// 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.
 
#nullable disable
 
using System.Composition;
 
namespace Microsoft.CodeAnalysis.Diagnostics
{
    [Export(typeof(IDiagnosticUpdateSourceRegistrationService))]
    internal partial class DiagnosticService : IDiagnosticUpdateSourceRegistrationService
    {
        public void Register(IDiagnosticUpdateSource source)
        {
            lock (_gate)
            {
                if (_updateSources.Contains(source))
                {
                    return;
                }
 
                _updateSources = _updateSources.Add(source);
 
                source.DiagnosticsUpdated += OnDiagnosticsUpdated;
                source.DiagnosticsCleared += OnCleared;
            }
        }
    }
}