class RuboCop::AST::NodePattern::Parser

def _reduce_10(val, _values)
 emit_call :predicate, *val
end

def _reduce_11(val, _values)
 emit_call :node_type, *val
end

def _reduce_13(val, _values)
 emit_atom :symbol, *val
end

def _reduce_14(val, _values)
 emit_atom :number, *val
end

def _reduce_15(val, _values)
 emit_atom :string, *val
end

def _reduce_16(val, _values)
 emit_atom :const, *val
end

def _reduce_17(val, _values)
 emit_atom :named_parameter, *val
end

def _reduce_18(val, _values)
 emit_atom :positional_parameter, *val
end

def _reduce_19(val, _values)
 emit_atom :regexp, *val
end

def _reduce_2(val, _values)
 enforce_unary(val[0])
end

def _reduce_20(val, _values)
 emit_atom :wildcard, *val
end

def _reduce_21(val, _values)
 emit_atom :unify, *val
end

def _reduce_22(val, _values)
 emit_union(*val)
end

def _reduce_25(val, _values)
        main, repeat_t = val
        emit_unary_op(:repetition, repeat_t, main, repeat_t)

end

def _reduce_26(val, _values)
        opt_capture, bracket, node_pattern_list, opt_rest, close_bracket = val
        node_pattern_list << opt_rest if opt_rest
        main = emit_list :any_order, bracket, node_pattern_list, close_bracket
        emit_capture(opt_capture, main)

end

def _reduce_3(val, _values)
 emit_list :sequence, *val
end

def _reduce_33(val, _values)
 emit_capture(val[0], emit_atom(:rest, val[1]))
end

def _reduce_37(val, _values)
 val
end

def _reduce_38(val, _values)
 val
end

def _reduce_39(val, _values)
 val[0] << val[2]
end

def _reduce_4(val, _values)
 emit_list :intersection, *val
end

def _reduce_40(val, _values)
 val
end

def _reduce_41(val, _values)
 val[0] << val[1]
end

def _reduce_42(val, _values)
 val
end

def _reduce_43(val, _values)
 val[0] << val[1]
end

def _reduce_44(val, _values)
 [[]]
end

def _reduce_45(val, _values)
 val[0].last << val[1]; val[0]
end

def _reduce_46(val, _values)
 val[0] << []
end

def _reduce_5(val, _values)
 emit_unary_op :negation, *val
end

def _reduce_6(val, _values)
 emit_unary_op :ascend, *val
end

def _reduce_7(val, _values)
 emit_unary_op :descend, *val
end

def _reduce_8(val, _values)
 emit_capture(*val)
end

def _reduce_9(val, _values)
 emit_call :function_call, *val
end

def _reduce_none(val, _values)
  val[0]
end

def enforce_unary(node)
  return node if node.arity == 1
  detail = node.loc&.expression&.source || node.to_s
  raise NodePattern::Invalid, 'parse error, expected unary node pattern ' \
                              "but got expression matching multiple elements: #{detail}"
end

def initialize(builder = self.class::Builder.new)
  super()
  @builder = builder
end

def inspect
  "<##{self.class}>"
end

def on_error(token, val, _vstack)
  detail = token_to_str(token) || '?'
  raise NodePattern::Invalid, "parse error on value #{val.inspect} (#{detail})"
end

def parse(source)
  @lexer = self.class::Lexer.new(source)
  do_parse
rescue Lexer::Error => e
  raise NodePattern::Invalid, e.message
ensure
  @lexer = nil # Don't keep references
end