// 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.
 
using System.Threading;
using System.Threading.Tasks;
 
namespace Microsoft.CodeAnalysis.Completion;
 
/// <summary>
/// Interface to implement if the provider want to sign up for notification when one of the items it provided
/// is being committed by the host, since calling <see cref="CompletionProvider.GetChangeAsync"/> doesn't necessarily
/// lead to commission.
/// </summary>
internal interface INotifyCommittingItemCompletionProvider
{
    /// <summary>
    /// This is invoked when one of the items provided by this provider is being committed.
    /// </summary>
    /// <remarks>
    /// Host provides no guarantee when will this be called (i.e. pre or post document change), nor the text 
    /// change will actually happen at all (e.g. the commit operation might be cancelled due to cancellation/exception/etc.)
    /// </remarks>
    Task NotifyCommittingItemAsync(Document document, CompletionItem item, char? commitKey, CancellationToken cancellationToken);
}