ExpressiveJava: Rewriting simple Scala interpreter – JDK17 code nearly identical

• expressive-java

  6 14 0.0 Java

  Example of matching Scala's case class expressiveness in Java 8, Java 15 and Java 17

I wanted to share this little project I found. The author has been writing Java re-implementations of the same Scala interpreter over the years as newer JDK versions & features are released.

With JDK17 and the introduction of Record types, sealed classes/interfaces, and pattern-matching the implementation can come close to ver-batim mirroring the Scala 2 one:

https://github.com/Randgalt/expressive-java/blob/master/java...

Unfortunately, the Scala org website is down right now, so the original code can be viewed here for the moment:

https://web.archive.org/web/20200103022853/https://www.scala...

(Or also in the repo: https://github.com/Randgalt/expressive-java/blob/master/scal...)

The final feature that is needed to really seal the deal, is part of JEP 405 for destructuring + binding to values in patterns ("Deconstruction patterns"):

https://github.com/Randgalt/expressive-java/issues/3

https://openjdk.java.net/jeps/405

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

Suggest a related project