merge new into master

node_modules/hermes-parser/dist/traverse/getVisitorKeys.js

@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * 
+ * @noformat
+ */
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getVisitorKeys = getVisitorKeys;
+exports.isNode = isNode;
+
+var _ESTreeVisitorKeys = _interopRequireDefault(require("../generated/ESTreeVisitorKeys"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function isNode(thing)
+/*: implies thing is {+[string]: mixed} */
+{
+  return typeof thing === 'object' && thing != null && typeof thing.type === 'string';
+}
+
+function getVisitorKeys(node, visitorKeys) {
+  const keys = (visitorKeys != null ? visitorKeys : _ESTreeVisitorKeys.default)[node.type];
+
+  if (keys == null) {
+    throw new Error(`No visitor keys found for node type "${node.type}".`);
+  } // $FlowExpectedError[prop-missing]
+
+
+  return keys;
+}