/// <summary>
        /// Add simple or complex item that maps source member to destination member.
        /// </summary>
        /// <typeparam name="TSourceMember"></typeparam>
        /// <typeparam name="TDestinationMember"></typeparam>
        /// <param name="source">The source<see cref="TSourceMember"/></param>
        /// <param name="destination">The destination<see cref="TDestinationMember"/></param>
        /// <param name="complex">The complex<see cref="bool"/></param>
        /// <returns>The <see cref="SimpleMapper"/></returns>
        private SimpleMapper AddItem <TSourceMember, TDestinationMember>(TSourceMember source, TDestinationMember destination, bool complex)
            where TSourceMember : MemberInfo
            where TDestinationMember : MemberInfo
        {
            if (source == null)
            {
                throw new ArgumentNullException(nameof(source));
            }

            if (destination == null)
            {
                throw new ArgumentNullException(nameof(destination));
            }

            var sourceItem      = new MappedItem.Item(source, true);
            var destinationItem = new MappedItem.Item(destination, false);

            MappedItem mapping = new MappedItem(sourceItem, destinationItem, this);

            this.items.Add(mapping);

            if (complex)
            {
                SimpleMapper subMap = MapResolver.Resolve(sourceItem.Type, destinationItem.Type);

                mapping.IsComplex = true;

                subMaps.Add(mapping.Key, subMap);
            }

            return(this);
        }
        /// <summary>
        /// Add simple or complex item that maps source member to destination member.
        /// </summary>
        /// <param name="sourceMemberName">The sourceMemberName<see cref="string"/></param>
        /// <param name="sourceType">The sourceType<see cref="Type"/></param>
        /// <param name="destinationMemberName">The destinationMemberName<see cref="string"/></param>
        /// <param name="destinationType">The destinationType<see cref="Type"/></param>
        /// <param name="complex">The complex<see cref="bool"/></param>
        /// <returns>The <see cref="SimpleMapper"/></returns>
        private SimpleMapper AddItem(string sourceMemberName, Type sourceType, string destinationMemberName, Type destinationType, bool complex)
        {
            if (string.IsNullOrWhiteSpace(sourceMemberName))
            {
                throw new ArgumentNullException(nameof(sourceMemberName));
            }

            if (string.IsNullOrWhiteSpace(destinationMemberName))
            {
                throw new ArgumentNullException(nameof(destinationMemberName));
            }

            if (sourceType == null)
            {
                throw new ArgumentNullException(nameof(sourceType));
            }

            if (destinationType == null)
            {
                throw new ArgumentNullException(nameof(destinationType));
            }

            MemberInfo sm = sourceType.GetMember(sourceMemberName).FirstOrDefault();
            MemberInfo dm = destinationType.GetMember(destinationMemberName).FirstOrDefault();

            MappedItem.Item sourceItem      = null;
            MappedItem.Item destinationItem = null;
            MappedItem      mapping         = null;

            if (sm != null && dm != null)
            {
                sourceItem      = new MappedItem.Item(sm, true);
                destinationItem = new MappedItem.Item(dm, false);
                mapping         = new MappedItem(sourceItem, destinationItem, this);

                this.items.Add(mapping);
            }

            if (mapping != null)
            {
                if (complex)
                {
                    SimpleMapper subMap = MapResolver.Resolve(sourceItem.Type, destinationItem.Type);

                    mapping.IsComplex = true;

                    subMaps.Add(mapping.Key, subMap);
                }
            }

            return(this);
        }
 /// <summary>
 /// Sets destination object member value.
 /// </summary>
 /// <param name="mapping">The mapping<see cref="MappedItem.Item"/></param>
 /// <param name="destination">The destination<see cref="object"/></param>
 /// <param name="value">The value<see cref="object"/></param>
 private static void SetDestinationValue(MappedItem.Item mapping, object destination, object value)
 {
     //// check whether to set property value or invoke method
     if (mapping.Member == MemberType.Property)
     {
         ((PropertyInfo)mapping.MemberInfo).SetValue(destination, value, null);
     }
     else
     {
         //// expected set method has 1 parameter
         ((MethodInfo)mapping.MemberInfo).Invoke(destination, new object[] { value });
     }
 }
        /// <summary>
        /// Gets source object member value.
        /// </summary>
        /// <param name="mapping">The mapping<see cref="MappedItem.Item"/></param>
        /// <param name="source">The source<see cref="object"/></param>
        /// <returns>A value returned by member.</returns>
        private static object GetSourceValue(MappedItem.Item mapping, object source)
        {
            object value;

            //// check whether to get property value or invoke method
            if (mapping.Member == MemberType.Property)
            {
                value = ((PropertyInfo)mapping.MemberInfo).GetValue(source, null);
            }
            else
            {
                //// expected get method has no parameters
                value = ((MethodInfo)mapping.MemberInfo).Invoke(source, null);
            }

            return(value);
        }