Unnecessary parentheses

Reports unnecessary parentheses within function types. Functions without parameters do not require parentheses.

A quick fix is available to remove the unnecessary parentheses.

Example:

class Example
  # Unnecessary parentheses in function type
  def call: () -> untyped
end

After the quick fix:

class Example
  def call: -> untyped
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.

RbsUnnecessaryParentheses

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