'case' statement without 'else' block

Last modified: 03 December 2024

Reports case statements without else blocks. An else block should always be present to specify the default result if no match is found.

Example:

# Bad practice
case status
when :active
  perform_action
end

A quick-fix is available to insert an else block. After the quick-fix is applied, the result looks like this: 

# Good practice
case status
when :active
  perform_action
else
  # type code here
end

Inspired by 'Roodi'

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

RubyCaseWithoutElseBlockInspection
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Ruby | Control flow issues

Inspection Details

By default bundled with:

Qodana for Ruby 2024.3, RubyMine 2024.3,

Can be installed with plugin:

Ruby, 243.23135