go-json/decode_wrapped_string.go

47 lines
1.1 KiB
Go

package json
import (
"unsafe"
)
type wrappedStringDecoder struct {
dec decoder
stringDecoder *stringDecoder
structName string
fieldName string
}
func newWrappedStringDecoder(dec decoder, structName, fieldName string) *wrappedStringDecoder {
return &wrappedStringDecoder{
dec: dec,
stringDecoder: newStringDecoder(structName, fieldName),
structName: structName,
fieldName: fieldName,
}
}
func (d *wrappedStringDecoder) decodeStream(s *stream, p unsafe.Pointer) error {
bytes, err := d.stringDecoder.decodeStreamByte(s)
if err != nil {
return err
}
b := make([]byte, len(bytes)+1)
copy(b, bytes)
if _, err := d.dec.decode((*sliceHeader)(unsafe.Pointer(&b)), 0, p); err != nil {
return err
}
return nil
}
func (d *wrappedStringDecoder) decode(buf *sliceHeader, cursor int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.stringDecoder.decodeByte(buf, cursor)
if err != nil {
return 0, err
}
bytes = append(bytes, nul)
if _, err := d.dec.decode((*sliceHeader)(unsafe.Pointer(&bytes)), 0, p); err != nil {
return 0, err
}
return c, nil
}