ExpressiveJava: Re-implementing a simple Scala interpreter in JDK 8/15/17. JDK 17 code nearly identical with use of Records + Pattern Matching + Sealed Types.

• expressive-java

  6 14 0.0 Java

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

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: - Scala: https://www.scala-lang.org/old/node/56.html - JDK 17 Java: https://github.com/Randgalt/expressive-java/blob/master/java-17/src/main/java/examples/SimpleInterpreter.java

• record-builder

  35 647 7.2 Java

  Record builder generator for Java records

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• Immutables

  6 3,365 7.1 Java

  Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included

  

That's good, but I prefer this : https://github.com/immutables/immutables It has all sorts of neat stuff like lazy, defered, cached, defaults etc. Just needs updating to use records.

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