Attach source range information to parsed YAML nodes.

pkg/yaml/lib/src/yaml_map.dart

-// 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.
-
-library yaml.map;
-
-import 'dart:collection';
-
-import 'package:collection/collection.dart';
-
-import 'deep_equals.dart';
-import 'utils.dart';
-
-/// This class behaves almost identically to the normal Dart [Map]
-/// implementation, with the following differences:
-///
-///  *  It allows NaN, list, and map keys.
-///  *  It defines `==` structurally. That is, `yamlMap1 == yamlMap2` if they
-///     have the same contents.
-///  *  It has a compatible [hashCode] method.
-///
-/// This class is deprecated. In future releases, this package will use
-/// a [HashMap] with a custom equality operation rather than a custom class.
-@Deprecated('1.0.0')
-class YamlMap extends DelegatingMap {
-  YamlMap()
-      : super(new HashMap(equals: deepEquals, hashCode: hashCodeFor));
-
-  YamlMap.from(Map map)
-      : super(new HashMap(equals: deepEquals, hashCode: hashCodeFor)) {
-    addAll(map);
-  }
-
-  int get hashCode => hashCodeFor(this);
-
-  bool operator ==(other) {
-    if (other is! YamlMap) return false;
-    return deepEquals(this, other);
-  }
-}