IDidChangeWorkspaceFoldersHandler.cs

using System.Threading;
using System.Threading.Tasks;
using MediatR;
using OmniSharp.Extensions.JsonRpc;
using OmniSharp.Extensions.JsonRpc.Generation;
using OmniSharp.Extensions.LanguageServer.Protocol.Client;
using OmniSharp.Extensions.LanguageServer.Protocol.Models;

namespace OmniSharp.Extensions.LanguageServer.Protocol.Workspace
{
    [Parallel]
    [Method(WorkspaceNames.DidChangeWorkspaceFolders, Direction.ClientToServer)]
    [GenerateHandlerMethods]
    [GenerateRequestMethods(typeof(IWorkspaceLanguageClient), typeof(ILanguageClient))]
    public interface IDidChangeWorkspaceFoldersHandler : IJsonRpcNotificationHandler<DidChangeWorkspaceFoldersParams>,
                                                         IRegistration<object> // TODO: Remove this in the future
    {
    }

    public abstract class DidChangeWorkspaceFoldersHandler : IDidChangeWorkspaceFoldersHandler
    {
        private readonly object _registrationOptions;
        public DidChangeWorkspaceFoldersHandler(object registrationOptions) => _registrationOptions = registrationOptions;
        public object GetRegistrationOptions() => _registrationOptions;

        public abstract Task<Unit> Handle(DidChangeWorkspaceFoldersParams request, CancellationToken cancellationToken);
    }
}