class RuboCop::Cop::Style::MissingRespondToMissing
Checks for the presence of ‘method_missing` without also defining `respond_to_missing?`.
@example
#bad def method_missing(name, *args) # ... end #good def respond_to_missing?(name, include_private) # ... end def method_missing(name, *args) # ... end
Constants
- MSG
Public Instance Methods
on_def(node)
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# File lib/rubocop/cop/style/missing_respond_to_missing.rb, line 27 def on_def(node) return unless node.method?(:method_missing) return if implements_respond_to_missing?(node) add_offense(node) end
Also aliased as: on_defs
Private Instance Methods
implements_respond_to_missing?(node)
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# File lib/rubocop/cop/style/missing_respond_to_missing.rb, line 37 def implements_respond_to_missing?(node) return false unless (grand_parent = node.parent.parent) grand_parent.each_descendant(node.type) do |descendant| return true if descendant.method?(:respond_to_missing?) child = descendant.children.first return true if child.respond_to?(:method?) && child.method?(:respond_to_missing?) end false end