lrn@google.com
9b23dff467
This reverts commit r17907. TBR. Review URL: https://codereview.chromium.org//12090093 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17918 260f80e4-7a28-3924-810f-c04153c831b5
28 lines
854 B
Dart
28 lines
854 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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part of yaml;
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/// The visitor pattern for YAML documents.
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class _Visitor {
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/// Returns [alias].
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visitAlias(_AliasNode alias) => alias;
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/// Returns [scalar].
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visitScalar(_ScalarNode scalar) => scalar;
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/// Visits each node in [seq] and returns a list of the results.
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visitSequence(_SequenceNode seq)
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=> seq.content.map((e) => e.visit(this)).toList();
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/// Visits each key and value in [map] and returns a map of the results.
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visitMapping(_MappingNode map) {
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var out = new YamlMap();
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for (var key in map.content.keys) {
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out[key.visit(this)] = map.content[key].visit(this);
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}
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return out;
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}
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}
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