Scala Compiler Plugin: Annotation-Based Method AST Rewriting

This repository contains a Scala compiler plugin example that demonstrates basic annotation parsing, AST traversal, and method body replacement. It substitutes the block of a method (DefDef) with an inner method, allowing the original code to be wrapped and additional behavior injected.

https://medium.com/@adrian.n/scala-compiler-plugin-annotation-based-method-ast-rewriting-wrapping-substitution-b802f2d922f1

Overview

This plugin showcases:

Parsing annotations
Traversing the Abstract Syntax Tree (AST)
Replacing method bodies (DefDef)

The plugin rewrites annotated methods to include additional behaviour, such as logging or remote execution, without modifying the original method code.

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!