Question 1

How do I set up Alchemist Server with Vim for Elixir code completion?

Accepted Answer

You need to start the server in your Elixir Mix project using 'elixir run.exs --env=dev', then write a Vim plugin that sends COMP requests via STDIN or Unix sockets, as detailed in the API section for completion.

Question 2

Alchemist Server or ElixirLS: which is better for Emacs?

Accepted Answer

Alchemist Server is editor-agnostic and lightweight, ideal for custom Emacs integrations, while ElixirLS is a more feature-rich LSP server with broader community support. Choose Alchemist if you prefer flexibility over out-of-the-box features.

Question 3

Does Alchemist Server support macro expansion in Elixir?

Accepted Answer

Yes, it supports macro expansion through EVAL requests with :expand or :expand_once types, allowing you to see how macros transform code by providing a file path with the content to expand.

Question 4

What editors have plugins for Alchemist Server?

Accepted Answer

Since it's editor-agnostic, plugins exist for editors like Vim and Emacs, but you may need to build or configure them yourself, as the server provides a simple protocol via STDIN or sockets for any client.

Question 5

Can Alchemist Server handle multiple Elixir projects at once?

Accepted Answer

No, it's designed to run within a specific Elixir Mix project directory, so you'd need to start separate server instances for each project, which can be cumbersome for multi-project setups.

Question 6

How to debug if Alchemist Server isn't responding?

Accepted Answer

Use the PING request to check server availability, and ensure you're in the correct Mix project directory with proper communication mode (STDIN or socket), as outlined in the debugging section of the README.

Alchemist-Server

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