regis@google.com
02a8df0c83
Patch List and Map (implementation) classes with literal factories. Review URL: https://codereview.chromium.org//11369234 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@14873 260f80e4-7a28-3924-810f-c04153c831b5
20 lines
760 B
Dart
20 lines
760 B
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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patch class _HashMapImpl<K, V> {
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// Factory constructing a Map from a parser generated Map literal.
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// [elements] contains n key-value pairs.
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// The keys are at position 2*n and are already type checked by the parser
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// in checked mode.
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// The values are at position 2*n+1 and are not yet type checked.
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factory Map._fromLiteral(List elements) {
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var map = new LinkedHashMap<String, V>();
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var len = elements.length;
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for (int i = 1; i < len; i += 2) {
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map[elements[i - 1]] = elements[i];
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}
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return map;
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}
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}
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