System.Security.PermissionSetEnumeratorInternal.GetCurrentIndex C# (CSharp) Method

        public int GetCurrentIndex()
        {
            return enm.Index;
        }
        

        internal bool CheckDeny(PermissionSet deniedSet, out IPermission firstPermThatFailed)
        {
            firstPermThatFailed = null;
            if (deniedSet == null || deniedSet.FastIsEmpty() || this.FastIsEmpty())
                return true;

            if(this.m_Unrestricted && deniedSet.m_Unrestricted)
                return false;

            CodeAccessPermission permThis, permThat;
            PermissionSetEnumeratorInternal enumThis = new PermissionSetEnumeratorInternal(this);

            while (enumThis.MoveNext())
            {
                permThis = enumThis.Current as CodeAccessPermission;
                if(permThis == null || permThis.IsSubsetOf(null))
                    continue; // ignore non-CAS permissions in the grant set.
                if (deniedSet.m_Unrestricted)
                {
                    firstPermThatFailed = permThis;
                    return false;
                }
                permThat = (CodeAccessPermission)deniedSet.GetPermission(enumThis.GetCurrentIndex());
                if (!permThis.CheckDeny(permThat))
                {
                    firstPermThatFailed = permThis;
                    return false;
                }
            }
            if(this.m_Unrestricted)
            {
                PermissionSetEnumeratorInternal enumThat = new PermissionSetEnumeratorInternal(deniedSet);
                while (enumThat.MoveNext())
                {
                    if(enumThat.Current is IPermission)
                        return false;
                }
            }
            return true;
        }