Method Encode

pgtype/multirange.go:141–184

(value any, buf []byte)

}

func (p *encodePlanMultirangeCodecBinary) Encode(value any, buf []byte) (newBuf []byte, err error) {
	multirange := value.(MultirangeGetter)

	if multirange.IsNull() {
		return nil, nil
	}

	elementCount := multirange.Len()

	buf = pgio.AppendInt32(buf, int32(elementCount))

	var encodePlan EncodePlan
	var lastElemType reflect.Type
	for i := range elementCount {
		sp := len(buf)
		buf = pgio.AppendInt32(buf, -1)

		elem := multirange.Index(i)
		var elemBuf []byte
		if elem != nil {
			elemType := reflect.TypeOf(elem)
			if lastElemType != elemType {
				lastElemType = elemType
				encodePlan = p.m.PlanEncode(p.ac.ElementType.OID, BinaryFormatCode, elem)
				if encodePlan == nil {
					return nil, fmt.Errorf("unable to encode %v", multirange.Index(i))
				}
			}
			elemBuf, err = encodePlan.Encode(elem, buf)
			if err != nil {
				return nil, err
			}
		}

		if elemBuf == nil {
			return nil, fmt.Errorf("multirange cannot contain NULL element")
		} else {
			buf = elemBuf
			pgio.SetInt32(buf[sp:], int32(len(buf[sp:])-4))
		}
	}

	return buf, nil
}

func (c *MultirangeCodec) PlanScan(m *Map, oid uint32, format int16, target any) ScanPlan {
	multirangeScanner, ok := target.(MultirangeSetter)