IntelliJ Scala Plugin 2023.2 Is Out!
Better Scala 3 Support
IntelliJ IDEA 2023.2 brings enhanced Scala 3 support, with a focus on providing a streamlined development experience. Notable improvements include fixes for Scala 3 enum highlighting, navigation to enum definitions, and the correct resolution of enum cases in various contexts. The TASTy decompiler has been significantly enhanced, ensuring accurate decompilation of popular Scala libraries, such as Akka, Cats, Play, ZIO, and others. Additionally, the integration of scala-expression-compiler into the debugger provides a better debugging experience for Scala developers. Other improvements include enhanced completion hints for Scala 3’s Universal Apply Methods, in-editor support for IArray, and improved support for the “fewer braces” syntax.
Better sbt support
This release comes with many improvements to IntelliJ IDEA’s sbt support. Environment variables set for sbt are persisted and handled correctly after the project is reopened. The settings page File | Settings | Build, Execution, Deployment | Build Tools | sbt was redesigned for easier use, and a new Environment variables field was added so that you can now pass custom environment variables to the sbt-shell process.
Fixed type inference errors
The new release comes with many fixes to invalid type inference in some complex or just rare cases, such as when types have complicated bounds , when a sealed trait hierarchy might be unclear, or in complex pattern matching.
Finally, starting from this release, ScalaDoc Quick Documentation becomes more similar to quick documentation in JavaDoc. Annotations, keywords, and literals in the displayed declarations are now highlighted according to the used IntelliJ theme. The list of extended traits/classes is split into many lines if it’s too long to fit in one. Also, the new Scala 3 keywords are supported.
Zinc as the default compiler
In light of Zinc’s recent performance improvements, we’ve made it the default incremental compiler in v2023.2. This ensures comprehensive support for incremental compilation of new Scala 3 features, including inline methods.
Improved sources and target directories management
Sub-folders of the target folder are no longer included automatically as sources unless they are marked as managed. This speeds up searching in projects that generate source code. Also, the IDE now provides better support for sbt-projectmatrix.
The IntelliJ Scala plugin team
IntelliJScala @ Scala Days 2023 Madrid
On September 12 – 14, the Scala Plugin team was in Madrid for the Scala Days conference. JetBrains was a Gold Sponsor for the event and we are very proud of it. We came to Madrid with a booth, merchandise, and a talk about the IntelliJ Scala Plugin. The Scala Plugin has seen a lot of improvements…
IntelliJ Scala Plugin 2023.1 Is Out!
Improved support for braceless Scala syntax IntelliJ IDEA can now desugar braceless Scala code properly, and it handles refactorings where the “fewer braces” feature is used. It also supports braceless syntax in worksheets and correctly interprets indentation when you move extensions methods up a…
Performance tips for IntelliJ Scala Plugin
A full-blown IDE is one of the most complicated applications you can find on an average laptop. This is why we – the Scala plugin team at JetBrains – from time to time receive reports that our product lags in certain situations or works slowly in general. In some of these cases we can help, but in o…
IntelliJ Scala Plugin 2022.3 Is Out!
This release has been again focused on Scala 3, but there are also quite a few other improvements. Better Scala 3 support In v2022.3, we’ve introduced a large number of upgrades to provide better Scala 3 support. The IDE now supports parameter untupling and quoted patterns, and it features man…