Add cast for compilation

this._target is an Element, getFlattenedNodes accepts and HTMLElement Upcoming version of closure compiler type checks this better
Polymer · Sep 11, 2018 · b0aa913 · b0aa913
1 parent 2a49743
commit b0aa913
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/utils/flattened-nodes-observer.js b/lib/utils/flattened-nodes-observer.js
@@ -252,7 +252,8 @@ export class FlattenedNodesObserver {
       addedNodes: [],
       removedNodes: []
     };
-    let newNodes = this.constructor.getFlattenedNodes(this._target);
+    let newNodes = this.constructor.getFlattenedNodes(
+        /** @type {!HTMLElement} */ (this._target));
     let splices = calculateSplices(newNodes,
       this._effectiveNodes);
     // process removals