Scala road map 2019

What we've learned at ScalaDays19 in Lausanne - some plans on Scala and Scala plugin development.

Transcript

1. Scala road map 2019 Mikhail Mutcianko JetBrains June 27, 2019 1
2. Scala3 state tl;dr dotty.epfl.ch/docs/reference/overview.html new type system union, Intersection types type lambdas implicit function types implicits → delegates and given early initializers → trait parameters implicit classes → extension methods . . . 2
3. IDE support in mind New fast presentation compiler Metals? TASTY Abstract macro system 3
4. Scala support in IntelliJ IntelliJ Lexer, Parser Typechecker . . . JPS SBT Scala compiler Lexer, Parser Typechecker BCode . . . Scala library 2.11 Scala library 2.12 Scala library 2.13 Compile / 4
5. Where we are now Dotty project type → Dotty types → Dotty typechecker Presentation compiler backend TASTY decompiler Macro backend 5
6. Challenges Typechecker Support all scala versions Different parsers Different type systems Different decompilers Macros Inline on typer level Serialization when running whitebox macro 6