softwaremill / softwaremill/tapir

[BUG] Codec.derivedValueClass with inner value class

Open
#2,750 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Scala
Stars
1.5k
Forks
468
Avg merge
5h 37m
Merged PRs (30d)
34

Description

Tapir version: 1.2.9

Scala version: 2.13.10

Describe the bug

There's compilation error when trying to derive an inner value class with the Codec.derivedValueClass method.

How to reproduce?

import sttp.tapir.Codec

object Outer{
  case class InnerV(v: String) extends AnyVal
}

Codec.derivedValueClass[Outer.InnerV] 
//[error] not found: type InnerV

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with Codec.derivedValueClass and reproduce the compilation error using the nested Outer.InnerV example from the issue. Trace how the method derives a codec for an inner value class; done means the example compiles successfully for Outer.InnerV without the not-found type error.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
api
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.