func()

in internal/encoding/types.go [698:750]

• 46 lines of code
• 11 McCabe index (conditional complexity)

func (a *arrayInt32) Unmarshal(r *buffer.Buffer) error {
	length, err := readArrayHeader(r)
	if err != nil {
		return err
	}

	aa := (*a)[:0]

	type_, err := readType(r)
	if err != nil {
		return err
	}
	switch type_ {
	case TypeCodeSmallint:
		buf, ok := r.Next(length)
		if !ok {
			return errors.New("invalid length")
		}

		if int64(cap(aa)) < length {
			aa = make([]int32, length)
		} else {
			aa = aa[:length]
		}

		for i, n := range buf {
			aa[i] = int32(int8(n))
		}
	case TypeCodeInt:
		const typeSize = 4
		buf, ok := r.Next(length * typeSize)
		if !ok {
			return fmt.Errorf("invalid length %d", length)
		}

		if int64(cap(aa)) < length {
			aa = make([]int32, length)
		} else {
			aa = aa[:length]
		}

		var bufIdx int
		for i := range aa {
			aa[i] = int32(binary.BigEndian.Uint32(buf[bufIdx:]))
			bufIdx += 4
		}
	default:
		return fmt.Errorf("invalid type for []int32 %02x", type_)
	}

	*a = aa
	return nil
}