Method scanBytes

array.go:420–472

(src []byte, dv reflect.Value)

}

func (a GenericArray) scanBytes(src []byte, dv reflect.Value) error {
	dtype, assign, del := a.evaluateDestination(dv.Type().Elem())
	dims, elems, err := parseArray(src, []byte(del))
	if err != nil {
		return err
	}

	// TODO allow multidimensional

	if len(dims) > 1 {
		return fmt.Errorf("pq: scanning from multidimensional ARRAY%s is not implemented",
			strings.Replace(fmt.Sprint(dims), " ", "][", -1))
	}

	// Treat a zero-dimensional array like an array with a single dimension of zero.
	if len(dims) == 0 {
		dims = append(dims, 0)
	}

	for i, rt := 0, dv.Type(); i < len(dims); i, rt = i+1, rt.Elem() {
		switch rt.Kind() {
		case reflect.Slice:
		case reflect.Array:
			if rt.Len() != dims[i] {
				return fmt.Errorf("pq: cannot convert ARRAY%s to %s",
					strings.Replace(fmt.Sprint(dims), " ", "][", -1), dv.Type())
			}
		default:
			// TODO handle multidimensional
		}
	}

	values := reflect.MakeSlice(reflect.SliceOf(dtype), len(elems), len(elems))
	for i, e := range elems {
		err := assign(e, values.Index(i))
		if err != nil {
			return fmt.Errorf("pq: parsing array element index %d: %w", i, err)
		}
	}

	// TODO handle multidimensional

	switch dv.Kind() {
	case reflect.Slice:
		dv.Set(values.Slice(0, dims[0]))
	case reflect.Array:
		for i := 0; i < dims[0]; i++ {
			dv.Index(i).Set(values.Index(i))
		}
	}

	return nil
}

// Value implements the driver.Valuer interface.
func (a GenericArray) Value() (driver.Value, error) {