--- /dev/null
+/**
+ * @fileoverview Rule to flag usage of __iterator__ property
+ * @author Ian Christian Myers
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+ meta: {
+ type: "suggestion",
+
+ docs: {
+ description: "disallow the use of the `__iterator__` property",
+ category: "Best Practices",
+ recommended: false,
+ url: "https://eslint.org/docs/rules/no-iterator"
+ },
+
+ schema: []
+ },
+
+ create(context) {
+
+ return {
+
+ MemberExpression(node) {
+
+ if (node.property &&
+ (node.property.type === "Identifier" && node.property.name === "__iterator__" && !node.computed) ||
+ (node.property.type === "Literal" && node.property.value === "__iterator__")) {
+ context.report({ node, message: "Reserved name '__iterator__'." });
+ }
+ }
+ };
+
+ }
+};