Warn about invalid arguments to ColorFilter.mode

Fixes flutter/flutter#100702
flutter · Mar 26, 2022 · 88b4d46 · 88b4d46
1 parent ca2f95c
commit 88b4d46
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lib/web_ui/lib/src/engine/canvaskit/color_filter.dart b/lib/web_ui/lib/src/engine/canvaskit/color_filter.dart
@@ -83,10 +83,14 @@ class CkBlendModeColorFilter extends CkColorFilter {
 
   @override
   SkColorFilter _initRawColorFilter() {
-    return canvasKit.ColorFilter.MakeBlend(
+    SkColorFilter filter = canvasKit.ColorFilter.MakeBlend(
       toSharedSkColor1(color),
       toSkBlendMode(blendMode),
     );
+    if (filter == null) {
+      throw ArgumentError('Invalid parameters for blend mode ColorFilter');
+    }
+    return filter;
   }
 
   @override