Add assert when out doesn't make sense in cross

adam-singer · Mar 25, 2013 · 8dcc026 · 8dcc026
1 parent 61b9144
commit 8dcc026
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/src/vector_math/vector.dart b/lib/src/vector_math/vector.dart
@@ -50,6 +50,7 @@ dynamic cross(dynamic x, dynamic y, [dynamic out=null]) {
   if (x is vec3 && y is vec3) {
     return x.cross(y, out);
   } else if (x is vec2 && y is vec2) {
+    assert(out == null);
     return x.cross(y);
   } else if (x is num && y is vec2) {
     x = x.toDouble();