public static Expression GetDerivedTypeMapping(
IObjectMappingData declaredTypeMappingData,
Expression sourceValue,
Type targetType,
out IObjectMappingData derivedTypeMappingData)
{
derivedTypeMappingData = declaredTypeMappingData.WithDerivedTypes(sourceValue.Type, targetType);
var declaredTypeMapperData = declaredTypeMappingData.MapperData;
if (DerivedSourceTypeIsUnconditionallyIgnored(derivedTypeMappingData))
{
return(declaredTypeMapperData.TargetObject.GetConversionTo(targetType));
}
var targetValue = declaredTypeMapperData.TargetMember.IsReadable
? declaredTypeMapperData.TargetObject.GetConversionTo(targetType)
: targetType.ToDefaultExpression();
if (declaredTypeMappingData.IsRoot)
{
return(GetDerivedTypeRootMapping(derivedTypeMappingData, sourceValue, targetValue));
}
if (declaredTypeMapperData.TargetMemberIsEnumerableElement())
{
return(MappingFactory.GetElementMapping(derivedTypeMappingData, sourceValue, targetValue));
}
return(GetDerivedTypeChildMapping(derivedTypeMappingData, sourceValue, targetValue));
}
private static Expression GetElementMapping(
Expression sourceElement,
Expression targetElement,
IObjectMappingData enumerableMappingData)
{
return(MappingFactory.GetElementMapping(sourceElement, targetElement, enumerableMappingData));
}