// 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.
 
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Security;
 
namespace System.Runtime
{
    internal static class AssertHelper
    {
        [SuppressMessage(FxCop.Category.ReliabilityBasic, FxCop.Rule.InvariantAssertRule, Justification = "Assert implementation")]
        internal static void FireAssert(string message)
        {
            try
            {
                InternalFireAssert(ref message);
            }
            finally
            {
                Debug.Assert(false, message);
            }
        }
 
        [SuppressMessage(FxCop.Category.Globalization, FxCop.Rule.DoNotPassLiteralsAsLocalizedParameters, Justification = "Debug Only")]
        [Fx.Tag.SecurityNote(Critical = "Calls into various critical methods",
            Safe = "Exists only on debug versions")]
        [SecuritySafeCritical]
        private static void InternalFireAssert(ref string message)
        {
            try
            {
                if (Fx.AssertsFailFast)
                {
                    try
                    {
                        Fx.Exception.TraceFailFast(message);
                    }
                    finally
                    {
                        Environment.FailFast(message);
                    }
                }
            }
            catch (Exception exception)
            {
                if (Fx.IsFatal(exception))
                {
                    throw;
                }
 
                string newMessage = "Exception during FireAssert!";
                try
                {
                    newMessage = string.Concat(newMessage, " [", exception.GetType().Name, ": ", exception.Message, "] --> ", message);
                }
                finally
                {
                    message = newMessage;
                }
                throw;
            }
        }
    }
}