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|
package decoder
import (
"fmt"
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
type wrappedStringDecoder struct {
typ *runtime.Type
dec Decoder
stringDecoder *stringDecoder
structName string
fieldName string
isPtrType bool
}
func newWrappedStringDecoder(typ *runtime.Type, dec Decoder, structName, fieldName string) *wrappedStringDecoder {
return &wrappedStringDecoder{
typ: typ,
dec: dec,
stringDecoder: newStringDecoder(structName, fieldName),
structName: structName,
fieldName: fieldName,
isPtrType: typ.Kind() == reflect.Ptr,
}
}
func (d *wrappedStringDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.stringDecoder.decodeStreamByte(s)
if err != nil {
return err
}
if bytes == nil {
if d.isPtrType {
*(*unsafe.Pointer)(p) = nil
}
return nil
}
b := make([]byte, len(bytes)+1)
copy(b, bytes)
if _, err := d.dec.Decode(&RuntimeContext{Buf: b}, 0, depth, p); err != nil {
return err
}
return nil
}
func (d *wrappedStringDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.stringDecoder.decodeByte(ctx.Buf, cursor)
if err != nil {
return 0, err
}
if bytes == nil {
if d.isPtrType {
*(*unsafe.Pointer)(p) = nil
}
return c, nil
}
bytes = append(bytes, nul)
oldBuf := ctx.Buf
ctx.Buf = bytes
if _, err := d.dec.Decode(ctx, 0, depth, p); err != nil {
return 0, err
}
ctx.Buf = oldBuf
return c, nil
}
func (d *wrappedStringDecoder) DecodePath(ctx *RuntimeContext, cursor, depth int64) ([][]byte, int64, error) {
return nil, 0, fmt.Errorf("json: wrapped string decoder does not support decode path")
}
|
