class RuboCop::Cop::Style::RedundantConditional

x != y
# good
x == y ? false : true
# bad
x == y
# good
end
false
else
true
if x == y
# bad
x == y ? true : false
# bad
@example
This cop checks for redundant returning of true/false in conditionals.

def autocorrect(node) 

def autocorrect(node)
  lambda do |corrector|
    corrector.replace(node.loc.expression, replacement_condition(node))
  end
end

def configured_indentation_width 

def configured_indentation_width
  super || 2
end

def indented_else_node(expression, node) 

def indented_else_node(expression, node)
  "else\n#{indentation(node)}#{expression}"
end

def invert_expression?(node) 

def invert_expression?(node)
  (
    (node.if? || node.elsif? || node.ternary?) &&
    redundant_condition_inverted?(node)
  ) || (
    node.unless? &&
    redundant_condition?(node)
  )
end

def message(node) 

def message(node)
  replacement = replacement_condition(node)
  msg = node.elsif? ? "\n#{replacement}" : replacement
  format(MSG, msg: msg)
end

def offense?(node) 

def offense?(node)
  return if node.modifier_form?
  redundant_condition?(node) || redundant_condition_inverted?(node)
end

def on_if(node) 

def on_if(node)
  return unless offense?(node)
  add_offense(node)
end

def replacement_condition(node) 

def replacement_condition(node)
  condition = node.condition.source
  expression = invert_expression?(node) ? "!(#{condition})" : condition
  node.elsif? ? indented_else_node(expression, node) : expression
end