using System;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;

namespace Foodsoft.Alpm
{
    internal abstract class SafePackageHandle : SafeHandle
    {
        protected SafePackageHandle() : base(IntPtr.Zero, true) { }
        public override bool IsInvalid
        {
            [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), PrePrepareMethod]
            get => handle == IntPtr.Zero;
        }
    }
}