public MapperConfiguration Register <TSource, TDestination, TPropertyType>(
Expression <Func <TSource, TPropertyType> > sourcePropertyAccessor,
Expression <Func <TDestination, TPropertyType> > destinationPropertyAccessor) where TDestination : new()
{
if (sourcePropertyAccessor == null)
{
throw new ArgumentNullException(nameof(sourcePropertyAccessor));
}
if (destinationPropertyAccessor == null)
{
throw new ArgumentNullException(nameof(destinationPropertyAccessor));
}
PropertyInfo sourceProperty = GetPropertyInfo(sourcePropertyAccessor);
PropertyInfo destinationProperty = GetPropertyInfo(destinationPropertyAccessor);
if (!destinationProperty.CanWrite)
{
throw new ArgumentException("Destination property doesn't have setter.");
}
Type sourceType = sourceProperty.PropertyType;
Type destinationType = destinationProperty.PropertyType;
if (!TypesHelper.CanAssign(sourceType, destinationType))
{
throw new ArgumentException("Incompatible types.");
}
var mappingTypesPair = new MappingTypesPair
{
Source = typeof(TSource),
Destination = typeof(TDestination)
};
var newMapping = new MappingPropertiesPair
{
SourceProperty = sourceProperty,
DestinationProperty = destinationProperty
};
List <MappingPropertiesPair> registeredMappings;
if (!_configuration.TryGetValue(mappingTypesPair, out registeredMappings))
{
registeredMappings = new List <MappingPropertiesPair>();
_configuration[mappingTypesPair] = registeredMappings;
}
registeredMappings.Add(newMapping);
return(this);
}
// Internals
protected bool Equals(MappingPropertiesPair other)
{
return(Equals(SourceProperty, other.SourceProperty) && Equals(DestinationProperty, other.DestinationProperty));
}