Collection-Strawman

Implementation of the new collections of Scala 2.13.

• Gitter Discussion
• Dotty Issue
• Scala Center Proposal

The implementation of the collections has been merged to the scala/scala repository. Contributions should now target the scala/scala repository (branch 2.13.x). The current scala/collection-strawman repository is only used as an issue tracker.

Thanks to Git, you can still look up the code before it was deleted from this repository by browsing the before-deletion branch.

Current Status and Roadmap

The new collections will be included in the standard library of Scala 2.13.0-M4.

You can currently use a pre-release of 2.13.0-M4:

scalaVersion := "2.13.0-M4-pre-20d3c21"

Use the last library release in your project

Before 2.13.0-M4 is released you can use the previous releases of the collections (published as an external library). The collections live in the strawman.collection namespace (instead of scala.collection).

Add the following dependencies to your project:

libraryDependencies += "ch.epfl.scala" %% "collection-strawman" % "0.9.0"
libraryDependencies += "ch.epfl.scala" %% "collections-contrib" % "0.9.0" // optional

The 0.9.0 version is compatible with Scala 2.13-M2 and Dotty 0.6. Scala 2.12 is also supported but you might encounter type inference issues with it.

API Documentation

• collection-strawman
• collections-contrib

Contributing

We welcome contributions!

For more information, see the CONTRIBUTING file.