@@ -1,6 +1,7 @@
mod mouse_region;
mod mouse_region_event;
+#[cfg(debug_assertions)]
use collections::HashSet;
use serde::Deserialize;
use serde_json::json;
@@ -247,6 +248,7 @@ impl Scene {
pub fn push_mouse_region(&mut self, region: MouseRegion) {
if can_draw(region.bounds) {
// Ensure that Regions cannot be added to a scene with the same region id.
+ #[cfg(debug_assertions)]
let region_id;
#[cfg(debug_assertions)]
{