From 740f68378fabb824376afe95aeb63ca047135bd2 Mon Sep 17 00:00:00 2001
From: JustOff <Off.Just.Off@gmail.com>
Date: Wed, 13 Mar 2019 18:52:13 +0200
Subject: [PATCH] Disallow mozmap-typed constants

---
 dom/bindings/parser/WebIDL.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dom/bindings/parser/WebIDL.py b/dom/bindings/parser/WebIDL.py
index f668d7d622..7d06dbcecf 100644
--- a/dom/bindings/parser/WebIDL.py
+++ b/dom/bindings/parser/WebIDL.py
@@ -3843,6 +3843,9 @@ class IDLConst(IDLInterfaceMember):
         if type.isDictionary():
             raise WebIDLError("A constant cannot be of a dictionary type",
                               [self.location])
+        if type.isMozMap():
+            raise WebIDLError("A constant cannot be of a MozMap type",
+                              [self.location])
         self.type = type
         self.value = value