Optimize Imports

Native

Goal

Clean up redundant and duplicate open statements in your ReScript files to keep imports tidy and reduce noise.

Steps

1. Run Optimize Imports

With a .res file open, press Ctrl+Alt+O (Cmd+Alt+O on macOS), or use Code > Optimize Imports from the menu.

The plugin scans the file and automatically removes:

  • Duplicate opens — When the same module is opened more than once

open Belt
open Belt.Array
open Belt  // duplicate

let arr = [1, 2, 3]
let doubled = arr->Array.map(x => x * 2)

open Belt
open Belt.Array

let arr = [1, 2, 3]
let doubled = arr->Array.map(x => x * 2)

2. Review inspection warnings

The Duplicate Open Detection inspection highlights redundant opens in real time as you edit. Look for yellow warning underlines on open statements.

Hover over the warning to see the details, or press Alt+Enter for a quick fix to remove the duplicate.

3. Configure auto-optimization (optional)

To run import optimization automatically on save or reformat:

  1. Open Settings > Editor > Auto Import

  2. Under the ReScript section, configure the auto-import behavior

  3. Click Apply

You can also run import optimization as part of Code > Reformat Code (Ctrl+Alt+L / Cmd+Alt+L) by checking the Optimize imports option in the reformat dialog.

4. Project-wide optimization

To optimize imports across the entire project:

  1. Select the project root (or a directory) in the Project panel

  2. Use Code > Optimize Imports (Ctrl+Alt+O / Cmd+Alt+O)

  3. Review the preview of changes and click Run

Expected Result

All .res files in the selected scope have clean, non-redundant open statements.

Tips

  • Combine import optimization with Reformat Code for a one-step cleanup workflow

  • The inspection can be configured in Settings > Editor > Inspections > ReScript > Duplicate open statement

  • Use // noinspection RescriptDuplicateOpen to suppress the warning for intentional duplicates