1 files changed, 14 insertions, 0 deletions
diff --git a/dom/webidl/HTMLAllCollection.webidl b/dom/webidl/HTMLAllCollection.webidl
new file mode 100644
index 0000000000..43b989a68d
--- /dev/null
+++ b/dom/webidl/HTMLAllCollection.webidl
@@ -0,0 +1,14 @@
+/* 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/. */
+
+/* Emulates undefined through Codegen.py. */
+[LegacyUnenumerableNamedProperties,
+ Exposed=Window]
+interface HTMLAllCollection {
+  readonly attribute unsigned long length;
+  getter Element (unsigned long index);
+  getter (HTMLCollection or Element)? namedItem(DOMString name);
+  (HTMLCollection or Element)? item(optional DOMString nameOrIndex);
+  legacycaller (HTMLCollection or Element)? (optional DOMString nameOrIndex);
+};