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(node)

def autocorrect(node)
  return false if autocorrect_forbidden?(node.type.to_s)
  return false if comment_in_else?(node)
  lambda do |corrector|
    end_pos = base_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_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?(node)

def comment_in_else?(node)
  range = else_line_range(node.loc)
  processed_source.find_comment { |c| range.include?(c.loc.line) }
end

def else_line_range(loc)

def else_line_range(loc)
  return 0..0 if loc.else.nil? || loc.end.nil?
  loc.else.first_line..loc.end.first_line
end

def empty_check(node)

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

Modules

Classes