ghc-server

A server interface to GHC. Work in progress. No official release yet.

Purpose

Server that accepts commands and responds with structured data on compiling, type info, compiler messages, etc. via s-expressions (and possibly JSON in the future).

Architecture

• Asynchonrous s-expression-based communication layer
• Sessions per project
• Possible to connect to remote instances over TCP
• Supports hsenv and sandboxes

Features

• Type checking
• Interactive REPL
• Type info of top-level or sub-expressions
• Go to definition
• Kind info

See TODO.org for planned features.

Major GHC releases supported

I test compilation against the following GHC versions:

• GHC 7.4
• GHC 7.8
• GHC 7.6

This is achieved via a wrapper module called GHC.Compat which wraps any function or type that has changed between GHC versions.