Literal class referenced

Reports references to the classes NilClass, TrueClass, and FalseClass in type signatures. Usage of these classes is unnecessarily verbose.

A quick fix is available to replace the NilClass, TrueClass, or FalseClass usage with its respective literal.

Example:

# 'NilClass' referenced instead of 'nil', ...
type example = NilClass | TrueClass | FalseClass

After the quick fix:

type example = nil | true | false

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.

RbsLiteralClassReferenced

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 | RBS | Code style issues

Inspection Details
By default bundled with:	Qodana for Ruby 2025.1, RubyMine 2025.1,
Can be installed with plugin:	Ruby, 251.24752

01 April 2025