SerializationGuard.cs

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using System.Reflection;
 
namespace System.Runtime.Serialization;
 
internal static class SerializationGuard
{
    private delegate void ThrowIfDeserializationInProgressWithSwitchDel(string switchName, ref int cachedValue);
 
    private static readonly ThrowIfDeserializationInProgressWithSwitchDel s_throwIfDeserializationInProgressWithSwitch = CreateThrowIfDeserializationInProgressWithSwitchDelegate();
 
    private static ThrowIfDeserializationInProgressWithSwitchDel CreateThrowIfDeserializationInProgressWithSwitchDelegate()
    {
        ThrowIfDeserializationInProgressWithSwitchDel result = null;
        MethodInfo method = typeof(SerializationInfo).GetMethod("ThrowIfDeserializationInProgress", BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic, null, new Type[2]
        {
            typeof(string),
            typeof(int).MakeByRefType()
        }, Array.Empty<ParameterModifier>());
        if (method != null)
        {
            result = method.CreateDelegate<ThrowIfDeserializationInProgressWithSwitchDel>();
        }
        return result;
    }
 
    public static void ThrowIfDeserializationInProgress(string switchSuffix, ref int cachedValue)
    {
        s_throwIfDeserializationInProgressWithSwitch?.Invoke(switchSuffix, ref cachedValue);
    }
}