mirror of https://github.com/goccy/go-json.git
133 lines
3.0 KiB
Go
133 lines
3.0 KiB
Go
package json
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
type boolDecoder struct{}
|
|
|
|
func newBoolDecoder() *boolDecoder {
|
|
return &boolDecoder{}
|
|
}
|
|
|
|
func trueBytes(s *stream) error {
|
|
if s.cursor+3 >= s.length {
|
|
if !s.read() {
|
|
return errInvalidCharacter(s.char(), "bool(true)", s.totalOffset())
|
|
}
|
|
}
|
|
s.cursor++
|
|
if s.char() != 'r' {
|
|
return errInvalidCharacter(s.char(), "bool(true)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
if s.char() != 'u' {
|
|
return errInvalidCharacter(s.char(), "bool(true)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
if s.char() != 'e' {
|
|
return errInvalidCharacter(s.char(), "bool(true)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
return nil
|
|
}
|
|
|
|
func falseBytes(s *stream) error {
|
|
if s.cursor+4 >= s.length {
|
|
if s.read() {
|
|
return errInvalidCharacter(s.char(), "bool(false)", s.totalOffset())
|
|
}
|
|
}
|
|
s.cursor++
|
|
if s.char() != 'a' {
|
|
return errInvalidCharacter(s.char(), "bool(false)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
if s.char() != 'l' {
|
|
return errInvalidCharacter(s.char(), "bool(false)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
if s.char() != 's' {
|
|
return errInvalidCharacter(s.char(), "bool(false)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
if s.char() != 'e' {
|
|
return errInvalidCharacter(s.char(), "bool(false)", s.totalOffset())
|
|
}
|
|
s.cursor++
|
|
return nil
|
|
}
|
|
|
|
func (d *boolDecoder) setDisallowUnknownFields(_ bool) {}
|
|
|
|
func (d *boolDecoder) decodeStream(s *stream, p uintptr) error {
|
|
s.skipWhiteSpace()
|
|
for {
|
|
switch s.char() {
|
|
case 't':
|
|
if err := trueBytes(s); err != nil {
|
|
return err
|
|
}
|
|
*(*bool)(unsafe.Pointer(p)) = true
|
|
return nil
|
|
case 'f':
|
|
if err := falseBytes(s); err != nil {
|
|
return err
|
|
}
|
|
*(*bool)(unsafe.Pointer(p)) = false
|
|
return nil
|
|
case nul:
|
|
if s.read() {
|
|
continue
|
|
}
|
|
goto ERROR
|
|
}
|
|
break
|
|
}
|
|
ERROR:
|
|
return errUnexpectedEndOfJSON("bool", s.totalOffset())
|
|
}
|
|
|
|
func (d *boolDecoder) decode(buf []byte, cursor int64, p uintptr) (int64, error) {
|
|
buflen := int64(len(buf))
|
|
cursor = skipWhiteSpace(buf, cursor)
|
|
switch buf[cursor] {
|
|
case 't':
|
|
if cursor+3 >= buflen {
|
|
return 0, errUnexpectedEndOfJSON("bool(true)", cursor)
|
|
}
|
|
if buf[cursor+1] != 'r' {
|
|
return 0, errInvalidCharacter(buf[cursor+1], "bool(true)", cursor)
|
|
}
|
|
if buf[cursor+2] != 'u' {
|
|
return 0, errInvalidCharacter(buf[cursor+2], "bool(true)", cursor)
|
|
}
|
|
if buf[cursor+3] != 'e' {
|
|
return 0, errInvalidCharacter(buf[cursor+3], "bool(true)", cursor)
|
|
}
|
|
cursor += 4
|
|
*(*bool)(unsafe.Pointer(p)) = true
|
|
return cursor, nil
|
|
case 'f':
|
|
if cursor+4 >= buflen {
|
|
return 0, errUnexpectedEndOfJSON("bool(false)", cursor)
|
|
}
|
|
if buf[cursor+1] != 'a' {
|
|
return 0, errInvalidCharacter(buf[cursor+1], "bool(false)", cursor)
|
|
}
|
|
if buf[cursor+2] != 'l' {
|
|
return 0, errInvalidCharacter(buf[cursor+2], "bool(false)", cursor)
|
|
}
|
|
if buf[cursor+3] != 's' {
|
|
return 0, errInvalidCharacter(buf[cursor+3], "bool(false)", cursor)
|
|
}
|
|
if buf[cursor+4] != 'e' {
|
|
return 0, errInvalidCharacter(buf[cursor+4], "bool(false)", cursor)
|
|
}
|
|
cursor += 5
|
|
*(*bool)(unsafe.Pointer(p)) = false
|
|
return cursor, nil
|
|
}
|
|
return 0, errUnexpectedEndOfJSON("bool", cursor)
|
|
}
|