1 files changed, 15 insertions, 0 deletions
diff --git a/components/script/dom/macros.rs b/components/script/dom/macros.rs
index 3ad9713fb70..58af2b28ac6 100644
--- a/components/script/dom/macros.rs
+++ b/components/script/dom/macros.rs
@@ -503,3 +503,18 @@ macro_rules! document_and_element_event_handlers(
         event_handler!(paste, GetOnpaste, SetOnpaste);
     )
 );
+
+#[macro_export]
+macro_rules! rooted_vec {
+    (let mut $name:ident) => {
+        rooted_vec!(let mut $name <- ::std::iter::empty())
+    };
+    (let $name:ident <- $iter:expr) => {
+        let mut __root = $crate::dom::bindings::trace::RootableVec::new_unrooted();
+        let $name = $crate::dom::bindings::trace::RootedVec::new(&mut __root, $iter);
+    };
+    (let mut $name:ident <- $iter:expr) => {
+        let mut __root = $crate::dom::bindings::trace::RootableVec::new_unrooted();
+        let mut $name = $crate::dom::bindings::trace::RootedVec::new(&mut __root, $iter);
+    }
+}