// ------------------------------------------------------------------------
//   Project atila
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  builder_node.go
//   Created by DEV
//   Modified   16/01/2024
//
//   Copyright 2024 activething.com
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------

package packs

import (
	"activething.com/go/gogo/core/slices"
)

type (

	StateNode 	struct {
		Parent 	*StateNode
		Start  	int
		Count  	int
		Level  	int
		Kind 	NodeKind
		keys 	slices.String
	}
)

func (n *StateNode) Init(parent *StateNode, kind NodeKind, start int) *StateNode {
	n.Parent = parent
	if parent != nil {
		n.Level = parent.Level + 1
	} else {
		n.Level = 0
	}
	n.Level = 0
	n.Count = 0
	n.Start = start
	n.Kind = kind
	return n
}

func (n *StateNode) Reset() *StateNode {
	n.Parent = nil
	n.keys = n.keys[:0]
	return n
}