3 // Copyright 2022 The Go Authors. All rights reserved.
4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file.
9 type value[V comparable] struct {
14 type node[V comparable] struct {
16 children map[string]*node[V]
19 type index[V comparable] struct {
23 type array[V comparable] struct {
30 type Column struct{ column int }