Files
crtr/Assets/YamlDotNet/Serialization/NodeDeserializers/ArrayNodeDeserializer.cs
2022-12-12 22:23:49 +08:00

120 lines
4.0 KiB
C#

// This file is part of YamlDotNet - A .NET library for YAML.
// Copyright (c) Antoine Aubry and contributors
//
// 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.
using System;
using System.Collections;
using YamlDotNet.Core;
namespace YamlDotNet.Serialization.NodeDeserializers
{
public sealed class ArrayNodeDeserializer : INodeDeserializer
{
bool INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func<IParser, Type, object?> nestedObjectDeserializer, out object? value)
{
if (!expectedType.IsArray)
{
value = false;
return false;
}
var itemType = expectedType.GetElementType()!; // Arrays always have an element type
var items = new ArrayList();
CollectionNodeDeserializer.DeserializeHelper(itemType, parser, nestedObjectDeserializer, items, true);
var array = Array.CreateInstance(itemType, items.Count);
items.CopyTo(array, 0);
value = array;
return true;
}
private sealed class ArrayList : IList
{
private object?[] data;
#pragma warning disable CS8618 // Non-nullable field is uninitialized. Initialized inside Clear()
public ArrayList()
#pragma warning restore CS8618 // Non-nullable field is uninitialized.
{
Clear();
}
public int Add(object? value)
{
if (Count == data.Length)
{
Array.Resize(ref data, data.Length * 2);
}
data[Count] = value;
return Count++;
}
public void Clear()
{
data = new object[10];
Count = 0;
}
bool IList.Contains(object? value) => throw new NotSupportedException();
int IList.IndexOf(object? value) => throw new NotSupportedException();
void IList.Insert(int index, object? value) => throw new NotSupportedException();
void IList.Remove(object? value) => throw new NotSupportedException();
void IList.RemoveAt(int index) => throw new NotSupportedException();
public bool IsFixedSize => false;
public bool IsReadOnly => false;
public object? this[int index]
{
get
{
return data[index];
}
set
{
data[index] = value;
}
}
public void CopyTo(Array array, int index)
{
Array.Copy(data, 0, array, index, Count);
}
public int Count { get; private set; }
public bool IsSynchronized => false;
public object SyncRoot => data;
public IEnumerator GetEnumerator()
{
for (var i = 0; i < Count; ++i)
{
yield return data[i];
}
}
}
}
}