101 lines
2.9 KiB
C#
101 lines
2.9 KiB
C#
/*
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Copyright 2010 Google Inc
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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namespace Google.Apis.Json
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{
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/// <summary>
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/// Provides values which are explicitly expressed as <c>null</c> when converted to JSON.
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/// </summary>
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public static class JsonExplicitNull
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{
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/// <summary>
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/// Get an <see cref="IList{T}"/> that is explicitly expressed as <c>null</c> when converted to JSON.
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/// </summary>
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/// <returns>An <see cref="IList{T}"/> that is explicitly expressed as <c>null</c> when converted to JSON.</returns>
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public static IList<T> ForIList<T>() => ExplicitNullList<T>.Instance;
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[JsonExplicitNull]
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private sealed class ExplicitNullList<T> : IList<T>
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{
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public static ExplicitNullList<T> Instance = new ExplicitNullList<T>();
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public T this[int index]
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{
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get { throw new NotSupportedException(); }
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set { throw new NotSupportedException(); }
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}
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public int Count { get { throw new NotSupportedException(); } }
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public bool IsReadOnly { get { throw new NotSupportedException(); } }
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public void Add(T item)
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{
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throw new NotSupportedException();
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}
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public void Clear()
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{
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throw new NotSupportedException();
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}
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public bool Contains(T item)
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{
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throw new NotSupportedException();
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}
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public void CopyTo(T[] array, int arrayIndex)
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{
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throw new NotSupportedException();
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}
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public IEnumerator<T> GetEnumerator()
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{
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throw new NotSupportedException();
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}
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public int IndexOf(T item)
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{
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throw new NotSupportedException();
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}
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public void Insert(int index, T item)
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{
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throw new NotSupportedException();
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}
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public bool Remove(T item)
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{
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throw new NotSupportedException();
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}
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public void RemoveAt(int index)
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{
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throw new NotSupportedException();
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}
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IEnumerator IEnumerable.GetEnumerator()
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{
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throw new NotSupportedException();
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}
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}
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}
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}
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