scala-macro-tools

Motivation

Learn Scala macro and abstract syntax tree.

The project is currently experimental

中文说明 | English

Environment

• It is compiled in Java 8, 11
• It is compiled in Scala 2.11.x ~ 2.13.x

Features

• @toString
• @json
• @builder
• @synchronized
• @log
• @apply
• @constructor
• @equalsAndHashCode
• @jacksonEnum
• @elapsed

The intellij plugin named Scala-Macro-Tools in marketplace.

Document

https://bitlap.org/lab/smt

How to use

Add library dependency

"io.github.jxnu-liguobin" %% "scala-macro-tools" % "<VERSION>"

The artefacts have been uploaded to Maven Central. Importing the library into your build system (e.g gradle, sbt), is not enough. You need to follow an extra step.

Scala 2.11	Scala 2.12	Scala 2.13
Import macro paradise plugin	Import macro paradise plugin	Enable compiler flag -Ymacro-annotations required

addCompilerPlugin("org.scalamacros" % "paradise_<your-scala-version>" % "<plugin-version>")

Where <your-scala-version> must be the full scala version. For example 2.12.13, and not 2.12.

If that doesn't work, google for alternatives.

In version scala2.13.x, the functionality of macro paradise has been included in the scala compiler directly. However, you must still enable the compiler flag -Ymacro-annotations.