// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

part of html;
$ANNOTATIONS
class $CLASSNAME$EXTENDS implements Map<String, String> $NATIVESPEC {

  // TODO(nweiz): update this when maps support lazy iteration
  bool containsValue(String value) => values.any((e) => e == value);

  bool containsKey(String key) => $dom_getItem(key) != null;

  String operator [](String key) => $dom_getItem(key);

  void operator []=(String key, String value) { $dom_setItem(key, value); }

  String putIfAbsent(String key, String ifAbsent()) {
    if (!containsKey(key)) this[key] = ifAbsent();
    return this[key];
  }

  String remove(String key) {
    final value = this[key];
    $dom_removeItem(key);
    return value;
  }

  void clear() => $dom_clear();

  void forEach(void f(String key, String value)) {
    for (var i = 0; true; i++) {
      final key = $dom_key(i);
      if (key == null) return;

      f(key, this[key]);
    }
  }

  Collection<String> get keys {
    final keys = [];
    forEach((k, v) => keys.add(k));
    return keys;
  }

  Collection<String> get values {
    final values = [];
    forEach((k, v) => values.add(v));
    return values;
  }

  int get length => $dom_length;

  bool get isEmpty => $dom_key(0) == null;
$!MEMBERS
}