class RuboCop::Cop::Style::CaseEquality


self.class === something
# good
@example AllowOnSelfClass: true
self.class === something
# bad
@example AllowOnSelfClass: false (default)
Array === something
# good
@example AllowOnConstant: true
Array === something
# bad
@example AllowOnConstant: false (default)
/something/.match?(some_string)
(1..100).include?(7)
something.is_a?(Array)
# good
/something/ === some_string
(1..100) === 7
# bad
@example
the case equality operator is ‘self.class`. Note intermediate variables are not accepted.
If `AllowOnSelfClass` option is enabled, the cop will ignore violations when the receiver of

def begin_replacement(lhs, rhs) 

def begin_replacement(lhs, rhs)
  return unless lhs.children.first&.range_type?
  "#{lhs.source}.include?(#{rhs.source})"
end

def const_replacement(lhs, rhs) 

def const_replacement(lhs, rhs)
  "#{rhs.source}.is_a?(#{lhs.source})"
end

def offending_receiver?(node) 

def offending_receiver?(node)
  return false if node&.const_type? && cop_config.fetch('AllowOnConstant', false)
  return false if self_class?(node) && cop_config.fetch('AllowOnSelfClass', false)
  true
end

def on_send(node) 

def on_send(node)
  case_equality?(node) do |lhs, rhs|
    return if lhs.const_type? && !lhs.module_name?
    add_offense(node.loc.selector) do |corrector|
      replacement = replacement(lhs, rhs)
      corrector.replace(node, replacement) if replacement
    end
  end
end

def replacement(lhs, rhs) 

def replacement(lhs, rhs)
  case lhs.type
  when :regexp
    # The automatic correction from `a === b` to `a.match?(b)` needs to
    # consider `Regexp.last_match?`, `$~`, `$1`, and etc.
    # This correction is expected to be supported by `Performance/Regexp` cop.
    # See: https://github.com/rubocop/rubocop-performance/issues/152
    #
    # So here is noop.
  when :begin
    begin_replacement(lhs, rhs)
  when :const
    const_replacement(lhs, rhs)
  when :send
    send_replacement(lhs, rhs)
  end
end

def send_replacement(lhs, rhs) 

def send_replacement(lhs, rhs)
  return unless self_class?(lhs)
  "#{rhs.source}.is_a?(#{lhs.source})"
end