Cannot use ImplicitCollectionMappingTransformer with DSL?

[victormikhailov77]

Hello!
I need to map machine-generated DTOs to object model, and I cannot annotate them , so im trying to convert previously annotation-based code to Kotlin DSL. While this is working fine for singluar fields, I cannot use this approach for collections - it shows compilation error.

example:

val mapper = mapper<FilterDto, Filter> {
     autoMap(AutoMappingStrategy.BY_NAME)
          FilterDto::targetTransformations mappedTo Filter::targetTransformations withTransformer ImplicitCollectionMappingTransformer::class. 
          FilterDto::valueTransformations mappedTo Filter::valueTransformations withTransformer ImplicitCollectionMappingTransformer::class
}    

which gives me compilation error "None of the following functions can be called with the arguments supplied:" on withTransformer usage.

Previous (annotation based) version was like this:

@MappedField(transformer = ImplicitCollectionMappingTransformer::class) val targetTransformations: List<TransformationDto>? = emptyList(),

What is correct usage of DSL-based version of ImplicitCollectionMappingTransformer ?

[victormikhailov77]

neither I can define my own transformer for List to List mapping;

class TransformationTransformer : MappingTransformer<List<TransformationDto>?, List<Transformation>?> {
    
override fun transform(context: MappingTransformerContext<out List<TransformationDto>?>): List<Transformation>? {
   }
}

compilation error, when I add it to ShapeShiftBuilder transformers list:

        val shapeShift = ShapeShiftBuilder()
            .withMapping(mapper.mappingDefinition)
            .withTransformer(FilterTargetTransformer())
            .withTransformer(TransformationTransformer())
            ^^^^^^^^^ ERROR ^^^^^^^^
            .build()

Required:
MappingTransformerRegistration<out Any, out Any>
Found:
TransformationTransformer