1 files changed, 48 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/lazy-getter-object-name.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/lazy-getter-object-name.js
new file mode 100644
index 0000000000..2bacac3904
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/lazy-getter-object-name.js
@@ -0,0 +1,48 @@
+/**
+ * @fileoverview Enforce the standard object name for
+ * ChromeUtils.defineESModuleGetters
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+function isIdentifier(node, id) {
+  return node.type === "Identifier" && node.name === id;
+}
+
+module.exports = {
+  meta: {
+    docs: {
+      url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/lazy-getter-object-name.html",
+    },
+    messages: {
+      mustUseLazy:
+        "The variable name of the object passed to ChromeUtils.defineESModuleGetters must be `lazy`",
+    },
+    schema: [],
+    type: "problem",
+  },
+
+  create(context) {
+    return {
+      CallExpression(node) {
+        let { callee } = node;
+        if (
+          callee.type === "MemberExpression" &&
+          isIdentifier(callee.object, "ChromeUtils") &&
+          isIdentifier(callee.property, "defineESModuleGetters") &&
+          node.arguments.length >= 1 &&
+          !isIdentifier(node.arguments[0], "lazy")
+        ) {
+          context.report({
+            node,
+            messageId: "mustUseLazy",
+          });
+        }
+      },
+    };
+  },
+};