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VS Code Extension

DCM VS Code extension is responsible for starting the analysis process and displaying analysis errors.

To download the extension, view the extension page on VS Code Marketplace or simply search DCM in the VS Code extensions panel.

Extension capabilities

All the errors calculated by the analysis process will be displayed in the opened files and in the "Problems view".

Quick fixes are also available, simply call the quick fix menu on the issue in the opened file.

You can quickly fix all fixable DCM rule issues with "DCM: Fix All Auto-fixable Problems" IDE command or via a shortcut ⌘ + Shift + S.

To apply fixes on save, modify the settings.json to the following:

"editor.codeActionsOnSave": {
"source.fixAll": true,
"source.dcm.fixAll": true


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Extract to a new file

Analysis options files

If analysis_options.yaml file is open, the extension will mark all rules that support additional config with ⚙️ icon.

You can also call code action menu on each rule to quickly change its severity, disable it or open the rule documentation.

Analysis options code actions preview

Available commands

  1. DCM > Restart Analysis server
  2. DCM > Activate License key
  3. DCM > Share Feedback
  4. DCM > Capture All Logs
  5. DCM > Open Extension Log
  6. DCM > Fix All Auto-fixable Problems
  7. DCM > Format Current File

Available configuration

  1. Dart SDK path - is detected automatically if listed in PATH, but can be set up explicitly, if another version of the SDK should be used. FVM is also supported, if the project has a .fvm/flutter_sdk symlink - it will be used by the extension as well.
  2. DCM executable path - is detected automatically if listed in PATH, but can be set up explicitly.


See the changelog.