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unmarshal_session.go
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// Copyright 2019 Yunion
//
// 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 jsonutils
import (
"reflect"
)
type sJsonNodeValues struct {
nodeValue reflect.Value
nodeValueSet bool
targetValues []reflect.Value
}
type sJsonUnmarshalSession struct {
objectMap map[int]*sJsonNodeValues
}
func newJsonUnmarshalSession() *sJsonUnmarshalSession {
return &sJsonUnmarshalSession{
objectMap: make(map[int]*sJsonNodeValues),
}
}
func (s *sJsonUnmarshalSession) saveNodeValue(nodeId int, val reflect.Value) {
if nv, ok := s.objectMap[nodeId]; !ok {
s.objectMap[nodeId] = &sJsonNodeValues{
nodeValue: val,
nodeValueSet: true,
}
} else {
nv.nodeValue = val
nv.nodeValueSet = true
for i := range nv.targetValues {
nv.targetValues[i].Set(val)
}
nv.targetValues = nil
}
}
func (s *sJsonUnmarshalSession) setPointerValue(nodeId int, val reflect.Value) error {
if nv, ok := s.objectMap[nodeId]; ok && nv.nodeValueSet {
val.Set(nv.nodeValue)
} else if ok && !nv.nodeValueSet {
nv.targetValues = append(nv.targetValues, val)
} else {
s.objectMap[nodeId] = &sJsonNodeValues{
nodeValueSet: false,
targetValues: []reflect.Value{
val,
},
}
}
return nil
}