GuidHandle.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.Reflection.Metadata;
 
public readonly struct GuidHandle : IEquatable<GuidHandle>
{
    private readonly int _index;
 
    public bool IsNil => _index == 0;
 
    internal int Index => _index;
 
    private GuidHandle(int index)
    {
        _index = index;
    }
 
    internal static GuidHandle FromIndex(int heapIndex)
    {
        return new GuidHandle(heapIndex);
    }
 
    public static implicit operator Handle(GuidHandle handle)
    {
        return new Handle(114, handle._index);
    }
 
    public static explicit operator GuidHandle(Handle handle)
    {
        if (handle.VType != 114)
        {
            Throw.InvalidCast();
        }
        return new GuidHandle(handle.Offset);
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj is GuidHandle other)
        {
            return Equals(other);
        }
        return false;
    }
 
    public bool Equals(GuidHandle other)
    {
        return _index == other._index;
    }
 
    public override int GetHashCode()
    {
        return _index;
    }
 
    public static bool operator ==(GuidHandle left, GuidHandle right)
    {
        return left.Equals(right);
    }
 
    public static bool operator !=(GuidHandle left, GuidHandle right)
    {
        return !left.Equals(right);
    }
}