|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
namespace Windows.Win32.Foundation;
/// <summary>
/// Adapter to use when owning classes cannot directly implement <see cref="IHandle{T}"/>.
/// </summary>
internal readonly struct HandleRef<THandle> : IHandle<THandle>, IEquatable<HandleRef<THandle>>
where THandle : unmanaged, IEquatable<THandle>
{
public required object? Wrapper { get; init; }
public required THandle Handle { get; init; }
[SetsRequiredMembers]
public HandleRef(object? wrapper, THandle handle)
{
Wrapper = wrapper;
Handle = handle;
}
[SetsRequiredMembers]
public HandleRef(IHandle<THandle>? handle)
{
Wrapper = handle;
Handle = handle?.Handle ?? default;
}
public bool Equals(HandleRef<THandle> other)
=> other.Handle.Equals(Handle) && Equals(other.Wrapper, Wrapper);
public override bool Equals([NotNullWhen(true)] object? obj) => obj is THandle other && Equals(other);
public override int GetHashCode() => HashCode.Combine(Wrapper, Handle);
public static bool operator ==(HandleRef<THandle> left, HandleRef<THandle> right) => left.Equals(right);
public static bool operator !=(HandleRef<THandle> left, HandleRef<THandle> right) => !(left == right);
public bool IsNull => Handle.Equals(default);
}
|