class RuboCop::Cop::Style::ClassCheck
Enforces consistent use of ‘Object#is_a?` or `Object#kind_of?`.
@example EnforcedStyle: is_a? (default)
# bad var.kind_of?(Date) var.kind_of?(Integer) # good var.is_a?(Date) var.is_a?(Integer)
@example EnforcedStyle: kind_of?
# bad var.is_a?(Time) var.is_a?(String) # good var.kind_of?(Time) var.kind_of?(String)
Constants
- MSG
- RESTRICT_ON_SEND
Public Instance Methods
message(node)
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# File lib/rubocop/cop/style/class_check.rb, line 45 def message(node) if node.method?(:is_a?) format(MSG, prefer: 'kind_of?', current: 'is_a?') else format(MSG, prefer: 'is_a?', current: 'kind_of?') end end
on_send(node)
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# File lib/rubocop/cop/style/class_check.rb, line 33 def on_send(node) return if style == node.method_name message = message(node) add_offense(node.loc.selector, message: message) do |corrector| replacement = node.method?(:is_a?) ? 'kind_of?' : 'is_a?' corrector.replace(node.loc.selector, replacement) end end
Also aliased as: on_csend