Haskell IDE Core

Our vision is that you should build an IDE by combining:

• hie-bios for determining where your files are, what the dependencies, what extensions are enabled etc.
• hie-core - this library - for defining how to type check, when to type check, and producing messages.
• haskell-lsp for sending those messages to an LSP server.
• A VS Code extension, e.g. extension in this directory.

There are more details in this blog post.

How to use it

Installing the binary

1. git clone https://github.com/digital-asset/daml.git
2. cd daml/compiler/hie-core
3. stack build

Installing the VSCode extension

1. cd compiler/hie-core/extension
2. npm ci
3. vsce package
4. code --install-extension hie-core-0.0.1.vsix

Installing in Emacs

1. Install lsp and haskell-lsp
2. Add this elisp to your .emacs.el

(require 'lsp)
(require 'lsp-haskell)
(require 'yasnippet)
(add-hook 'haskell-mode-hook #'lsp)
(setq lsp-haskell-process-path-hie "hie-core")
(setq lsp-haskell-process-args-hie '())