From 78ccc39ca916c7738ba56cf50d25b8bfb92dba88 Mon Sep 17 00:00:00 2001
From: Amaan Qureshi <amaanq12@gmail.com>
Date: Sat, 10 Feb 2024 20:05:29 -0500
Subject: [PATCH] fix: properly error out when the word property is an invalid
 rule

---
 cli/src/generate/dsl.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cli/src/generate/dsl.js b/cli/src/generate/dsl.js
index d4ef2f25..0aa367fd 100644
--- a/cli/src/generate/dsl.js
+++ b/cli/src/generate/dsl.js
@@ -310,6 +310,10 @@ function grammar(baseGrammar, options) {
     if (typeof word != 'string') {
       throw new Error("Grammar's 'word' property must be a named rule.");
     }
+
+    if (word === 'ReferenceError') {
+      throw new Error("Grammar's 'word' property must be a valid rule name.");
+    }
   }
 
   let conflicts = baseGrammar.conflicts;