// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
namespace Roslyn.LanguageServer.Protocol;
 
/// <summary>
/// Abstracts over the idea of a "sum type". Sum types are types that can contain one value of various types.
/// This abstraction is guaranteed to be typesafe, meaning you cannot access the underlying value without knowing
/// its specific type.
/// </summary>
internal interface ISumType
{
    /// <summary>
    /// Gets the value stored in the SumType. This can be matched against using the "is" operator.
    /// </summary>
    object? Value { get; }
}