/lib/Json45r7/Source/Src/Newtonsoft.Json/Utilities/CollectionWrapper.cs
C# | 281 lines | 215 code | 43 blank | 23 comment | 45 complexity | 7abbfc6b54596e729f2674fbdbbe07c6 MD5 | raw file
- #region License
- // Copyright (c) 2007 James Newton-King
- //
- // Permission is hereby granted, free of charge, to any person
- // obtaining a copy of this software and associated documentation
- // files (the "Software"), to deal in the Software without
- // restriction, including without limitation the rights to use,
- // copy, modify, merge, publish, distribute, sublicense, and/or sell
- // copies of the Software, and to permit persons to whom the
- // Software is furnished to do so, subject to the following
- // conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- // OTHER DEALINGS IN THE SOFTWARE.
- #endregion
- using System;
- using System.Collections;
- using System.Collections.Generic;
- using System.Threading;
- using System.Globalization;
- #if NET20
- using Newtonsoft.Json.Utilities.LinqBridge;
- #else
- using System.Linq;
- #endif
- namespace Newtonsoft.Json.Utilities
- {
- internal interface IWrappedCollection : IList
- {
- object UnderlyingCollection { get; }
- }
- internal class CollectionWrapper<T> : ICollection<T>, IWrappedCollection
- {
- private readonly IList _list;
- private readonly ICollection<T> _genericCollection;
- private object _syncRoot;
- public CollectionWrapper(IList list)
- {
- ValidationUtils.ArgumentNotNull(list, "list");
- if (list is ICollection<T>)
- _genericCollection = (ICollection<T>)list;
- else
- _list = list;
- }
- public CollectionWrapper(ICollection<T> list)
- {
- ValidationUtils.ArgumentNotNull(list, "list");
- _genericCollection = list;
- }
- public virtual void Add(T item)
- {
- if (_genericCollection != null)
- _genericCollection.Add(item);
- else
- _list.Add(item);
- }
- public virtual void Clear()
- {
- if (_genericCollection != null)
- _genericCollection.Clear();
- else
- _list.Clear();
- }
- public virtual bool Contains(T item)
- {
- if (_genericCollection != null)
- return _genericCollection.Contains(item);
- else
- return _list.Contains(item);
- }
- public virtual void CopyTo(T[] array, int arrayIndex)
- {
- if (_genericCollection != null)
- _genericCollection.CopyTo(array, arrayIndex);
- else
- _list.CopyTo(array, arrayIndex);
- }
- public virtual int Count
- {
- get
- {
- if (_genericCollection != null)
- return _genericCollection.Count;
- else
- return _list.Count;
- }
- }
- public virtual bool IsReadOnly
- {
- get
- {
- if (_genericCollection != null)
- return _genericCollection.IsReadOnly;
- else
- return _list.IsReadOnly;
- }
- }
- public virtual bool Remove(T item)
- {
- if (_genericCollection != null)
- {
- return _genericCollection.Remove(item);
- }
- else
- {
- bool contains = _list.Contains(item);
- if (contains)
- _list.Remove(item);
- return contains;
- }
- }
- public virtual IEnumerator<T> GetEnumerator()
- {
- if (_genericCollection != null)
- return _genericCollection.GetEnumerator();
- return _list.Cast<T>().GetEnumerator();
- }
- IEnumerator IEnumerable.GetEnumerator()
- {
- if (_genericCollection != null)
- return _genericCollection.GetEnumerator();
- else
- return _list.GetEnumerator();
- }
- int IList.Add(object value)
- {
- VerifyValueType(value);
- Add((T)value);
- return (Count - 1);
- }
- bool IList.Contains(object value)
- {
- if (IsCompatibleObject(value))
- return Contains((T)value);
- return false;
- }
- int IList.IndexOf(object value)
- {
- if (_genericCollection != null)
- throw new InvalidOperationException("Wrapped ICollection<T> does not support IndexOf.");
- if (IsCompatibleObject(value))
- return _list.IndexOf((T)value);
- return -1;
- }
- void IList.RemoveAt(int index)
- {
- if (_genericCollection != null)
- throw new InvalidOperationException("Wrapped ICollection<T> does not support RemoveAt.");
- _list.RemoveAt(index);
- }
- void IList.Insert(int index, object value)
- {
- if (_genericCollection != null)
- throw new InvalidOperationException("Wrapped ICollection<T> does not support Insert.");
- VerifyValueType(value);
- _list.Insert(index, (T)value);
- }
- bool IList.IsFixedSize
- {
- get
- {
- if (_genericCollection != null)
- // ICollection<T> only has IsReadOnly
- return _genericCollection.IsReadOnly;
- else
- return _list.IsFixedSize;
- }
- }
- void IList.Remove(object value)
- {
- if (IsCompatibleObject(value))
- Remove((T)value);
- }
- object IList.this[int index]
- {
- get
- {
- if (_genericCollection != null)
- throw new InvalidOperationException("Wrapped ICollection<T> does not support indexer.");
- return _list[index];
- }
- set
- {
- if (_genericCollection != null)
- throw new InvalidOperationException("Wrapped ICollection<T> does not support indexer.");
- VerifyValueType(value);
- _list[index] = (T)value;
- }
- }
- void ICollection.CopyTo(Array array, int arrayIndex)
- {
- CopyTo((T[])array, arrayIndex);
- }
- bool ICollection.IsSynchronized
- {
- get { return false; }
- }
- object ICollection.SyncRoot
- {
- get
- {
- if (_syncRoot == null)
- Interlocked.CompareExchange(ref _syncRoot, new object(), null);
- return _syncRoot;
- }
- }
- private static void VerifyValueType(object value)
- {
- if (!IsCompatibleObject(value))
- throw new ArgumentException("The value '{0}' is not of type '{1}' and cannot be used in this generic collection.".FormatWith(CultureInfo.InvariantCulture, value, typeof(T)), "value");
- }
- private static bool IsCompatibleObject(object value)
- {
- if (!(value is T) && (value != null || (typeof(T).IsValueType() && !ReflectionUtils.IsNullableType(typeof(T)))))
- return false;
- return true;
- }
- public object UnderlyingCollection
- {
- get
- {
- if (_genericCollection != null)
- return _genericCollection;
- else
- return _list;
- }
- }
- }
- }