aspnetcore/src/Microsoft.AspNet.Security.D.../CryptoUtil.cs

36 lines
1.4 KiB
C#

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Security.Cryptography;
namespace Microsoft.AspNet.Security.DataProtection
{
internal static class CryptoUtil
{
// This isn't a typical Debug.Assert; the check is always performed, even in retail builds.
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Assert(bool condition, string message)
{
if (!condition)
{
Fail(message);
}
}
// This isn't a typical Debug.Fail; an error always occurs, even in retail builds.
// This method doesn't return, but since the CLR doesn't allow specifying a 'never'
// return type, we mimic it by specifying our return type as Exception. That way
// callers can write 'throw Fail(...);' to make the C# compiler happy, as the
// throw keyword is implicitly of type O.
[MethodImpl(MethodImplOptions.NoInlining)]
public static Exception Fail(string message)
{
Debug.Fail(message);
throw new CryptographicException("Assertion failed: " + message);
}
}
}