class RuboCop::Cop::Style::OneLineConditional

end
baz
else
bar
if foo
# good
if foo then bar end
# good
bar if foo
# good
foo ? bar : baz
# good
unless foo then baz else bar end
# bad
if foo then bar else baz end
# bad
@example
autocorrect will first try converting them to ternary operators.
multi-line constructs. When AlwaysCorrectToMultiline is false (default case) the
AlwaysCorrectToMultiline config option can be set to true to auto-convert all offenses to
Checks for uses of if/then/else/end constructs on a single line.

def always_multiline? 

def always_multiline?
  @config.for_cop('Style/OneLineConditional')['AlwaysCorrectToMultiline']
end

def autocorrect(corrector, node) 

def autocorrect(corrector, node)
  if always_multiline? || cannot_replace_to_ternary?(node)
    IfThenCorrector.new(node, indentation: configured_indentation_width).call(corrector)
  else
    corrector.replace(node, ternary_correction(node))
  end
end

def cannot_replace_to_ternary?(node) 

def cannot_replace_to_ternary?(node)
  node.elsif_conditional?
end

def expr_replacement(node) 

def expr_replacement(node)
  return 'nil' if node.nil?
  requires_parentheses?(node) ? "(#{node.source})" : node.source
end

def keyword_with_changed_precedence?(node) 

def keyword_with_changed_precedence?(node)
  return false unless node.keyword?
  return true if node.respond_to?(:prefix_not?) && node.prefix_not?
  node.respond_to?(:arguments?) && node.arguments? && !node.parenthesized_call?
end

def message(node) 

def message(node)
  format(MSG, keyword: node.keyword)
end

def method_call_with_changed_precedence?(node) 

def method_call_with_changed_precedence?(node)
  return false unless node.send_type? && node.arguments?
  return false if node.parenthesized_call?
  !node.operator_method?
end

def on_normal_if_unless(node) 

def on_normal_if_unless(node)
  return unless node.single_line?
  return unless node.else_branch
  return if node.elsif?
  message = message(node)
  add_offense(node, message: message) do |corrector|
    autocorrect(corrector, node)
  end
end

def requires_parentheses?(node) 

def requires_parentheses?(node)
  return true if %i[and or if].include?(node.type)
  return true if node.assignment?
  return true if method_call_with_changed_precedence?(node)
  keyword_with_changed_precedence?(node)
end

def ternary_correction(node) 

def ternary_correction(node)
  replaced_node = ternary_replacement(node)
  return replaced_node unless node.parent
  return "(#{replaced_node})" if node.parent.operator_keyword?
  return "(#{replaced_node})" if node.parent.send_type? && node.parent.operator_method?
  replaced_node
end

def ternary_replacement(node) 

def ternary_replacement(node)
  condition, if_branch, else_branch = *node
  "#{expr_replacement(condition)} ? " \
    "#{expr_replacement(if_branch)} : " \
    "#{expr_replacement(else_branch)}"
end