class RuboCop::Cop::Style::ObjectThen
Enforces the use of consistent method names ‘Object#yield_self` or `Object#then`.
@example EnforcedStyle: then (default)
# bad obj.yield_self { |x| x.do_something } # good obj.then { |x| x.do_something }
@example EnforcedStyle: yield_self
# bad obj.then { |x| x.do_something } # good obj.yield_self { |x| x.do_something }
Constants
- MSG
Public Instance Methods
on_block(node)
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# File lib/rubocop/cop/style/object_then.rb, line 34 def on_block(node) check_method_node(node.send_node) end
Also aliased as: on_numblock
on_send(node)
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# File lib/rubocop/cop/style/object_then.rb, line 40 def on_send(node) return unless node.arguments.one? && node.first_argument.block_pass_type? check_method_node(node) end
Private Instance Methods
check_method_node(node)
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# File lib/rubocop/cop/style/object_then.rb, line 48 def check_method_node(node) return unless preferred_method?(node) message = message(node) add_offense(node.loc.selector, message: message) do |corrector| prefer = style == :then && node.receiver.nil? ? 'self.then' : style corrector.replace(node.loc.selector, prefer) end end
message(node)
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# File lib/rubocop/cop/style/object_then.rb, line 70 def message(node) format(MSG, prefer: style.to_s, current: node.method_name) end
preferred_method?(node)
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# File lib/rubocop/cop/style/object_then.rb, line 59 def preferred_method?(node) case style when :then node.method?(:yield_self) when :yield_self node.method?(:then) else false end end