tammo0987 / automapper

Generate mappings between algebraic data types.

Hi 👋, I'm Tammo

• 🔎 Interested in JVM technologies
• 🎓 I studied computer science at the University of Bremen

automapper's Issues

Basic product derivation

The derivation should be able to map products and their fields by name and type.

Add Scalafmt check to pipeline

To the GitHub automation a new task should be added, which uses scalafmt to check the formatting of the project.

Setup Project

A sbt project should be setup with a first project structure.

Add default mappers

Some default mappers should be created. So that the following types could be mapped automatically:

• Iterable[F] => Iterable[T] (Collections and Maps)
• Option[F] => Option[T] (probably the same as number one)
• Either[L1, R1] => Either[L2, R2]

This issue needs more preparation.

Add support for value classes

Support for (un-)wrapping value classes should be added. If the types of two fields equals a value class and the inner type, this should be automatically mapped. These feature should be also configurable.

Add support for default values

Default values from constructors should be also used, if the value is not provided otherwise. This feature should be configurable.

Create documentation

Deep Mapper generation

Mappers should be generated also for inner adts, if possible. This feature should be also configurable.

Create API for Mapper derivation

The Mapper trait should be created. It should be able to this:

• map function
• creation of identity mapper
• composition of mappers

Also the syntax/dsl for deriving such mappers should be created.

Create basic derivation configuration

The derivation should be able to receive some kind of configuration. This has to be understand at compile-time.

Add derivation of sums

It should be possible, to map variants from a sum to variants from another sum by name. This mapper should be able to derive automatically. Sealed traits as well as enums should be supported.

Add transformations for mapper

Manual transformations for the mappers should be created. The following should be implemented:

1. Map fields with different name to each other
2. Add constant for field
3. Compute value for field based on source product

Transformation should have a higher priority than automatic derivation. Also always the latest defined transformation (if defined) should be used.

Create CI automation

A CI/CD automation should be created, to build and test the implementation.