go-json/decode_array.go

50 lines
1.0 KiB
Go

package json
type arrayDecoder struct {
elemType *rtype
size uintptr
valueDecoder decoder
alen int
}
func newArrayDecoder(dec decoder, elemType *rtype, alen int) *arrayDecoder {
return &arrayDecoder{
valueDecoder: dec,
elemType: elemType,
size: elemType.Size(),
alen: alen,
}
}
func (d *arrayDecoder) decode(buf []byte, cursor int64, p uintptr) (int64, error) {
buflen := int64(len(buf))
for ; cursor < buflen; cursor++ {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
continue
case '[':
idx := 0
for {
cursor++
c, err := d.valueDecoder.decode(buf, cursor, p+uintptr(idx)*d.size)
if err != nil {
return 0, err
}
cursor = c
cursor = skipWhiteSpace(buf, cursor)
switch buf[cursor] {
case ']':
cursor++
return cursor, nil
case ',':
idx++
continue
default:
return 0, errInvalidCharacter(buf[cursor], "array", cursor)
}
}
}
}
return 0, errUnexpectedEndOfJSON("array", cursor)
}