class RuboCop::Cop::Lint::EmptyInPattern

Checks for the presence of ‘in` pattern branches without a body.

@example

# bad
case condition
in [a]
  do_something
in [a, b]
end

# good
case condition
in [a]
  do_something
in [a, b]
  nil
end

@example AllowComments: true (default)

# good
case condition
in [a]
  do_something
in [a, b]
  # noop
end

@example AllowComments: false

# bad
case condition
in [a]
  do_something
in [a, b]
  # noop
end

Constants

MSG

Public Instance Methods

on_case_match(node) click to toggle source
# File lib/rubocop/cop/lint/empty_in_pattern.rb, line 53
def on_case_match(node)
  node.in_pattern_branches.each do |branch|
    next if branch.body
    next if cop_config['AllowComments'] && contains_comments?(branch)

    add_offense(branch)
  end
end