Index: sdk/lib/io/platform_impl.dart |
diff --git a/sdk/lib/io/platform_impl.dart b/sdk/lib/io/platform_impl.dart |
index 4ce43ea1e65507f09bbfac97a6919a66a90297ca..8c9d30c027cd3085a7d3193177175b2ce8279c1e 100644 |
--- a/sdk/lib/io/platform_impl.dart |
+++ b/sdk/lib/io/platform_impl.dart |
@@ -96,20 +96,19 @@ class _Platform { |
class _CaseInsensitiveStringMap<V> implements Map<String, V> { |
final Map<String, V> _map = new Map<String, V>(); |
- bool containsKey(Object key) => |
- key is String && _map.containsKey(key.toUpperCase()); |
+ bool containsKey(String key) => _map.containsKey(key.toUpperCase()); |
bool containsValue(Object value) => _map.containsValue(value); |
- V operator [](Object key) => key is String ? _map[key.toUpperCase()] : null; |
+ V operator [](String key) => _map[key.toUpperCase()]; |
void operator []=(String key, V value) { |
_map[key.toUpperCase()] = value; |
} |
V putIfAbsent(String key, V ifAbsent()) { |
- return _map.putIfAbsent(key.toUpperCase(), ifAbsent); |
+ _map.putIfAbsent(key.toUpperCase(), ifAbsent); |
} |
- void addAll(Map other) { |
+ addAll(Map other) { |
other.forEach((key, value) => this[key.toUpperCase()] = value); |
} |
- V remove(Object key) => key is String ? _map.remove(key.toUpperCase()) : null; |
+ V remove(String key) => _map.remove(key.toUpperCase()); |
void clear() { _map.clear(); } |
void forEach(void f(String key, V value)) { _map.forEach(f); } |
Iterable<String> get keys => _map.keys; |