106 lines
3.1 KiB
C#
106 lines
3.1 KiB
C#
//
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// LeafNode.cs
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//
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// Authors:
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// Alexander Chebaturkin (chebaturkin@gmail.com)
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//
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// Copyright (C) 2012 Alexander Chebaturkin
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace Mono.CodeContracts.Static.DataStructures.Patricia
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{
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public class LeafNode<T> : PatriciaTrieNode<T>
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{
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private readonly int _key;
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public override bool Contains(int key)
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{
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return key == _key;
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}
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public override int Key { get { return _key; } }
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public override int Count { get { return 1; } }
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public T Value { get; private set; }
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public LeafNode(int key, T value)
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{
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_key = key;
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Value = value;
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}
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public override IImmutableIntMap<T> Add(int key, T value)
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{
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if (key == Key)
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return new LeafNode<T>(key, value);
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return Join(new LeafNode<T>(key, value), this);
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}
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public override IImmutableIntMap<T> Remove(int key)
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{
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if (key == this.Key)
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return EmptyNode<T>.Instance;
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return this;
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}
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public override void Visit(Action<T> action)
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{
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action(Value);
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}
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public override void Visit(Action<int, T> action)
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{
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action(Key, Value);
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}
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protected internal override void FillKeysTo(List<int> list)
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{
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list.Add(_key);
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}
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protected internal override void FillValuesTo(List<T> list)
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{
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list.Add(Value);
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}
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protected internal override void AppendToBuilder(StringBuilder sb)
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{
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sb.AppendFormat("{0}->'{1}' ", _key, Value);
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}
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protected internal override void Dump(TextWriter tw, string prefix)
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{
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tw.WriteLine(prefix + "<Leaf Key={0} Value='{1}' />", _key, Value);
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}
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public override T Lookup(int key)
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{
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return key == _key ? Value : default(T);
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}
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}
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} |