﻿// 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;
            }
        }
    }
}
