private static Expression?DictionaryFn(Expression source, IMemberModel destinationMember, CompileArgument arg)
{
var dictType = source.Type.GetDictionaryType();
if (dictType == null)
{
return(null);
}
var strategy = arg.Settings.NameMatchingStrategy;
var destinationMemberName = destinationMember.GetMemberName(arg.Settings.GetMemberNames, strategy.DestinationMemberNameConverter);
var key = Expression.Constant(destinationMemberName);
var args = dictType.GetGenericArguments();
if (strategy.SourceMemberNameConverter != NameMatchingStrategy.Identity)
{
var method = typeof(MapsterHelper).GetMethods().First(m => m.Name == nameof(MapsterHelper.FlexibleGet)).MakeGenericMethod(args[1]);
return(Expression.Call(method, source.To(dictType), key, MapsterHelper.GetConverterExpression(strategy.SourceMemberNameConverter)));
}
else
{
var method = typeof(MapsterHelper).GetMethods().First(m => m.Name == nameof(MapsterHelper.GetValueOrDefault)).MakeGenericMethod(args);
return(Expression.Call(method, source.To(dictType), key));
}
}
private static Expression?FlattenMemberFn(Expression source, IMemberModel destinationMember, CompileArgument arg)
{
var strategy = arg.Settings.NameMatchingStrategy;
var destinationMemberName = destinationMember.GetMemberName(arg.Settings.GetMemberNames, strategy.DestinationMemberNameConverter);
return(GetDeepFlattening(source, destinationMemberName, arg));
}
internal static IEnumerable <InvokerModel> FindUnflatteningPairs(Expression source, IMemberModel destinationMember, CompileArgument arg)
{
var strategy = arg.Settings.NameMatchingStrategy;
var destinationMemberName = destinationMember.GetMemberName(arg.Settings.GetMemberNames, strategy.DestinationMemberNameConverter);
var members = source.Type.GetFieldsAndProperties(accessorFlags: BindingFlags.NonPublic | BindingFlags.Public);
foreach (var member in members)
{
if (!member.ShouldMapMember(arg, MemberSide.Source))
{
continue;
}
var sourceMemberName = member.GetMemberName(arg.Settings.GetMemberNames, strategy.SourceMemberNameConverter);
if (!sourceMemberName.StartsWith(destinationMemberName) || sourceMemberName == destinationMemberName)
{
continue;
}
foreach (var prop in GetDeepUnflattening(destinationMember, sourceMemberName.Substring(destinationMemberName.Length).TrimStart('_'), arg))
{
yield return(new InvokerModel
{
SourceMemberName = member.Name,
DestinationMemberName = destinationMember.Name + "." + prop,
});
}
}
}
private static Expression?PropertyOrFieldFn(Expression source, IMemberModel destinationMember, CompileArgument arg)
{
var members = source.Type.GetFieldsAndProperties(accessorFlags: BindingFlags.NonPublic | BindingFlags.Public);
var strategy = arg.Settings.NameMatchingStrategy;
var destinationMemberName = destinationMember.GetMemberName(arg.Settings.GetMemberNames, strategy.DestinationMemberNameConverter);
return(members
.Where(member => member.ShouldMapMember(arg, MemberSide.Source))
.Where(member => member.GetMemberName(arg.Settings.GetMemberNames, strategy.SourceMemberNameConverter) == destinationMemberName)
.Select(member => member.GetExpression(source))
.FirstOrDefault());
}
private static Expression?GetMethodFn(Expression source, IMemberModel destinationMember, CompileArgument arg)
{
if (arg.MapType == MapType.Projection)
{
return(null);
}
var strategy = arg.Settings.NameMatchingStrategy;
var destinationMemberName = "Get" + destinationMember.GetMemberName(MemberSide.Destination, arg.Settings.GetMemberNames, strategy.DestinationMemberNameConverter);
var getMethod = Array.Find(source.Type.GetMethods(BindingFlags.Public | BindingFlags.Instance), m => strategy.SourceMemberNameConverter(m.Name) == destinationMemberName && m.GetParameters().Length == 0);
if (getMethod == null)
{
return(null);
}
if (getMethod.Name == "GetType" && destinationMember.Type != typeof(Type))
{
return(null);
}
return(Expression.Call(source, getMethod));
}