class RuboCop::Cop::Style::MissingElse

end
# the content of ‘else` branch will be determined by Style/EmptyElse
else
statement
when condition
case var
# good
end
# the content of `else` branch will be determined by Style/EmptyElse
else
statement
if condition
# good
end
statement
when condition
case var
# bad
end
statement
if condition
# bad
# warn when an `if` or `case` expression is missing an `else` branch.
@example EnforcedStyle: both (default)
end
# the content of `else` branch will be determined by Style/EmptyElse
else
statement
if condition
# good
end
statement
if condition
# good
end
# the content of `else` branch will be determined by Style/EmptyElse
else
statement
when condition
case var
# good
end
statement
when condition
case var
# bad
# warn when a `case` expression is missing an `else` branch.
@example EnforcedStyle: case
end
# the content of `else` branch will be determined by Style/EmptyElse
else
statement
when condition
case var
# good
end
statement
when condition
case var
# good
end
# the content of `else` branch will be determined by Style/EmptyElse
else
statement
if condition
# good
end
statement
if condition
# bad
# warn when an `if` expression is missing an `else` branch.
@example EnforcedStyle: if
Supported styles are: if, case, both.
Checks for `if` expressions that do not have an `else` branch.

def case_style?

def case_style?
  style == :case
end

def check(node)

def check(node)
  return if node.else?
  if empty_else_cop_enabled?
    if empty_else_style == :empty
      add_offense(node)
    elsif empty_else_style == :nil
      add_offense(node)
    end
  end
  add_offense(node)
end

def empty_else_config

def empty_else_config
  config.for_cop('Style/EmptyElse')
end

def empty_else_cop_enabled?

def empty_else_cop_enabled?
  empty_else_config.fetch('Enabled')
end

def empty_else_style

def empty_else_style
  return unless empty_else_config.key?('EnforcedStyle')
  empty_else_config['EnforcedStyle'].to_sym
end

def if_style?

def if_style?
  style == :if
end

def message(node)

def message(node)
  template = case empty_else_style
             when :empty
               MSG_NIL
             when :nil
               MSG_EMPTY
             else
               MSG
             end
  format(template, type: node.type)
end

def on_case(node)

def on_case(node)
  return if if_style?
  check(node)
end

def on_normal_if_unless(node)

def on_normal_if_unless(node)
  return if case_style?
  return if unless_else_cop_enabled? && node.unless?
  check(node)
end

def unless_else_config

def unless_else_config
  config.for_cop('Style/UnlessElse')
end

def unless_else_cop_enabled?

def unless_else_cop_enabled?
  unless_else_config.fetch('Enabled')
end

Modules

Classes