Simplifiable 'if' statement

Reports if statements that can be replaced with case statements.

Use the Minimum number of branches field to specify the minimum number of when branches for the resulting case statement.

Example:

fruit = gets

if fruit == 'apple' # Simplifiable 'if' statement
  puts 'This is apple!'
elsif fruit == 'peach'
  puts 'This is peach!'
elsif fruit == 'orange'
  puts 'This is orange!'
elsif fruit == 'banana'
  puts 'This is banana!'
end

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.

RubyIfCanBeCaseInspection

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 options

Here you can find the description of settings available for the Simplifiable 'if' statement inspection, and the reference of their default values.

Minimum number of branches: 3

Availability

By default bundled with: Qodana for Ruby 2024.1, RubyMine 2024.1,
Can be installed with plugin: Ruby, 241.SNAPSHOT

Last modified: 18 June 2024