// 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.Threading;
 
namespace Microsoft.CodeAnalysis.Internal.Log;
 
/// <summary>
/// a logger that doesn't do anything
/// </summary>
internal sealed class EmptyLogger : ILogger
{
    public static readonly EmptyLogger Instance = new();
 
    public bool IsEnabled(FunctionId functionId)
        => false;
 
    public void Log(FunctionId functionId, LogMessage logMessage)
    {
    }
 
    public void LogBlockStart(FunctionId functionId, LogMessage logMessage, int uniquePairId, CancellationToken cancellationToken)
    {
    }
 
    public void LogBlockEnd(FunctionId functionId, LogMessage logMessage, int uniquePairId, int delta, CancellationToken cancellationToken)
    {
    }
}