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// -----------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
// -----------------------------------------------------------------------
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace Microsoft.Internal.Collections
{
[DebuggerDisplay("Count = {Count}")]
[DebuggerTypeProxy(typeof(ReadOnlyDictionaryDebuggerProxy<,>))]
internal sealed partial class ReadOnlyDictionary<TKey, TValue> : IDictionary<TKey, TValue>
{
private readonly IDictionary<TKey, TValue> _innerDictionary;
public ReadOnlyDictionary(IDictionary<TKey, TValue> dictionary)
{
this._innerDictionary = dictionary ?? new Dictionary<TKey, TValue>(0);
}
public int Count
{
get { return this._innerDictionary.Count; }
}
public bool IsReadOnly
{
get { return true; }
}
public ICollection<TKey> Keys
{
get { return this._innerDictionary.Keys; }
}
public TValue this[TKey key]
{
get { return this._innerDictionary[key]; }
set { throw new NotSupportedException(Strings.NotSupportedReadOnlyDictionary); }
}
public ICollection<TValue> Values
{
get { return this._innerDictionary.Values; }
}
public bool Contains(KeyValuePair<TKey, TValue> item)
{
return this._innerDictionary.Contains(item);
}
public bool ContainsKey(TKey key)
{
return this._innerDictionary.ContainsKey(key);
}
public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex)
{
this._innerDictionary.CopyTo(array, arrayIndex);
}
public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator()
{
return this._innerDictionary.GetEnumerator();
}
public bool TryGetValue(TKey key, out TValue value)
{
return this._innerDictionary.TryGetValue(key, out value);
}
IEnumerator IEnumerable.GetEnumerator()
{
return this._innerDictionary.GetEnumerator();
}
void IDictionary<TKey, TValue>.Add(TKey key, TValue value)
{
throw new NotSupportedException(Strings.NotSupportedReadOnlyDictionary);
}
void ICollection<KeyValuePair<TKey, TValue>>.Add(KeyValuePair<TKey, TValue> item)
{
throw new NotSupportedException(Strings.NotSupportedReadOnlyDictionary);
}
void ICollection<KeyValuePair<TKey, TValue>>.Clear()
{
throw new NotSupportedException(Strings.NotSupportedReadOnlyDictionary);
}
bool IDictionary<TKey, TValue>.Remove(TKey key)
{
throw new NotSupportedException(Strings.NotSupportedReadOnlyDictionary);
}
bool ICollection<KeyValuePair<TKey, TValue>>.Remove(KeyValuePair<TKey, TValue> item)
{
throw new NotSupportedException(Strings.NotSupportedReadOnlyDictionary);
}
}
}
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