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.
• haskell-ide-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

Let's assume you want to load the haskell-ide-core source code in a VS Code IDE.

1. git clone https://github.com/digital-asset/daml.git
2. cd compiler/haskell-ide-core
3. stack build
4. cd extension
5. npm install
6. code .
7. Press F5 to start the extension.
8. In the spawned extension, open the folder haskell-ide-core.
9. In the preferences, set the Haskell IDE Core executable preference to stack and the arguments to exec -- ide-demo --ide .ghci
10. Run the Reload Window command in VS Code.

Now you should have a working IDE dealing with itself.

Installing the IDE permanently

1. cd compiler/haskell-ide-core/extension
2. vsce package
3. code --install-extension haskell-ide-core-0.0.1.vsix