module RipperRubyParser::SexpHandlers::Methods

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 66
def process_alias exp
  _, left, right = exp.shift 3

  s(:alias,
    make_method_name_literal(left),
    make_method_name_literal(right))
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 4
def process_def exp
  _, ident, params, body = exp.shift 4
  ident, pos = extract_node_symbol_with_position ident
  params = convert_special_args(process(params))
  with_position(pos,
                s(:defn, ident, params, *method_body(body)))
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 12
def process_defs exp
  _, receiver, _, method, params, body = exp.shift 6
  params = convert_special_args(process(params))

  body = in_method do
    process(body)
  end

  if body.length == 1 && body.first.sexp_type == :block
    body = body.first
    body.shift
  end

  s(:defs,
    process(receiver),
    extract_node_symbol(method),
    params, *body)
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 31
def process_return exp
  _, arglist = exp.shift 2
  s(:return, handle_return_argument_list(arglist))
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 36
def process_return0 exp
  _ = exp.shift
  s(:return)
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 52
def process_undef exp
  _, args = exp.shift 2

  args.map! do |sub_exp|
    s(:undef, make_method_name_literal(sub_exp))
  end

  if args.size == 1
    args[0]
  else
    s(:block, *args)
  end
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 41
def process_yield exp
  _, arglist = exp.shift 2
  arglist = process arglist
  s(:yield, *arglist[1..-1])
end

# File lib/ripper_ruby_parser/sexp_handlers/methods.rb, line 47
def process_yield0 exp
  _ = exp.shift
  s(:yield)
end