713 lines
19 KiB
C#
713 lines
19 KiB
C#
#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// 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
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Collections;
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using System.Threading;
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using System.Diagnostics;
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using System.Runtime.CompilerServices;
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using System.Diagnostics.CodeAnalysis;
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#if !HAVE_LINQ
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using LC.Newtonsoft.Json.Utilities.LinqBridge;
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#else
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using System.Linq;
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#endif
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namespace LC.Newtonsoft.Json.Utilities
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{
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internal interface IWrappedDictionary
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: IDictionary
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{
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object UnderlyingDictionary { get; }
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}
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internal class DictionaryWrapper<TKey, TValue> : IDictionary<TKey, TValue>, IWrappedDictionary
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{
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private readonly IDictionary? _dictionary;
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private readonly IDictionary<TKey, TValue>? _genericDictionary;
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#if HAVE_READ_ONLY_COLLECTIONS
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private readonly IReadOnlyDictionary<TKey, TValue>? _readOnlyDictionary;
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#endif
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private object? _syncRoot;
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public DictionaryWrapper(IDictionary dictionary)
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{
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ValidationUtils.ArgumentNotNull(dictionary, nameof(dictionary));
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_dictionary = dictionary;
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}
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public DictionaryWrapper(IDictionary<TKey, TValue> dictionary)
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{
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ValidationUtils.ArgumentNotNull(dictionary, nameof(dictionary));
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_genericDictionary = dictionary;
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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public DictionaryWrapper(IReadOnlyDictionary<TKey, TValue> dictionary)
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{
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ValidationUtils.ArgumentNotNull(dictionary, nameof(dictionary));
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_readOnlyDictionary = dictionary;
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}
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#endif
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internal IDictionary<TKey, TValue> GenericDictionary
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{
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get
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{
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MiscellaneousUtils.Assert(_genericDictionary != null);
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return _genericDictionary;
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}
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}
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public void Add(TKey key, TValue value)
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{
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if (_dictionary != null)
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{
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_dictionary.Add(key, value);
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}
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else if (_genericDictionary != null)
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{
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_genericDictionary.Add(key, value);
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}
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else
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{
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throw new NotSupportedException();
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}
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}
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public bool ContainsKey(TKey key)
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{
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if (_dictionary != null)
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{
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return _dictionary.Contains(key);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.ContainsKey(key);
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}
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#endif
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else
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{
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return GenericDictionary.ContainsKey(key);
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}
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}
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public ICollection<TKey> Keys
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{
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get
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{
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if (_dictionary != null)
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{
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return _dictionary.Keys.Cast<TKey>().ToList();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.Keys.ToList();
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}
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#endif
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else
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{
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return GenericDictionary.Keys;
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}
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}
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}
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public bool Remove(TKey key)
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{
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if (_dictionary != null)
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{
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if (_dictionary.Contains(key))
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{
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_dictionary.Remove(key);
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return true;
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}
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else
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{
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return false;
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}
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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return GenericDictionary.Remove(key);
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}
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}
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public bool TryGetValue(TKey key, [MaybeNull]out TValue value)
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{
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if (_dictionary != null)
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{
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if (!_dictionary.Contains(key))
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{
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#pragma warning disable CS8653 // A default expression introduces a null value for a type parameter.
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value = default;
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#pragma warning restore CS8653 // A default expression introduces a null value for a type parameter.
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return false;
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}
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else
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{
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value = (TValue)_dictionary[key];
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return true;
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}
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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return GenericDictionary.TryGetValue(key, out value);
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}
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}
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public ICollection<TValue> Values
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{
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get
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{
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if (_dictionary != null)
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{
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return _dictionary.Values.Cast<TValue>().ToList();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.Values.ToList();
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}
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#endif
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else
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{
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return GenericDictionary.Values;
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}
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}
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}
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public TValue this[TKey key]
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{
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get
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{
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if (_dictionary != null)
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{
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return (TValue)_dictionary[key];
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary[key];
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}
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#endif
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else
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{
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return GenericDictionary[key];
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}
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}
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set
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{
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if (_dictionary != null)
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{
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_dictionary[key] = value;
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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GenericDictionary[key] = value;
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}
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}
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}
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public void Add(KeyValuePair<TKey, TValue> item)
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{
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if (_dictionary != null)
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{
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((IList)_dictionary).Add(item);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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_genericDictionary?.Add(item);
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}
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}
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public void Clear()
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{
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if (_dictionary != null)
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{
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_dictionary.Clear();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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GenericDictionary.Clear();
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}
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}
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public bool Contains(KeyValuePair<TKey, TValue> item)
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{
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if (_dictionary != null)
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{
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return ((IList)_dictionary).Contains(item);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.Contains(item);
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}
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#endif
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else
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{
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return GenericDictionary.Contains(item);
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}
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}
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public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex)
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{
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if (_dictionary != null)
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{
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// Manual use of IDictionaryEnumerator instead of foreach to avoid DictionaryEntry box allocations.
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IDictionaryEnumerator e = _dictionary.GetEnumerator();
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try
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{
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while (e.MoveNext())
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{
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DictionaryEntry entry = e.Entry;
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array[arrayIndex++] = new KeyValuePair<TKey, TValue>((TKey)entry.Key, (TValue)entry.Value);
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}
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}
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finally
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{
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(e as IDisposable)?.Dispose();
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}
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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GenericDictionary.CopyTo(array, arrayIndex);
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}
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}
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public int Count
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{
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get
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{
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if (_dictionary != null)
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{
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return _dictionary.Count;
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.Count;
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}
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#endif
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else
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{
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return GenericDictionary.Count;
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}
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}
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}
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public bool IsReadOnly
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{
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get
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{
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if (_dictionary != null)
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{
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return _dictionary.IsReadOnly;
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return true;
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}
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#endif
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else
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{
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return GenericDictionary.IsReadOnly;
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}
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}
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}
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public bool Remove(KeyValuePair<TKey, TValue> item)
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{
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if (_dictionary != null)
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{
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if (_dictionary.Contains(item.Key))
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{
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object value = _dictionary[item.Key];
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if (Equals(value, item.Value))
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{
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_dictionary.Remove(item.Key);
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return true;
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}
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else
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{
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return false;
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}
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}
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else
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{
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return true;
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}
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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return GenericDictionary.Remove(item);
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}
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}
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public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator()
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{
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if (_dictionary != null)
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{
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return _dictionary.Cast<DictionaryEntry>().Select(de => new KeyValuePair<TKey, TValue>((TKey)de.Key, (TValue)de.Value)).GetEnumerator();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.GetEnumerator();
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}
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#endif
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else
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{
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return GenericDictionary.GetEnumerator();
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}
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}
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IEnumerator IEnumerable.GetEnumerator()
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{
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return GetEnumerator();
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}
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void IDictionary.Add(object key, object value)
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{
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if (_dictionary != null)
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{
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_dictionary.Add(key, value);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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GenericDictionary.Add((TKey)key, (TValue)value);
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}
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}
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object? IDictionary.this[object key]
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{
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get
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{
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if (_dictionary != null)
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{
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return _dictionary[key];
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary[(TKey)key];
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}
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#endif
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else
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{
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return GenericDictionary[(TKey)key];
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}
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}
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set
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{
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if (_dictionary != null)
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{
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_dictionary[key] = value;
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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#pragma warning disable CS8601 // Possible null reference assignment.
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GenericDictionary[(TKey)key] = (TValue)value;
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#pragma warning restore CS8601 // Possible null reference assignment.
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}
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}
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}
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private readonly struct DictionaryEnumerator<TEnumeratorKey, TEnumeratorValue> : IDictionaryEnumerator
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{
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private readonly IEnumerator<KeyValuePair<TEnumeratorKey, TEnumeratorValue>> _e;
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public DictionaryEnumerator(IEnumerator<KeyValuePair<TEnumeratorKey, TEnumeratorValue>> e)
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{
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ValidationUtils.ArgumentNotNull(e, nameof(e));
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_e = e;
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}
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public DictionaryEntry Entry => (DictionaryEntry)Current;
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public object Key => Entry.Key;
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public object Value => Entry.Value;
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public object Current => new DictionaryEntry(_e.Current.Key, _e.Current.Value);
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public bool MoveNext()
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{
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return _e.MoveNext();
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}
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public void Reset()
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{
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_e.Reset();
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}
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}
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IDictionaryEnumerator IDictionary.GetEnumerator()
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{
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if (_dictionary != null)
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{
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return _dictionary.GetEnumerator();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return new DictionaryEnumerator<TKey, TValue>(_readOnlyDictionary.GetEnumerator());
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}
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#endif
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else
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{
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return new DictionaryEnumerator<TKey, TValue>(GenericDictionary.GetEnumerator());
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}
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}
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bool IDictionary.Contains(object key)
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{
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if (_genericDictionary != null)
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{
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return _genericDictionary.ContainsKey((TKey)key);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.ContainsKey((TKey)key);
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}
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#endif
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else
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{
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return _dictionary!.Contains(key);
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}
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}
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bool IDictionary.IsFixedSize
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{
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get
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{
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if (_genericDictionary != null)
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{
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return false;
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return true;
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}
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#endif
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else
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{
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return _dictionary!.IsFixedSize;
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}
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}
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}
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ICollection IDictionary.Keys
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{
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get
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{
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if (_genericDictionary != null)
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{
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return _genericDictionary.Keys.ToList();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.Keys.ToList();
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}
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#endif
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else
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{
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return _dictionary!.Keys;
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}
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}
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}
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public void Remove(object key)
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{
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if (_dictionary != null)
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{
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_dictionary.Remove(key);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
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{
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GenericDictionary.Remove((TKey)key);
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}
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}
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ICollection IDictionary.Values
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{
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get
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{
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if (_genericDictionary != null)
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{
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return _genericDictionary.Values.ToList();
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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return _readOnlyDictionary.Values.ToList();
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}
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#endif
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else
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{
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return _dictionary!.Values;
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}
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}
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}
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void ICollection.CopyTo(Array array, int index)
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{
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if (_dictionary != null)
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{
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_dictionary.CopyTo(array, index);
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}
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#if HAVE_READ_ONLY_COLLECTIONS
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else if (_readOnlyDictionary != null)
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{
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throw new NotSupportedException();
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}
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#endif
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else
|
|
{
|
|
GenericDictionary.CopyTo((KeyValuePair<TKey, TValue>[])array, index);
|
|
}
|
|
}
|
|
|
|
bool ICollection.IsSynchronized
|
|
{
|
|
get
|
|
{
|
|
if (_dictionary != null)
|
|
{
|
|
return _dictionary.IsSynchronized;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
object ICollection.SyncRoot
|
|
{
|
|
get
|
|
{
|
|
if (_syncRoot == null)
|
|
{
|
|
Interlocked.CompareExchange(ref _syncRoot, new object(), null);
|
|
}
|
|
|
|
return _syncRoot;
|
|
}
|
|
}
|
|
|
|
public object UnderlyingDictionary
|
|
{
|
|
get
|
|
{
|
|
if (_dictionary != null)
|
|
{
|
|
return _dictionary;
|
|
}
|
|
#if HAVE_READ_ONLY_COLLECTIONS
|
|
else if (_readOnlyDictionary != null)
|
|
{
|
|
return _readOnlyDictionary;
|
|
}
|
|
#endif
|
|
else
|
|
{
|
|
return GenericDictionary;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} |