class RuboCop::Cop::Style::EmptyElse

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

def autocorrect(corrector, node) 

def autocorrect(corrector, node)
  return false if autocorrect_forbidden?(node.type.to_s)
  return false if comment_in_else?(node.loc)
  end_pos = base_node(node).loc.end.begin_pos
  corrector.remove(range_between(node.loc.else.begin_pos, end_pos))
end

def autocorrect_forbidden?(type) 

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

def base_node(node) 

def base_node(node)
  return node if node.case_type?
  return node unless node.elsif?
  node.each_ancestor(:if, :case, :when).find(-> { node }) do |parent|
    parent.loc.end
  end
end

def check(node) 

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

def comment_in_else?(loc) 

def comment_in_else?(loc)
  return false if loc.else.nil? || loc.end.nil?
  processed_source.contains_comment?(loc.else.join(loc.end))
end

def empty_check(node) 

def empty_check(node)
  return unless node.else? && !node.else_branch
  add_offense(node.loc.else) do |corrector|
    autocorrect(corrector, node)
  end
end

def empty_style? 

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

def missing_else_style 

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

def nil_check(node) 

def nil_check(node)
  return unless node.else_branch&.nil_type?
  add_offense(node.loc.else) do |corrector|
    autocorrect(corrector, node)
  end
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