reflect_dynamic.go•1.46 kB
package jsoniter
import (
"github.com/modern-go/reflect2"
"reflect"
"unsafe"
)
type dynamicEncoder struct {
valType reflect2.Type
}
func (encoder *dynamicEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
obj := encoder.valType.UnsafeIndirect(ptr)
stream.WriteVal(obj)
}
func (encoder *dynamicEncoder) IsEmpty(ptr unsafe.Pointer) bool {
return encoder.valType.UnsafeIndirect(ptr) == nil
}
type efaceDecoder struct {
}
func (decoder *efaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
pObj := (*interface{})(ptr)
obj := *pObj
if obj == nil {
*pObj = iter.Read()
return
}
typ := reflect2.TypeOf(obj)
if typ.Kind() != reflect.Ptr {
*pObj = iter.Read()
return
}
ptrType := typ.(*reflect2.UnsafePtrType)
ptrElemType := ptrType.Elem()
if iter.WhatIsNext() == NilValue {
if ptrElemType.Kind() != reflect.Ptr {
iter.skipFourBytes('n', 'u', 'l', 'l')
*pObj = nil
return
}
}
if reflect2.IsNil(obj) {
obj := ptrElemType.New()
iter.ReadVal(obj)
*pObj = obj
return
}
iter.ReadVal(obj)
}
type ifaceDecoder struct {
valType *reflect2.UnsafeIFaceType
}
func (decoder *ifaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
if iter.ReadNil() {
decoder.valType.UnsafeSet(ptr, decoder.valType.UnsafeNew())
return
}
obj := decoder.valType.UnsafeIndirect(ptr)
if reflect2.IsNil(obj) {
iter.ReportError("decode non empty interface", "can not unmarshal into nil")
return
}
iter.ReadVal(obj)
}