rescript-vscode

The official VSCode plugin for ReScript.

Prerequisite

You must have bs-platform 8.3.3 installed locally in your project, through the usual npm installation. Older versions are not guaranteed to work.

Installation

The plugin's on VSCode Marketplace. In VSCode, cmd-shift-p -> "Install Extensions", then find "rescript-vscode".

The plugin activates on .res and .resi files. If you've already got Reason-Language-Server installed, it's possible that the latter took precedence over this one. Make sure you're using this plugin ("ReScript syntax") rather than Reason-Language-Server ("BuckleScript syntax").

Features

• Supports .res, .resi and bsconfig.json.
• Syntax highlighting.
• Formatting, with caveats:
  • Currently requires the file to be part of a ReScript project, i.e. with a bsconfig.json.
  • Cannot be a temporary file.
• Syntax errors diagnosis (only after formatting).
• Built-in bsb watcher (optional, and exposed explicitly as a pop-up; no worries of dangling build).
• Type hint.
• Jump to location.
• Autocomplete.
• Snippets to ease a few syntaxes:
  • external features such as @bs.module and @bs.val
  • try, for, etc.

Upcoming Features

• Formatting of temporary files
• Formatting of files outside of a ReScript project root