class RuboCop::Cop::Lint::MultipleCompare
In math and Python, we can use `x < y < z` style comparison to compare multiple value. However, we can't use the comparison in Ruby. However, the comparison is not syntax error. This cop checks the bad usage of comparison operators.
@example
# bad x < y < z 10 <= x <= 20
@example
# good x < y && y < z 10 <= x && x <= 20
Constants
- MSG
Public Instance Methods
autocorrect(node)
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# File lib/rubocop/cop/lint/multiple_compare.rb, line 37 def autocorrect(node) center = multiple_compare?(node) new_center = "#{center.source} && #{center.source}" lambda do |corrector| corrector.replace(center.source_range, new_center) end end
on_send(node)
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# File lib/rubocop/cop/lint/multiple_compare.rb, line 31 def on_send(node) return unless multiple_compare?(node) add_offense(node) end