Index: sdk/lib/collection/splay_tree.dart |
diff --git a/sdk/lib/collection/splay_tree.dart b/sdk/lib/collection/splay_tree.dart |
index fea7d348b61659b4da3016089d0da737982c0bc7..223e58ca30d5b7f19a9d90f6be89e14d9d8ec646 100644 |
--- a/sdk/lib/collection/splay_tree.dart |
+++ b/sdk/lib/collection/splay_tree.dart |
@@ -325,7 +325,6 @@ class SplayTreeMap<K, V> extends _SplayTree<K> implements Map<K, V> { |
SplayTreeMap._internal(); |
V operator [](Object key) { |
- if (key == null) throw new ArgumentError(key); |
if (!_validKey(key)) return null; |
if (_root != null) { |
int comp = _splay(key); |