No source code using ScalaTest/Scalactic 3.1.2 should break, so long as you fix all deprecation warnings prior to upgrading, but this release is not binary compatible with 3.1.2. option for standalone compiler for dotty 1-2 days scalafmt for Scala 3 2-3 months auto imports 2-3 weeks advanced completions 1-2 months Roadmap Milestone 4: worksheets alongside Mdoc 2-3 … Scala 3 will be a big step towards realizing the full potential of these ideas. Scala 2.14の開発に割くリソースをScala 3の開発に振り向けられるので、Scala 3の開発が加速される見込みです。 Scala 3.0は2020年末までのリリースを見込んでいる。 以前のロードマップでも2020年頃のリリースと言われていましたが、 eliminate inconsistencies and surprising behaviors. Its main objectives are to. And Dotty is available to work with right now. In this documentation you will find information on how to use the Dotty compiler on your machine, navigate through the code, setup Dotty with your favorite IDE and more! Dotty 发布了 3.0 的首个里程碑版本 3.0.0-M1,Dotty 作为 Scala 尝试新的语言概念以及编译器技术的研究平台,它最终将成为 Scala 3.0。 Scala 3 (dotty) is planned to be released at the end of 2020. Running the application using Dotty instead of Scala 2 If we want to explore features unique to Dotty, which will become Scala 3 near the end of 2020, with the application described in the previous paragraph, we first need a way to run an application that uses libraries such as the Akka 2.16.1 library that was built with Scala 2.13. Dotty 是一个为 Scala 尝试新的语言概念以及编译器技术的平台,它将最终成为未来的 Scala 3.0。资料: Dotty Dotty中文文档 lampepfl/dotty - github Dotty becomes Scala 3 Announcing Dotty 0.27.0-RC1 - ScalaJS, performance, stability Announcing Dotty 0.26.0-RC1 - unified extension methods and more Announcing Dotty 0.25.0-RC2 - speed-up of givens and change in the tuple API scala Artifact ch.epfl.lamp:dotty-language-server_0.5:0.5.0-RC1 Main class dotty.tools.languageserver.Main Args-stdio 上記設定に加え、scalaプラグインと処理が競合するのでscalaプラグインを無効にしておく必要があります。 IDEAの再 他の条件で計測した場合にどうなるのかわからないが、このままの速度を維持して欲しい。, xuweiさんは、はてなブログを使っています。あなたもはてなブログをはじめてみませんか?, Powered by Hatena Blog Did you ever wonder how JSON libraries like circe derive codecs for you from case classes and sealed traits? With all the promises and progress, The time for the release is very ScalaTest 3.1.0 only works with OLD Dotty 0.17 (Released back in July. hinastory/dotty_examples: Example code of Dotty (Scala 3) IndentBasedExample.scala 6. インデントベース構文の状況 インデントベースへの変更は実は2017年にOdersky先生が#2491で提案されていて、このときは大激論の末に一旦 3 Scala 3 (previously called dotty) is approaching its release ! For me one of the most exciting features are the metaprogramming abilities. | Now you can compile Scala source code: scalac hello.scala To start the REPL, run: scala. 目前,组织名为“ch.epfl.lamp”,将变更为“org.scala-lang”。 制品名称也将从“dotty-xxx”改为“scala3-xxx”。 这个变更将成为计划于10月1日的下一个Dotty版本(即Scala 3.0.0-M1)的一部分。 All of them shared their advice and encouraged the Scala Center to take part, and some of them (such as Lightbend, VirtusLab, Lunatech, 47 Degrees) with additional engineering resources and day-to-day logistics. Announcing Dotty 0.27.0-RC1 - ScalaJS, performance, stability, Announcing Dotty 0.26.0-RC1 - unified extension methods and more, Announcing Dotty 0.25.0-RC2 - speed-up of givens and change in the tuple API, Announcing Dotty 0.24.0-RC1 - 2.13.2 standard library, better error messages and more, Announcing Dotty 0.23.0-RC1 - safe initialization checks, type-level bitwise operations and more, Announcing Dotty 0.22.0-RC1 - syntactic enhancements, type-level arithmetic and more, Announcing Dotty 0.21.0-RC1 - explicit nulls, new syntax for `match` and conditional givens, and more, Announcing Dotty 0.20.0-RC1 – `with` starting indentation blocks, inline given specializations and more, Announcing Dotty 0.19.0-RC1 – further refinements of the syntax and the migration to 2.13.1 standard library, Announcing Dotty 0.18.1-RC1 – switch to the 2.13 standard library, indentation-based syntax and other experiments, Announcing Dotty 0.17.0-RC1 – new implicit scoping rules and more, Announcing Dotty 0.16.0-RC3 – the Scala Days 2019 Release, Announcing Dotty 0.15.0-RC1 – the fully bootstrapped compiler, Announcing Dotty 0.14.0-RC1 with export, immutable arrays, creator applications and more, Announcing Dotty 0.13.0-RC1 with Spark support, top level definitions and redesigned implicits, Announcing Dotty 0.2.0-RC1, with new optimizations, improved stability and IDE support, Announcing Dotty 0.1.2-RC1, a major step towards Scala 3, Dropped: private[this] and protected[this], Dotty Internals 1: Trees & Symbols (Meeting Notes). Scala 3 code now compiles into a new intermediate format: TASTy (short for Typed Abstract Syntax Trees), which can be used to generate JavaScript and different versions of … become more opinionated by promoting programming idioms we found to work well. See the getting started guide for tips. DottyがScala 3にならない可能性があるならば、IntelliJ IDEA ScalaプラグインがDottyの更新に追従してアップデートを提供する必要性は下がります。 IntelliJ IDEAの開発元であるJetBrainsがDottyのサポートに対して消極的になるのも無理はありませんね。 They have introduced given keyword which is considered as the alternative of Scala 2 implicit. Dotty, a comprehensive name for all the things that are being added to Scala 3.0 has been a topic of discussion in the Scala community for the last four years. With some small tweaks it is possible to cross-build code for both Scala 2 and 3. GitHub - lampepfl/dotty: The Scala 3 compiler, also known as Dotty. Scala 3のリサーチコンパイラである Dotty 0.18.1-RC1 にインデントベースの構文が実装されました Dotty 0.19.0-RC1 の変更に合わせて修正しました インデントベースの構文はまだ提案段階でありScala3の正式な仕様に決定したわけではありません build on strong foundations to ensure the design hangs well together. 3.0.0-M1出るらしいが、これ書いてる時点で出てない) Scala 2は2.13.3のみ(2.12.12もやればよかったが、scalaz最新は2.12サポート打ち切ってるので・・・scalaz 7.3 branchでやればよかったか・・・?と思いきや7.3は逆にDotty対応してない) Or, you can try Dotty in your browser with Scastie. Scala 3 and Scala 2 share the same standard library. Dotty is the project name for technologies that are considered for inclusion in Scala 3. Current version is 0.21) Dotty g8 templates use JUnit. With the Dotty compiler you can convert Scala 2 code to the new Scala 3 syntax, and with the Dotty 0.20.0-RC1 release on November 4, 2019, I thought I’d see how some of the conversions work. One of the few exception being DelayedInit used to implement JFXApp It should be possible to add cross compilation option It should be mostly compatible with Scala 2.13. Scala 2.13.3 と 3.0.0-M2-bin-20201031-1ab76c1-NIGHTLY をscalaz最新版でベンチマークしたところ、, めでたいなぁ。 Scala 3 code can use Scala 2 artifacts because the Scala 3 compiler understands the classfile format for sources compiled with Scala 2.12 and upwards. ブログを報告する, 2020年11月現在のScala 3(Dotty)とScala 2のコンパイル速度比較, https://github.com/xuwei-k/scalaz/commit/5956af9d2b280ef05b42eac9241c9b1c49f4a9e8, https://github.com/scalaz/scalaz/tree/8a2f260d49b9e2e1c31b58aad3f65c86c1be003e/core/src/main/scala-2/scalaz, https://github.com/scalaz/scalaz/tree/8a2f260d49b9e2e1c31b58aad3f65c86c1be003e/core/src/main/scala-3/scalaz, scala-stewardを独自に作ったGitHub App(bot)で動かす方法, sbt 1.4のremote cacheを試してbug報告やpull reqした記録, Dottyは、最新版と、最新版安定版?というかNightlyではない0.27.0-RC1の両方やった(あと数日で? 3.0.0-M1出るらしいが、これ書いてる時点で出てない). Planning your Migration • Scala 3 and Scala 2 share the same standard library. The Scala Center Advisory Board companies are supporting the Scala 3 release in different manners & capacities. This is a good opportunity to have a deeper look at some new features it offers. Now that Dotty is finally destined to become Scala 3 and the language features are getting more stable, we have started to work on a full-fledged Scala 3 support. 今回はScala 3.0の主要機能の一つenumについて紹介します。 2019å¹´12月現在Scalaの最新バージョンは2.13ですが、2020年中にScala 3.0のリリースが予定されています。正式リリースに向けてScala 3.0用コンパイラはDottyという… 力になったりするらしい.公式サイトは, https://dotty.epfl.ch/ .お試し利用がかなり気軽にできて公式サイトにやり方が載ってる. ScalaTest/Scalactic 3.2.0 (for Scala 2.10, 2.11, 2.12, and 2.13; on the JVM, JavaScript, native, and Dotty) includes the enhancements and bug fixes listed below. consolidate language constructs to improve the language’s consistency, safety, ergonomics, and performance. I was going through Scala 3 documentation. Scala has pioneered the fusion of object-oriented and functional programming in a typed setting. Scala 3 may be a few years away, but as we all know, Dotty is Scala 3. 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