Index: sdk/lib/io/platform_impl.dart |
diff --git a/sdk/lib/io/platform_impl.dart b/sdk/lib/io/platform_impl.dart |
index d735521904ece9e850111c23fa695245ba284439..5ff41c40ebba314619676e9643b56c2a731a2589 100644 |
--- a/sdk/lib/io/platform_impl.dart |
+++ b/sdk/lib/io/platform_impl.dart |
@@ -112,7 +112,7 @@ class _CaseInsensitiveStringMap<V> implements Map<String, V> { |
_map[key.toUpperCase()] = value; |
} |
V putIfAbsent(String key, V ifAbsent()) { |
- _map.putIfAbsent(key.toUpperCase(), ifAbsent); |
+ return _map.putIfAbsent(key.toUpperCase(), ifAbsent); |
} |
addAll(Map other) { |
other.forEach((key, value) => this[key.toUpperCase()] = value); |