micronaut-projects/micronaut-core

Scala Support: Add a scala compiler plugin

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#675 opened on Oct 3, 2018

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 (7 comments) (61 reactions) (0 assignees)Java (1,025 forks)batch import
help wantedtype: enhancement

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Description

Scala doesn't currently support Java's Annotation Processing API, instead they have a compiler plugin API.

The Micronaut team has no Scala experts as committers, this issue is here to track the fact this is a desired feature, that we are currently looking help for from the Scala community to implement.

For reference Groovy doesn't support APT either, only Kotlin and Java do. The Groovy implementation can be found at:

The Java/Kotlin implementation at:

Any takers?

Contributor guide

Research direction
Study the existing Groovy and Java/Kotlin annotation processor implementations in the Micronaut codebase. Understand Scala compiler plugin API and how it differs from annotation processing. Design a Scala compiler plugin that mimics the functionality of the existing processors.
Tech stack
javascala
Domain
backendapi
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
ScalaJavaCompiler Plugin API
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20