blob: 07dbc690b572b897f5599599990b213d09819f66 [file] [log] [blame]
// 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 "core_patch.dart";
class Map<K, V> {
// Factory constructing a Map from a parser generated Map literal.
// [elements] contains n key-value pairs.
// The keys are at position 2*n and are already type checked by the parser
// in checked mode.
// The values are at position 2*n+1 and are not yet type checked.
@pragma("vm:entry-point", "call")
factory Map._fromLiteral(List elements) {
var map = new LinkedHashMap<K, V>();
var len = elements.length;
for (int i = 1; i < len; i += 2) {
map[elements[i - 1]] = elements[i];
return map;
factory Map.unmodifiable(Map other) {
return new UnmodifiableMapView<K, V>(new Map<K, V>.from(other));
factory Map() => new LinkedHashMap<K, V>();