File: Shared\Utilities\IOUtilities.cs
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Project: src\src\Workspaces\Core\Portable\Microsoft.CodeAnalysis.Workspaces.csproj (Microsoft.CodeAnalysis.Workspaces)
// 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;
using System.IO;
using System.Security;
using System.Threading.Tasks;
 
namespace Microsoft.CodeAnalysis.Shared.Utilities;
 
internal static class IOUtilities
{
    public static void PerformIO(Action action)
    {
        PerformIO<object>(() =>
        {
            action();
            return null;
        });
    }
 
    public static T PerformIO<T>(Func<T> function, T defaultValue = default)
    {
        try
        {
            return function();
        }
        catch (Exception e) when (IsNormalIOException(e))
        {
        }
 
        return defaultValue;
    }
 
    public static async Task<T> PerformIOAsync<T>(Func<Task<T>> function, T defaultValue = default)
    {
        try
        {
            return await function().ConfigureAwait(false);
        }
        catch (Exception e) when (IsNormalIOException(e))
        {
        }
 
        return defaultValue;
    }
 
    public static bool IsNormalIOException(Exception e)
    {
        return e is IOException or
               SecurityException or
               ArgumentException or
               UnauthorizedAccessException or
               NotSupportedException or
               InvalidOperationException or
               InvalidDataException;
    }
}