You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
140 lines
2.7 KiB
140 lines
2.7 KiB
// ------------------------------------------------------------------------
|
|
// 🚀 Project active3
|
|
// 🔗 Active Thing (activething.com) git.activething.com/go
|
|
//
|
|
// File name builder_state.go
|
|
// ✍️ Created by DEV
|
|
// 📅 Modified 04/05/2024
|
|
//
|
|
// 🔒 Copyright 2024 activething.com
|
|
//
|
|
// 📜 LICENSE --------------------------------------------------------------
|
|
// 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 pstate
|
|
|
|
import (
|
|
"apack"
|
|
"bfrs"
|
|
"crps"
|
|
)
|
|
|
|
type (
|
|
|
|
State struct {
|
|
B *bfrs.ABuffer
|
|
|
|
key any
|
|
field string
|
|
|
|
Level int
|
|
levels []*StateLevel
|
|
Current *StateLevel
|
|
|
|
Pos int
|
|
Err error
|
|
|
|
cyclesCheck map[any]struct{}
|
|
|
|
Encrypter crps.Encrypter
|
|
}
|
|
|
|
StateFnc func(state *State)
|
|
|
|
)
|
|
|
|
|
|
|
|
func AcquireState (options ...StateFnc) *State {
|
|
return (g.statePool.Get()).init(options) }
|
|
|
|
func ReleaseState (state *State) {
|
|
g.statePool.Put(state.reset()) }
|
|
|
|
|
|
|
|
func NewState(options ...StateFnc) *State {
|
|
return (&State{
|
|
Level: -1,
|
|
B : bfrs.NewABuffer(),
|
|
}).init(options) }
|
|
|
|
|
|
|
|
func (s *State) init (options []StateFnc) *State {
|
|
for _,o := range options { o(s) }
|
|
s.Open(ModeValue)
|
|
return s
|
|
}
|
|
|
|
func (s *State) reset () *State {
|
|
s.B.Reset()
|
|
s.key = nil
|
|
s.field = ""
|
|
s.Level = -1
|
|
s.Pos = 0
|
|
s.Err = nil
|
|
s.cyclesCheck = nil
|
|
s.Encrypter = nil
|
|
s.levels = s.levels[:0]
|
|
s.Current= nil
|
|
return s
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (s *State) Open (mode Mode) {
|
|
s.Level++
|
|
s.levels = append(s.levels, (&StateLevel{}).Ini(mode, s.B.Len()))
|
|
s.Current = s.levels[s.Level]
|
|
}
|
|
|
|
func (s *State) Close(mode Mode) {
|
|
s.Level--
|
|
if s.Level < 0 {
|
|
s.SetError(apack.G.ErrStateInvalidLevel)
|
|
return
|
|
}
|
|
//s.levels = s.levels[:s.Level+1]
|
|
if s.levels[s.Level+1].Mode != mode {
|
|
s.SetError(apack.G.ErrInvalidNode)
|
|
return
|
|
}
|
|
s.Current = s.levels[s.Level]
|
|
}
|
|
|
|
|
|
|
|
func (s *State) CheckCycle(ptr any) (func(),bool) {
|
|
if _,hs := s.cyclesCheck[ptr]; hs {
|
|
s.SetError(apack.G.ErrCircularReference)
|
|
return nil,false
|
|
}
|
|
s.cyclesCheck[ptr]=struct{}{}
|
|
return func(){ delete(s.cyclesCheck,ptr) }, true
|
|
}
|
|
|
|
|
|
func (s *State) SetError (err error) bool {
|
|
if err == nil {
|
|
return false
|
|
}
|
|
s.reset()
|
|
s.Err = err
|
|
return true
|
|
}
|
|
|