IntelliJ IDEA plugin for Frege language

What is Frege

Frege is a Haskell for the JVM. It is functional, has strong static type system and lazy evaluations, but Frege compiles to Java and runs on JVM. Also, it can use any Java library and can be used inside any Java project.

Installation

Plugin is available on JetBrains plugin repository.

Current progress

Features implemented partially or completely:

Lexer
Parser
Syntax highlighting and color schemes
Gradle-based build system
Navigation
Find usages
Code completion
Rename refactoring
File templates
Index files
Frege REPL
'Add import' quickfix for unresolved references
Documentation viewer

Features desired:

Structure view
Formatter
More quickfixes
More refactorings
Type system
and more

Examples

Below you can see examples of our plugin:

Navigation
Navigation depends on imports
Navigation to Java (and other JVM-languages)
Navigation from Java (and other JVM-languages)
Line markers
- To type annotation
- To instanced methods and vice versa
- Run Frege
Find usages
Code completion
Rename refactoring
Add import quickfix
Documentation viewer
REPL integration
REPL: execute parts of code