public void Setup()
{
converter1 = Converter.CreateConverter(typeof(int), typeof(long));
converter2 = Converter.CreateConverter(typeof(long), typeof(int));
converter3 = Converter.CreateConverter(typeof(string), typeof(int));
converter4 = Converter.CreateConverter(typeof(int), typeof(string));
}
public Func <object, object> GetConverter(IObjectConverter context, Type sourceType, Type targetType)
{
// To Array
if (targetType.IsArray)
{
var targetElementType = targetType.GetElementType();
var sourceElementType = ResolveEnumerableType(sourceType, out var enumerableType);
if (sourceElementType != null)
{
if (sourceElementType == targetElementType)
{
// IE<T> to T[]
return(((IConverter)Activator.CreateInstance(
SameTypeArrayProvider.Default.GetConverterType(enumerableType).MakeGenericType(targetElementType))).Convert);
}
var converter = context.CreateConverter(sourceElementType, targetElementType);
if (converter != null)
{
// IE<T1> to T2[]
return(((IConverter)Activator.CreateInstance(
OtherTypeArrayProvider.Default.GetConverterType(enumerableType).MakeGenericType(sourceElementType, targetElementType),
converter)).Convert);
}
}
return(null);
}
// To IE<T>
if (targetType.IsGenericType &&
Providers.TryGetValue(targetType.GetGenericTypeDefinition(), out var providerPair))
{
var targetElementType = targetType.GenericTypeArguments[0];
var sourceElementType = ResolveEnumerableType(sourceType, out var enumerableType);
if (sourceElementType != null)
{
if (sourceElementType == targetElementType)
{
// IE<T> to IE<T>
return(((IConverter)Activator.CreateInstance(
providerPair.SameTypeProvider.GetConverterType(enumerableType).MakeGenericType(targetElementType))).Convert);
}
var converter = context.CreateConverter(sourceElementType, targetElementType);
if (converter != null)
{
// IE<T1> to IE<T2>
return(((IConverter)Activator.CreateInstance(
providerPair.OtherTypeProvider.GetConverterType(enumerableType).MakeGenericType(sourceElementType, targetElementType),
converter)).Convert);
}
}
return(null);
}
return(null);
}
//--------------------------------------------------------------------------------
// Converter
//--------------------------------------------------------------------------------
Func <object, object> IResultMapperCreateContext.GetConverter(Type sourceType, Type destinationType, ICustomAttributeProvider provider)
{
var converter = CreateHandler(destinationType, provider);
if (converter != null)
{
return(converter);
}
if ((destinationType == sourceType) ||
(destinationType.IsNullableType() && (Nullable.GetUnderlyingType(destinationType) == sourceType)))
{
return(null);
}
return(objectConverter.CreateConverter(sourceType, destinationType));
}