class RuboCop::Cop::Style::EmptyElse

end
else
statement
if condition
# bad
end
nil
else
statement
if condition
# bad
# both - warn on empty else and else with nil in it
@example
end
else
statement
if condition
# good
end
nil
else
statement
if condition
# bad
# nil - warn on else with nil in it
@example
end
nil
else
statement
if condition
# good
end
else
statement
if condition
# bad
# empty - warn only on empty else
@example
end
statement
if condition
# good for all styles
end
statement
else
statement
if condition
# good for all styles
@example
SupportedStyles:
explicit ‘nil` depending on the EnforcedStyle.
Checks for empty else-clauses, possibly including comments and/or an

def autocorrect(node) 

def autocorrect(node)
  return false if autocorrect_forbidden?(node.type.to_s)
  lambda do |corrector|
    end_pos = base_if_node(node).loc.end.begin_pos
    corrector.remove(range_between(node.loc.else.begin_pos, end_pos))
  end
end

def autocorrect_forbidden?(type) 

def autocorrect_forbidden?(type)
  [type, 'both'].include?(missing_else_style)
end

def base_if_node(node) 

def base_if_node(node)
  node.each_ancestor(:if).find { |parent| parent.loc.end } || node
end

def check(node) 

def check(node)
  empty_check(node) if empty_style?
  nil_check(node) if nil_style?
end

def empty_check(node) 

def empty_check(node)
  return unless node.else? && !node.else_branch
  add_offense(node, :else, MSG)
end

def empty_style? 

def empty_style?
  style == :empty || style == :both
end

def missing_else_style 

def missing_else_style
  missing_config = config.for_cop('Style/MissingElse')
  missing_config['Enabled'] ? missing_config['EnforcedStyle'] : nil
end

def nil_check(node) 

def nil_check(node)
  return unless node.else_branch && node.else_branch.nil_type?
  add_offense(node, :else, MSG)
end

def nil_style? 

def nil_style?
  style == :nil || style == :both
end

def on_case(node) 

def on_case(node)
  check(node)
end

def on_normal_if_unless(node) 

def on_normal_if_unless(node)
  check(node)
end