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

76 lines
2.9 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.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using YamlDotNet.Core;
namespace YamlDotNet.Serialization.Utilities
{
internal sealed class ObjectAnchorCollection
{
private readonly IDictionary<string, object> objectsByAnchor = new Dictionary<string, object>();
private readonly IDictionary<object, string> anchorsByObject = new Dictionary<object, string>();
/// <summary>
/// Adds the specified anchor.
/// </summary>
/// <param name="anchor">The anchor.</param>
/// <param name="object">The @object.</param>
public void Add(string anchor, object @object)
{
objectsByAnchor.Add(anchor, @object);
if (@object != null)
{
anchorsByObject.Add(@object, anchor);
}
}
/// <summary>
/// Gets the anchor for the specified object.
/// </summary>
/// <param name="object">The object.</param>
/// <param name="anchor">The anchor.</param>
/// <returns></returns>
public bool TryGetAnchor(object @object, [MaybeNullWhen(false)] out string? anchor)
{
return anchorsByObject.TryGetValue(@object, out anchor);
}
/// <summary>
/// Gets the <see cref="object"/> with the specified anchor.
/// </summary>
/// <value></value>
public object this[string anchor]
{
get
{
if (objectsByAnchor.TryGetValue(anchor, out var value))
{
return value;
}
throw new AnchorNotFoundException($"The anchor '{anchor}' does not exists");
}
}
}
}