private static void EmitDeserializeUserType(DataReaderMetadata dataReaderMetadata, FieldMap fieldMap, ILGenerator il, Type type, string[] columnNames, Type[] columnTypes)
{
var constructor = type.GetConstructor(Type.EmptyTypes);
if (constructor == null)
{
ThrowException.NoDefaultConstructor();
}
var sample = Activator.CreateInstance(type);
il.Emit(OpCodes.Newobj, constructor);
var uniqueNames = new HashSet <string>();
for (var ordinal = 0; ordinal < columnNames.Length; ordinal++)
{
var propertyInfo = type.GetProperty(columnNames[ordinal], BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase);
if (propertyInfo == null)
{
continue;
}
var getValueMethod = dataReaderMetadata.GetGetValueMethodFromType(columnTypes[ordinal]);
if (propertyInfo.CanWrite && propertyInfo.GetSetMethod() != null)
{
var propertyIsNullInitialized = propertyInfo.CanRead && propertyInfo.GetValue(sample) == null;
var hasRequiredAttribute = PropertyHasRequiredAttribute(propertyInfo);
var dataReaderPropertyValueDeserializer = new DataReaderValueDeserializer(dataReaderMetadata, getValueMethod, propertyInfo, ordinal);
dataReaderPropertyValueDeserializer.EmitDeserializeProperty(il, fieldMap, propertyIsNullInitialized, hasRequiredAttribute);
if (uniqueNames.Add(propertyInfo.Name) == false)
{
ThrowException.DuplicateFieldNames(propertyInfo.Name);
}
continue;
}
var fieldInfo = type.GetField("<" + propertyInfo.Name + ">k__BackingField", BindingFlags.Instance | BindingFlags.NonPublic);
if (fieldInfo != null)
{
var fieldIsNullInitialized = fieldInfo.GetValue(sample) == null;
var hasRequiredAttribute = PropertyHasRequiredAttribute(propertyInfo);
var dataReaderFieldValueDeserializer = new DataReaderValueDeserializer(dataReaderMetadata, getValueMethod, fieldInfo, ordinal);
dataReaderFieldValueDeserializer.EmitDeserializeProperty(il, fieldMap, fieldIsNullInitialized, hasRequiredAttribute);
if (uniqueNames.Add(propertyInfo.Name) == false)
{
ThrowException.DuplicateFieldNames(propertyInfo.Name);
}
}
}
}
private static void EmitDeserializeClrType(DataReaderMetadata dataReaderMetadata, FieldMap fieldMap, ILGenerator il, Type sourceType, Type type)
{
var getValueMethod = dataReaderMetadata.GetGetValueMethodFromType(sourceType);
new DataReaderValueDeserializer(dataReaderMetadata, getValueMethod, type, 0).EmitDeserializeClrType(il, fieldMap, false);
}