Class: Rubocop::Cop::CustomErrorClass
- Inherits:
-
RuboCop::Cop::Base
- Object
- RuboCop::Cop::Base
- Rubocop::Cop::CustomErrorClass
- Extended by:
- RuboCop::Cop::AutoCorrector
- Defined in:
- lib/rubocop/cop/custom_error_class.rb
Overview
Makes sure that custom error classes, when empty, are declared with Class.new.
Constant Summary collapse
- MSG =
'Use `Class.new(SuperClass)` to define an empty custom error class.'
Instance Method Summary collapse
Instance Method Details
#on_class(node) ⇒ Object
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# File 'lib/rubocop/cop/custom_error_class.rb', line 23 def on_class(node) parent = node.parent_class body = node.body return if body parent_klass = class_name_from_node(parent) return unless parent_klass&.to_s&.end_with?('Error') add_offense(node) do |corrector| klass = node.identifier parent = node.parent_class replacement = "#{class_name_from_node(klass)} = Class.new(#{class_name_from_node(parent)})" corrector.replace(node, replacement) end end |