (const prop of props) {
+        prop.remove();
+      }
+
+      if (injectSuperRef) {
+        path.scope.push({
+          id: _core.types.cloneNode(injectSuperRef)
+        });
+        path.set("superClass", _core.types.assignmentExpression("=", injectSuperRef, path.node.superClass));
+      }
+
+      if (!needsClassRef) return path;
+
+      if (path.isClassExpression()) {
+        path.scope.push({
+          id: ref
+        });
+        path.replaceWith(_core.types.assignmentExpression("=", _core.types.cloneNode(ref), path.node));
+      } else if (!path.node.id) {
+        path.node.id = ref;
+      }
+
+      return path;
+    }
+
+  };
+}

web/node_modules/@babel/helper-create-class-features-plugin/lib/index.js

@@ -0,0 +1,231 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.createClassFeaturePlugin = createClassFeaturePlugin;
+Object.defineProperty(exports, "injectInitialization", {
+  enumerable: true,
+  get: function () {
+    return _misc.injectInitialization;
+  }
+});
+Object.defineProperty(exports, "enableFeature", {
+  enumerable: true,
+  get: function () {
+    return _features.enableFeature;
+  }
+});
+Object.defineProperty(exports, "FEATURES", {
+  enumerable: true,
+  get: function () {
+    return _features.FEATURES;
+  }
+});
+
+var _core = require("@babel/core");
+
+var _helperFunctionName = require("@babel/helper-function-name");
+
+var _helperSplitExportDeclaration = require("@babel/helper-split-export-declaration");
+
+var _fields = require("./fields");
+
+var _decorators = require("./decorators");
+
+var _misc = require("./misc");
+
+var _features = require("./features");
+
+const version = "7.15.0".split(".").reduce((v, x) => v * 1e5 + +x, 0);
+const versionKey = "@babel/plugin-class-features/version";
+
+function createClassFeaturePlugin({
+  name,
+  feature,
+  loose,
+  manipulateOptions,
+  api = {
+    assumption: () => void 0
+  }
+}) {
+  const setPublicClassFields = api.assumption("setPublicClassFields");
+  const privateFieldsAsProperties = api.assumption("privateFieldsAsProperties");
+  const constantSuper = api.assumption("constantSuper");
+  const noDocumentAll = api.assumption("noDocumentAll");
+
+  if (loose === true) {
+    const explicit = [];
+
+    if (setPublicClassFields !== undefined) {
+      explicit.push(`"setPublicClassFields"`);
+    }
+
+    if (privateFieldsAsProperties !== undefined) {
+      explicit.push(`"privateFieldsAsProperties"`);
+    }
+
+    if (explicit.length !== 0) {
+      console.warn(`[${name}]: You are using the "loose: true" option and you are` + ` explicitly setting a value for the ${explicit.join(" and ")}` + ` assumption${explicit.length > 1 ? "s" : ""}. The "loose" option` + ` can cause incompatibilities with the other class features` + ` plugins, so it's recommended that you replace it with the` + ` following top-level option:\n` + `\t"assumptions": {\n` + `\t\t"setPublicClassFields": true,\n` + `\t\t"privateFieldsAsProperties": true\n` + `\t}`);
+    }
+  }
+
+  return {
+    name,
+    manipulateOptions,
+
+    pre() {
+      (0, _features.enableFeature)(this.file, feature, loose);
+
+      if (!this.file.get(versionKey) || this.file.get(versionKey) < version) {
+        this.file.set(versionKey, version);
+      }
+    },
+
+    visitor: {
+      Class(path, state) {
+        if (this.file.get(versionKey) !== version) return;
+        (0, _features.verifyUsedFeatures)(path, this.file);
+        const loose = (0, _features.isLoose)(this.file, feature);
+        let constructor;
+        const isDecorated = (0, _decorators.hasDecorators)(path.node);
+        const props = [];
+        const elements = [];
+        const computedPaths = [];
+        const privateNames = new Set();
+        const body = path.get("body");
+
+        for (const path of body.get("body")) {
+          (0, _features.verifyUsedFeatures)(path, this.file);
+
+          if ((path.isClassProperty() || path.isClassMethod()) && path.node.computed) {
+            computedPaths.push(path);
+          }
+
+          if (path.isPrivate()) {
+            const {
+              name
+            } = path.node.key.id;
+            const getName = `get ${name}`;
+            const setName = `set ${name}`;
+
+            if (path.isClassPrivateMethod()) {
+              if (path.node.kind === "get") {
+                if (privateNames.has(getName) || privateNames.has(name) && !privateNames.has(setName)) {
+                  throw path.buildCodeFrameError("Duplicate private field");
+                }
+
+                privateNames.add(getName).add(name);
+              } else if (path.node.kind === "set") {
+                if (privateNames.has(setName) || privateNames.has(name) && !privateNames.has(getName)) {
+                  throw path.buildCodeFrameError("Duplicate private field");
+                }
+
+                privateNames.add(setName).add(name);
+              }
+            } else {
+              if (privateNames.has(name) && !privateNames.has(getName) && !privateNames.has(setName) || privateNames.has(name) && (privateNames.has(getName) || privateNames.has(setName))) {
+                throw path.buildCodeFrameError("Duplicate private field");
+              }
+
+              privateNames.add(name);
+            }
+          }
+
+          if (path.isClassMethod({
+            kind: "constructor"
+          })) {
+            constructor = path;
+          } else {
+            elements.push(path);
+
+            if (path.isProperty() || path.isPrivate() || path.isStaticBlock != null && path.isStaticBlock()) {
+              props.push(path);
+            }
+          }
+        }
+
+        if (!props.length && !isDecorated) return;
+        const innerBinding = path.node.id;
+        let ref;
+
+        if (!innerBinding || path.isClassExpression()) {
+          (0, _helperFunctionName.default)(path);
+          ref = path.scope.generateUidIdentifier("class");
+        } else {
+          ref = _core.types.cloneNode(path.node.id);
+        }
+
+        const privateNamesMap = (0, _fields.buildPrivateNamesMap)(props);
+        const privateNamesNodes = (0, _fields.buildPrivateNamesNodes)(privateNamesMap, privateFieldsAsProperties != null ? privateFieldsAsProperties : loose, state);
+        (0, _fields.transformPrivateNamesUsage)(ref, path, privateNamesMap, {
+          privateFieldsAsProperties: privateFieldsAsProperties != null ? privateFieldsAsProperties : loose,
+          noDocumentAll
+        }, state);
+        let keysNodes, staticNodes, instanceNodes, pureStaticNodes, wrapClass;
+
+        if (isDecorated) {
+          staticNodes = pureStaticNodes = keysNodes = [];
+          ({
+            instanceNodes,
+            wrapClass
+          } = (0, _decorators.buildDecoratedClass)(ref, path, elements, this.file));
+        } else {
+          keysNodes = (0, _misc.extractComputedKeys)(ref, path, computedPaths, this.file);
+          ({
+            staticNodes,
+            pureStaticNodes,
+            instanceNodes,
+            wrapClass
+          } = (0, _fields.buildFieldsInitNodes)(ref, path.node.superClass, props, privateNamesMap, state, setPublicClassFields != null ? setPublicClassFields : loose, privateFieldsAsProperties != null ? privateFieldsAsProperties : loose, constantSuper != null ? constantSuper : loose, innerBinding));
+        }
+
+        if (instanceNodes.length > 0) {
+          (0, _misc.injectInitialization)(path, constructor, instanceNodes, (referenceVisitor, state) => {
+            if (isDecorated) return;
+
+            for (const prop of props) {
+              if (prop.node.static) continue;
+              prop.traverse(referenceVisitor, state);
+            }
+          });
+        }
+
+        const wrappedPath = wrapClass(path);
+        wrappedPath.insertBefore([...privateNamesNodes, ...keysNodes]);
+
+        if (staticNodes.length > 0) {
+          wrappedPath.insertAfter(staticNodes);
+        }
+
+        if (pureStaticNodes.length > 0) {
+          wrappedPath.find(parent => parent.isStatement() || parent.isDeclaration()).insertAfter(pureStaticNodes);
+        }
+      },
+
+      PrivateName(path) {
+        if (this.file.get(versionKey) !== version || path.parentPath.isPrivate({
+          key: path.node
+        })) {
+          return;
+        }
+
+        throw path.buildCodeFrameError(`Unknown PrivateName "${path}"`);
+      },
+
+      ExportDefaultDeclaration(path) {
+        if (this.file.get(versionKey) !== version) return;
+        const decl = path.get("declaration");
+
+        if (decl.isClassDeclaration() && (0, _decorators.hasDecorators)(decl.node)) {
+          if (decl.node.id) {
+            (0, _helperSplitExportDeclaration.default)(path);
+          } else {
+            decl.node.type = "ClassExpression";
+          }
+        }
+      }
+
+    }
+  };
+}

web/node_modules/@babel/helper-create-class-features-plugin/lib/misc.js

@@ -0,0 +1,127 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.injectInitialization = injectInitialization;
+exports.extractComputedKeys = extractComputedKeys;
+
+var _core = require("@babel/core");
+
+var _helperReplaceSupers = require("@babel/helper-replace-supers");
+
+const findBareSupers = _core.traverse.visitors.merge([{
+  Super(path) {
+    const {
+      node,
+      parentPath
+    } = path;
+
+    if (parentPath.isCallExpression({
+      callee: node
+    })) {
+      this.push(parentPath);
+    }
+  }
+
+}, _helperReplaceSupers.environmentVisitor]);
+
+const referenceVisitor = {
+  "TSTypeAnnotation|TypeAnnotation"(path) {
+    path.skip();
+  },
+
+  ReferencedIdentifier(path) {
+    if (this.scope.hasOwnBinding(path.node.name)) {
+      this.scope.rename(path.node.name);
+      path.skip();
+    }
+  }
+
+};
+
+function handleClassTDZ(path, state) {
+  if (state.classBinding && state.classBinding === path.scope.getBinding(path.node.name)) {
+    const classNameTDZError = state.file.addHelper("classNameTDZError");
+
+    const throwNode = _core.types.callExpression(classNameTDZError, [_core.types.stringLiteral(path.node.name)]);
+
+    path.replaceWith(_core.types.sequenceExpression([throwNode, path.node]));
+    path.skip();
+  }
+}
+
+const classFieldDefinitionEvaluationTDZVisitor = {
+  ReferencedIdentifier: handleClassTDZ
+};
+
+function injectInitialization(path, constructor, nodes, renamer) {
+  if (!nodes.length) return;
+  const isDerived = !!path.node.superClass;
+
+  if (!constructor) {
+    const newConstructor = _core.types.classMethod("constructor", _core.types.identifier("constructor"), [], _core.types.blockStatement([]));
+
+    if (isDerived) {
+      newConstructor.params = [_core.types.restElement(_core.types.identifier("args"))];
+      newConstructor.body.body.push(_core.template.statement.ast`super(...args)`);
+    }
+
+    [constructor] = path.get("body").unshiftContainer("body", newConstructor);
+  }
+
+  if (renamer) {
+    renamer(referenceVisitor, {
+      scope: constructor.scope
+    });
+  }
+
+  if (isDerived) {
+    const bareSupers = [];
+    constructor.traverse(findBareSupers, bareSupers);
+    let isFirst = true;
+
+    for (const bareSuper of bareSupers) {
+      if (isFirst) {
+        bareSuper.insertAfter(nodes);
+        isFirst = false;
+      } else {
+        bareSuper.insertAfter(nodes.map(n => _core.types.cloneNode(n)));
+      }
+    }
+  } else {
+    constructor.get("body").unshiftContainer("body", nodes);
+  }
+}
+
+function extractComputedKeys(ref, path, computedPaths, file) {
+  const declarations = [];
+  const state = {
+    classBinding: path.node.id && path.scope.getBinding(path.node.id.name),
+    file
+  };
+
+  for (const computedPath of computedPaths) {
+    const computedKey = computedPath.get("key");
+
+    if (computedKey.isReferencedIdentifier()) {
+      handleClassTDZ(computedKey, state);
+    } else {
+      computedKey.traverse(classFieldDefinitionEvaluationTDZVisitor, state);
+    }
+
+    const computedNode = computedPath.node;
+
+    if (!computedKey.isConstantExpression()) {
+      const ident = path.scope.generateUidIdentifierBasedOnNode(computedNode.key);
+      path.scope.push({
+        id: ident,
+        kind: "let"
+      });
+      declarations.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.cloneNode(ident), computedNode.key)));
+      computedNode.key = _core.types.cloneNode(ident);
+    }
+  }
+
+  return declarations;
+}

web/node_modules/@babel/helper-create-class-features-plugin/lib/typescript.js

@@ -0,0 +1,12 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.assertFieldTransformed = assertFieldTransformed;
+
+function assertFieldTransformed(path) {
+  if (path.node.declare) {
+    throw path.buildCodeFrameError(`TypeScript 'declare' fields must first be transformed by ` + `@babel/plugin-transform-typescript.\n` + `If you have already enabled that plugin (or '@babel/preset-typescript'), make sure ` + `that it runs before any plugin related to additional class features:\n` + ` - @babel/plugin-proposal-class-properties\n` + ` - @babel/plugin-proposal-private-methods\n` + ` - @babel/plugin-proposal-decorators`);
+  }
+}

web/node_modules/@babel/helper-create-class-features-plugin/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "@babel/helper-create-class-features-plugin",
+  "version": "7.15.0",
+  "author": "The Babel Team (https://babel.dev/team)",
+  "license": "MIT",
+  "description": "Compile class public and private fields, private methods and decorators to ES6",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/babel/babel.git",
+    "directory": "packages/babel-helper-create-class-features-plugin"
+  },
+  "main": "./lib/index.js",
+  "publishConfig": {
+    "access": "public"
+  },
+  "keywords": [
+    "babel",
+    "babel-plugin"
+  ],
+  "dependencies": {
+    "@babel/helper-annotate-as-pure": "^7.14.5",
+    "@babel/helper-function-name": "^7.14.5",
+    "@babel/helper-member-expression-to-functions": "^7.15.0",
+    "@babel/helper-optimise-call-expression": "^7.14.5",
+    "@babel/helper-replace-supers": "^7.15.0",
+    "@babel/helper-split-export-declaration": "^7.14.5"
+  },
+  "peerDependencies": {
+    "@babel/core": "^7.0.0"
+  },
+  "devDependencies": {
+    "@babel/core": "7.15.0",
+    "@babel/helper-plugin-test-runner": "7.14.5",
+    "@babel/preset-env": "7.15.0"
+  },
+  "engines": {
+    "node": ">=6.9.0"
+  }
+}