class RuboCop::Cop::InternalAffairs::SingleLineComparison
Enforces the use of ‘node.single_line?` instead of comparing `first_line` and `last_line` for equality.
@example
# bad node.loc.first_line == node.loc.last_line # bad node.loc.last_line == node.loc.first_line # bad node.loc.line == node.loc.last_line # bad node.loc.last_line == node.loc.line # bad node.first_line == node.last_line # good node.single_line?
Constants
- MSG
- RESTRICT_ON_SEND
Public Instance Methods
on_send(node)
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# File lib/rubocop/cop/internal_affairs/single_line_comparison.rb, line 42 def on_send(node) return unless (receiver = single_line_comparison(node)) bang = node.method?(:!=) ? '!' : '' preferred = "#{bang}#{extract_receiver(receiver)}.single_line?" add_offense(node, message: format(MSG, preferred: preferred)) do |corrector| corrector.replace(node, preferred) end end
Private Instance Methods
extract_receiver(node)
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# File lib/rubocop/cop/internal_affairs/single_line_comparison.rb, line 55 def extract_receiver(node) node = node.receiver if node.send_type? && %i[loc source_range].include?(node.method_name) node.source end