8000 [Issue #32] Merge case classes by arainko · Pull Request #35 · arainko/ducktape · GitHub
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[Issue #32] Merge case classes #35

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Merged
merged 5 commits into from
Feb 10, 2023
Merged

[Issue #32] Merge case classes #35

merged 5 commits into from
Feb 10, 2023

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arainko
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@arainko arainko commented Feb 10, 2023 •
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Closes #32

Adds a new configuration option for case class to case class transformations (can also be implemented for Arg), Field.allMatching, example usage looks like this:

import io.github.arainko.ducktape.*

final case class Person(firstName: String, lastName: String, age: Int)
final case class PersonButMoreFields(firstName: String, lastName: String, age: Int, socialSecurityNo: String)
val person = Person("Jerry", "Smith", 20)

final case class FieldSource(lastName: String, socialSecurityNo: String)
// 4. Grab and use all matching fields from a different case class (a compiletime error will be issued if none of the fields match)
val withAllMatchingFields = 
  person
    .into[PersonButMoreFields]
    .transform(Field.allMatching(FieldSource("SourcedLastName", "SOURCED-SSN")))
// withAllMatchingFields: PersonButMoreFields = PersonButMoreFields(
//   firstName = "Jerry",
//   lastName = "SourcedLastName",
//   age = 20,
//   socialSecurityNo = "SOURCED-SSN"
// )

It'll also issue a compiletime failure in case none of the fields of the case class you pass in match the any of the fields from the source case class

@arainko arainko merged commit d5ddb67 into master Feb 10, 2023
@arainko arainko deleted the issue#32-merge-case-classes branch February 12, 2023 13:06
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Allow merging case classes
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@arainko
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