class RubbyCop::Cop::Layout::SpaceBeforeFirstArg

Checks that exactly one space is used between a method name and the first argument for method calls without parentheses.

Alternatively, extra spaces can be added to align the argument with something on a preceding or following line, if the AllowForAlignment config parameter is true.

@example

@bad
something  x
something   y, z
something'hello'

@good
something x
something y, z
something 'hello'

Constants

MSG

Public Instance Methods

autocorrect(range) click to toggle source
# File lib/rubbycop/cop/layout/space_before_first_arg.rb, line 42
def autocorrect(range)
  ->(corrector) { corrector.replace(range, ' ') }
end
on_send(node) click to toggle source
# File lib/rubbycop/cop/layout/space_before_first_arg.rb, line 30
def on_send(node)
  return unless regular_method_call_with_arguments?(node)
  return unless expect_params_after_method_name?(node)

  first_arg = node.first_argument.source_range
  first_arg_with_space = range_with_surrounding_space(first_arg, :left)
  space = range_between(first_arg_with_space.begin_pos,
                        first_arg.begin_pos)

  add_offense(space, space) if space.length != 1
end

Private Instance Methods

expect_params_after_method_name?(node) click to toggle source
# File lib/rubbycop/cop/layout/space_before_first_arg.rb, line 52
def expect_params_after_method_name?(node)
  return false if node.parenthesized?

  first_arg = node.first_argument

  same_line?(first_arg, node) &&
    !(allow_for_alignment? &&
      aligned_with_something?(first_arg.source_range))
end
regular_method_call_with_arguments?(node) click to toggle source
# File lib/rubbycop/cop/layout/space_before_first_arg.rb, line 48
def regular_method_call_with_arguments?(node)
  node.arguments? && !node.operator_method? && !node.setter_method?
end