140 lines
4.8 KiB
C#
140 lines
4.8 KiB
C#
#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.Generic;
|
|
#if !HAVE_LINQ
|
|
using LC.Newtonsoft.Json.Utilities.LinqBridge;
|
|
#else
|
|
using System.Linq;
|
|
#endif
|
|
using LC.Newtonsoft.Json.Utilities;
|
|
using System.Collections;
|
|
|
|
namespace LC.Newtonsoft.Json.Linq
|
|
{
|
|
/// <summary>
|
|
/// Represents a collection of <see cref="JToken"/> objects.
|
|
/// </summary>
|
|
/// <typeparam name="T">The type of token.</typeparam>
|
|
public readonly struct JEnumerable<T> : IJEnumerable<T>, IEquatable<JEnumerable<T>> where T : JToken
|
|
{
|
|
/// <summary>
|
|
/// An empty collection of <see cref="JToken"/> objects.
|
|
/// </summary>
|
|
public static readonly JEnumerable<T> Empty = new JEnumerable<T>(Enumerable.Empty<T>());
|
|
|
|
private readonly IEnumerable<T> _enumerable;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="JEnumerable{T}"/> struct.
|
|
/// </summary>
|
|
/// <param name="enumerable">The enumerable.</param>
|
|
public JEnumerable(IEnumerable<T> enumerable)
|
|
{
|
|
ValidationUtils.ArgumentNotNull(enumerable, nameof(enumerable));
|
|
|
|
_enumerable = enumerable;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns an enumerator that can be used to iterate through the collection.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// A <see cref="IEnumerator{T}"/> that can be used to iterate through the collection.
|
|
/// </returns>
|
|
public IEnumerator<T> GetEnumerator()
|
|
{
|
|
return (_enumerable ?? Empty).GetEnumerator();
|
|
}
|
|
|
|
IEnumerator IEnumerable.GetEnumerator()
|
|
{
|
|
return GetEnumerator();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the <see cref="IJEnumerable{T}"/> of <see cref="JToken"/> with the specified key.
|
|
/// </summary>
|
|
/// <value></value>
|
|
public IJEnumerable<JToken> this[object key]
|
|
{
|
|
get
|
|
{
|
|
if (_enumerable == null)
|
|
{
|
|
return JEnumerable<JToken>.Empty;
|
|
}
|
|
|
|
return new JEnumerable<JToken>(_enumerable.Values<T, JToken>(key));
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified <see cref="JEnumerable{T}"/> is equal to this instance.
|
|
/// </summary>
|
|
/// <param name="other">The <see cref="JEnumerable{T}"/> to compare with this instance.</param>
|
|
/// <returns>
|
|
/// <c>true</c> if the specified <see cref="JEnumerable{T}"/> is equal to this instance; otherwise, <c>false</c>.
|
|
/// </returns>
|
|
public bool Equals(JEnumerable<T> other)
|
|
{
|
|
return Equals(_enumerable, other._enumerable);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified <see cref="Object"/> is equal to this instance.
|
|
/// </summary>
|
|
/// <param name="obj">The <see cref="Object"/> to compare with this instance.</param>
|
|
/// <returns>
|
|
/// <c>true</c> if the specified <see cref="Object"/> is equal to this instance; otherwise, <c>false</c>.
|
|
/// </returns>
|
|
public override bool Equals(object obj)
|
|
{
|
|
if (obj is JEnumerable<T> enumerable)
|
|
{
|
|
return Equals(enumerable);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a hash code for this instance.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
|
|
/// </returns>
|
|
public override int GetHashCode()
|
|
{
|
|
if (_enumerable == null)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return _enumerable.GetHashCode();
|
|
}
|
|
}
|
|
} |