THIS PLUGIN IS EXPERIMENTAL and can crash at any time! Please report all bugs!

This plugin is providing support for Common Lisp for JetBrains IDEs. Using modified SLIME/Swank protocol to communicate with lisp interpret providing IDE capabilities for Common Lisp.

You can now download the plugin from marketplace! https://plugins.jetbrains.com/plugin/21132-slt

https://github.com/Enerccio/SLT/wiki/User-Guide

1. RustRover 2026.2.x (IntelliJ Platform build 262). The build target is RustRover 2026.2.2.

Optionally (see more - guide):

1. One of the supported LISP Interprets installed:
   • Steel Bank Common Lisp
   • Armed Bear Common Lisp
   • Clozure Common Lisp
   • Allegro CL
   • CMUCL
2. Quicklisp installed

(Not all features work with all interprets, see FEATURES.md for more info!)

See https://github.com/Enerccio/SLT/wiki/User-Guide#plugin-installation

• See guide above for SDK
• For changing colors https://github.com/Enerccio/SLT/wiki/User-Guide#change-colors-of-elements
• For changing indent https://github.com/Enerccio/SLT/wiki/User-Guide#change-indentation-settings

Use JDK 25. Set JAVA_HOME to its installation directory, then run:

./gradlew buildPlugin test verifyPlugin

The RustRover version is set by platformVersion in gradle.properties. To build and verify against a local RustRover installation on macOS:

export JAVA_HOME=/Applications/RustRover.app/Contents/jbr/Contents/Home
./gradlew -PlocalIdePath=/Applications/RustRover.app buildPlugin test verifyPlugin

Install build/distributions/slt-0.5.5.zip from Settings > Plugins > gear menu > Install Plugin from Disk, then restart RustRover.

• Upload to marketplace when it has enough features
• Automatic indentation
• REPL
  • REPL return inspection
• Interactive debugging
• Argument help (Ctrl+P)
• Inspection
  • Basic inspection
  • Actions
  • Symbol inspector
  • Inspection eval
• Breakpoints
• Documentation
  • Hyperspec intergration
• Macro expand (all, 1, normal)
• Find function by symbol name
• Search for symbols
• Back references
• Rainbow braces
• Refactoring
  • Extracting lambda to function
• List of quicklisp installed packages / ASDF packages
• List of modified top level forms that are yet to be evaluated
• Actually make an IDE, ie just plugin with dependencies as one application, not a plugin
• SDK Support
  • not a true SDK because that is only available in Intellij and not in (for instance) PyCharm, thus this is implemented manually.
  • Download SBCL and quicklisp for user
• Automatic download of lisp interpret and quicklisp
• Different lisp interpreter support

This project is licensed under Apache License v2.

• Please install the plugin and try it out!
• Report all bugs so I can catch them all. Click here to report.
• If you like the project, consider starring it or spreading info about it
• This project is OSS so if you have knowledge and want to implement something you can fork the repo and then create PR!

If you feel like it, you can donate to support my work via Liberapay or Patreon.

SLT - Speech Language Therapy. Only cure for LISP!

Also, backronym for Superior Lisp Tooling!