using System;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;

namespace Foodsoft.Alpm
{
    internal struct ListRef : CriticalFinalIDisposable
    {
        public SafeAlpmHandle SafeAlpmHandle
        {
            [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
            [PrePrepareMethod]
            get;
        }
        
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail), PrePrepareMethod]
        public ListRef(SafeAlpmHandle handle)
        {
            SafeAlpmHandle = null!;
            RuntimeHelpers.PrepareConstrainedRegions();
            try { }
            finally
            {
                SafeAlpmHandle = handle;
                var success = false;
                handle.DangerousAddRef(ref success);
                if (success)
                    SafeAlpmHandle = handle;
                else
                {
                    SafeAlpmHandle = null!;
                    throw new ObjectDisposedException(GetType().FullName);
                }
            }
        }

        ~ListRef()
        {
            
        }
        
        public void Dispose()
        {
        }
    }
}