Updated the files.

my-app/node_modules/@babel/plugin-transform-for-of/lib/index.js

@@ -0,0 +1,194 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _core = require("@babel/core");
+var _noHelperImplementation = require("./no-helper-implementation.js");
+var _helperSkipTransparentExpressionWrappers = require("@babel/helper-skip-transparent-expression-wrappers");
+function buildLoopBody(path, declar, newBody) {
+  let block;
+  const bodyPath = path.get("body");
+  const body = newBody != null ? newBody : bodyPath.node;
+  if (_core.types.isBlockStatement(body) && Object.keys(path.getBindingIdentifiers()).some(id => bodyPath.scope.hasOwnBinding(id))) {
+    block = _core.types.blockStatement([declar, body]);
+  } else {
+    block = _core.types.toBlock(body);
+    block.body.unshift(declar);
+  }
+  return block;
+}
+var _default = exports.default = (0, _helperPluginUtils.declare)((api, options) => {
+  var _options$assumeArray, _options$allowArrayLi, _api$assumption;
+  api.assertVersion(7);
+  {
+    const {
+      assumeArray,
+      allowArrayLike,
+      loose
+    } = options;
+    if (loose === true && assumeArray === true) {
+      throw new Error(`The loose and assumeArray options cannot be used together in @babel/plugin-transform-for-of`);
+    }
+    if (assumeArray === true && allowArrayLike === true) {
+      throw new Error(`The assumeArray and allowArrayLike options cannot be used together in @babel/plugin-transform-for-of`);
+    }
+    {
+      if (allowArrayLike && /^7\.\d\./.test(api.version)) {
+        throw new Error(`The allowArrayLike is only supported when using @babel/core@^7.10.0`);
+      }
+    }
+  }
+  const iterableIsArray = (_options$assumeArray = options.assumeArray) != null ? _options$assumeArray : !options.loose && api.assumption("iterableIsArray");
+  const arrayLikeIsIterable = (_options$allowArrayLi = options.allowArrayLike) != null ? _options$allowArrayLi : api.assumption("arrayLikeIsIterable");
+  const skipIteratorClosing = (_api$assumption = api.assumption("skipForOfIteratorClosing")) != null ? _api$assumption : options.loose;
+  if (iterableIsArray && arrayLikeIsIterable) {
+    throw new Error(`The "iterableIsArray" and "arrayLikeIsIterable" assumptions are not compatible.`);
+  }
+  if (iterableIsArray) {
+    return {
+      name: "transform-for-of",
+      visitor: {
+        ForOfStatement(path) {
+          const {
+            scope
+          } = path;
+          const {
+            left,
+            await: isAwait
+          } = path.node;
+          if (isAwait) {
+            return;
+          }
+          const right = (0, _helperSkipTransparentExpressionWrappers.skipTransparentExprWrapperNodes)(path.node.right);
+          const i = scope.generateUidIdentifier("i");
+          let array = scope.maybeGenerateMemoised(right, true);
+          if (!array && _core.types.isIdentifier(right) && path.get("body").scope.hasOwnBinding(right.name)) {
+            array = scope.generateUidIdentifier("arr");
+          }
+          const inits = [_core.types.variableDeclarator(i, _core.types.numericLiteral(0))];
+          if (array) {
+            inits.push(_core.types.variableDeclarator(array, right));
+          } else {
+            array = right;
+          }
+          const item = _core.types.memberExpression(_core.types.cloneNode(array), _core.types.cloneNode(i), true);
+          let assignment;
+          if (_core.types.isVariableDeclaration(left)) {
+            assignment = left;
+            assignment.declarations[0].init = item;
+          } else {
+            assignment = _core.types.expressionStatement(_core.types.assignmentExpression("=", left, item));
+          }
+          path.replaceWith(_core.types.forStatement(_core.types.variableDeclaration("let", inits), _core.types.binaryExpression("<", _core.types.cloneNode(i), _core.types.memberExpression(_core.types.cloneNode(array), _core.types.identifier("length"))), _core.types.updateExpression("++", _core.types.cloneNode(i)), buildLoopBody(path, assignment)));
+        }
+      }
+    };
+  }
+  const buildForOfArray = (0, _core.template)`
+    for (var KEY = 0, NAME = ARR; KEY < NAME.length; KEY++) BODY;
+  `;
+  const buildForOfNoIteratorClosing = _core.template.statements`
+    for (var ITERATOR_HELPER = CREATE_ITERATOR_HELPER(OBJECT, ARRAY_LIKE_IS_ITERABLE), STEP_KEY;
+        !(STEP_KEY = ITERATOR_HELPER()).done;) BODY;
+  `;
+  const buildForOf = _core.template.statements`
+    var ITERATOR_HELPER = CREATE_ITERATOR_HELPER(OBJECT, ARRAY_LIKE_IS_ITERABLE), STEP_KEY;
+    try {
+      for (ITERATOR_HELPER.s(); !(STEP_KEY = ITERATOR_HELPER.n()).done;) BODY;
+    } catch (err) {
+      ITERATOR_HELPER.e(err);
+    } finally {
+      ITERATOR_HELPER.f();
+    }
+  `;
+  const builder = skipIteratorClosing ? {
+    build: buildForOfNoIteratorClosing,
+    helper: "createForOfIteratorHelperLoose",
+    getContainer: nodes => nodes
+  } : {
+    build: buildForOf,
+    helper: "createForOfIteratorHelper",
+    getContainer: nodes => nodes[1].block.body
+  };
+  function _ForOfStatementArray(path) {
+    const {
+      node,
+      scope
+    } = path;
+    const right = scope.generateUidIdentifierBasedOnNode(node.right, "arr");
+    const iterationKey = scope.generateUidIdentifier("i");
+    const loop = buildForOfArray({
+      BODY: node.body,
+      KEY: iterationKey,
+      NAME: right,
+      ARR: node.right
+    });
+    _core.types.inherits(loop, node);
+    const iterationValue = _core.types.memberExpression(_core.types.cloneNode(right), _core.types.cloneNode(iterationKey), true);
+    let declar;
+    const left = node.left;
+    if (_core.types.isVariableDeclaration(left)) {
+      left.declarations[0].init = iterationValue;
+      declar = left;
+    } else {
+      declar = _core.types.expressionStatement(_core.types.assignmentExpression("=", left, iterationValue));
+    }
+    loop.body = buildLoopBody(path, declar, loop.body);
+    return loop;
+  }
+  return {
+    name: "transform-for-of",
+    visitor: {
+      ForOfStatement(path, state) {
+        const right = path.get("right");
+        if (right.isArrayExpression() || right.isGenericType("Array") || _core.types.isArrayTypeAnnotation(right.getTypeAnnotation())) {
+          path.replaceWith(_ForOfStatementArray(path));
+          return;
+        }
+        {
+          if (!state.availableHelper(builder.helper)) {
+            (0, _noHelperImplementation.default)(skipIteratorClosing, path, state);
+            return;
+          }
+        }
+        const {
+          node,
+          parent,
+          scope
+        } = path;
+        const left = node.left;
+        let declar;
+        const stepKey = scope.generateUid("step");
+        const stepValue = _core.types.memberExpression(_core.types.identifier(stepKey), _core.types.identifier("value"));
+        if (_core.types.isVariableDeclaration(left)) {
+          declar = _core.types.variableDeclaration(left.kind, [_core.types.variableDeclarator(left.declarations[0].id, stepValue)]);
+        } else {
+          declar = _core.types.expressionStatement(_core.types.assignmentExpression("=", left, stepValue));
+        }
+        const nodes = builder.build({
+          CREATE_ITERATOR_HELPER: state.addHelper(builder.helper),
+          ITERATOR_HELPER: scope.generateUidIdentifier("iterator"),
+          ARRAY_LIKE_IS_ITERABLE: arrayLikeIsIterable ? _core.types.booleanLiteral(true) : null,
+          STEP_KEY: _core.types.identifier(stepKey),
+          OBJECT: node.right,
+          BODY: buildLoopBody(path, declar)
+        });
+        const container = builder.getContainer(nodes);
+        _core.types.inherits(container[0], node);
+        _core.types.inherits(container[0].body, node.body);
+        if (_core.types.isLabeledStatement(parent)) {
+          container[0] = _core.types.labeledStatement(parent.label, container[0]);
+          path.parentPath.replaceWithMultiple(nodes);
+          path.skip();
+        } else {
+          path.replaceWithMultiple(nodes);
+        }
+      }
+    }
+  };
+});
+
+//# sourceMappingURL=index.js.map

my-app/node_modules/@babel/plugin-transform-for-of/lib/no-helper-implementation.js

@@ -0,0 +1,153 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = transformWithoutHelper;
+var _core = require("@babel/core");
+function transformWithoutHelper(loose, path, state) {
+  const pushComputedProps = loose ? pushComputedPropsLoose : pushComputedPropsSpec;
+  const {
+    node
+  } = path;
+  const build = pushComputedProps(path, state);
+  const declar = build.declar;
+  const loop = build.loop;
+  const block = loop.body;
+  path.ensureBlock();
+  if (declar) {
+    block.body.push(declar);
+  }
+  block.body.push(...node.body.body);
+  _core.types.inherits(loop, node);
+  _core.types.inherits(loop.body, node.body);
+  if (build.replaceParent) {
+    path.parentPath.replaceWithMultiple(build.node);
+    path.remove();
+  } else {
+    path.replaceWithMultiple(build.node);
+  }
+}
+const buildForOfLoose = _core.template.statement(`
+  for (var LOOP_OBJECT = OBJECT,
+          IS_ARRAY = Array.isArray(LOOP_OBJECT),
+          INDEX = 0,
+          LOOP_OBJECT = IS_ARRAY ? LOOP_OBJECT : LOOP_OBJECT[Symbol.iterator]();;) {
+    INTERMEDIATE;
+    if (IS_ARRAY) {
+      if (INDEX >= LOOP_OBJECT.length) break;
+      ID = LOOP_OBJECT[INDEX++];
+    } else {
+      INDEX = LOOP_OBJECT.next();
+      if (INDEX.done) break;
+      ID = INDEX.value;
+    }
+  }
+`);
+const buildForOf = _core.template.statements(`
+  var ITERATOR_COMPLETION = true;
+  var ITERATOR_HAD_ERROR_KEY = false;
+  var ITERATOR_ERROR_KEY = undefined;
+  try {
+    for (
+      var ITERATOR_KEY = OBJECT[Symbol.iterator](), STEP_KEY;
+      !(ITERATOR_COMPLETION = (STEP_KEY = ITERATOR_KEY.next()).done);
+      ITERATOR_COMPLETION = true
+    ) {}
+  } catch (err) {
+    ITERATOR_HAD_ERROR_KEY = true;
+    ITERATOR_ERROR_KEY = err;
+  } finally {
+    try {
+      if (!ITERATOR_COMPLETION && ITERATOR_KEY.return != null) {
+        ITERATOR_KEY.return();
+      }
+    } finally {
+      if (ITERATOR_HAD_ERROR_KEY) {
+        throw ITERATOR_ERROR_KEY;
+      }
+    }
+  }
+`);
+function pushComputedPropsLoose(path, state) {
+  const {
+    node,
+    scope,
+    parent
+  } = path;
+  const {
+    left
+  } = node;
+  let declar, id, intermediate;
+  if (_core.types.isIdentifier(left) || _core.types.isPattern(left) || _core.types.isMemberExpression(left)) {
+    id = left;
+    intermediate = null;
+  } else if (_core.types.isVariableDeclaration(left)) {
+    id = scope.generateUidIdentifier("ref");
+    declar = _core.types.variableDeclaration(left.kind, [_core.types.variableDeclarator(left.declarations[0].id, _core.types.identifier(id.name))]);
+    intermediate = _core.types.variableDeclaration("var", [_core.types.variableDeclarator(_core.types.identifier(id.name))]);
+  } else {
+    throw state.buildCodeFrameError(left, `Unknown node type ${left.type} in ForStatement`);
+  }
+  const iteratorKey = scope.generateUidIdentifier("iterator");
+  const isArrayKey = scope.generateUidIdentifier("isArray");
+  const loop = buildForOfLoose({
+    LOOP_OBJECT: iteratorKey,
+    IS_ARRAY: isArrayKey,
+    OBJECT: node.right,
+    INDEX: scope.generateUidIdentifier("i"),
+    ID: id,
+    INTERMEDIATE: intermediate
+  });
+  const isLabeledParent = _core.types.isLabeledStatement(parent);
+  let labeled;
+  if (isLabeledParent) {
+    labeled = _core.types.labeledStatement(parent.label, loop);
+  }
+  return {
+    replaceParent: isLabeledParent,
+    declar: declar,
+    node: labeled || loop,
+    loop: loop
+  };
+}
+function pushComputedPropsSpec(path, state) {
+  const {
+    node,
+    scope,
+    parent
+  } = path;
+  const left = node.left;
+  let declar;
+  const stepKey = scope.generateUid("step");
+  const stepValue = _core.types.memberExpression(_core.types.identifier(stepKey), _core.types.identifier("value"));
+  if (_core.types.isIdentifier(left) || _core.types.isPattern(left) || _core.types.isMemberExpression(left)) {
+    declar = _core.types.expressionStatement(_core.types.assignmentExpression("=", left, stepValue));
+  } else if (_core.types.isVariableDeclaration(left)) {
+    declar = _core.types.variableDeclaration(left.kind, [_core.types.variableDeclarator(left.declarations[0].id, stepValue)]);
+  } else {
+    throw state.buildCodeFrameError(left, `Unknown node type ${left.type} in ForStatement`);
+  }
+  const template = buildForOf({
+    ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"),
+    ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"),
+    ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"),
+    ITERATOR_KEY: scope.generateUidIdentifier("iterator"),
+    STEP_KEY: _core.types.identifier(stepKey),
+    OBJECT: node.right
+  });
+  const isLabeledParent = _core.types.isLabeledStatement(parent);
+  const tryBody = template[3].block.body;
+  const loop = tryBody[0];
+  if (isLabeledParent) {
+    tryBody[0] = _core.types.labeledStatement(parent.label, loop);
+  }
+  return {
+    replaceParent: isLabeledParent,
+    declar: declar,
+    loop: loop,
+    node: template
+  };
+}
+
+//# sourceMappingURL=no-helper-implementation.js.map