func()

in model/modelpb/metricset_vtproto.pb.go [940:1120]

• 180 lines of code
• 51 McCabe index (conditional complexity)

func (m *Histogram) UnmarshalVT(dAtA []byte) error {
	l := len(dAtA)
	iNdEx := 0
	for iNdEx < l {
		preIndex := iNdEx
		var wire uint64
		for shift := uint(0); ; shift += 7 {
			if shift >= 64 {
				return protohelpers.ErrIntOverflow
			}
			if iNdEx >= l {
				return io.ErrUnexpectedEOF
			}
			b := dAtA[iNdEx]
			iNdEx++
			wire |= uint64(b&0x7F) << shift
			if b < 0x80 {
				break
			}
		}
		fieldNum := int32(wire >> 3)
		wireType := int(wire & 0x7)
		if wireType == 4 {
			return fmt.Errorf("proto: Histogram: wiretype end group for non-group")
		}
		if fieldNum <= 0 {
			return fmt.Errorf("proto: Histogram: illegal tag %d (wire type %d)", fieldNum, wire)
		}
		switch fieldNum {
		case 1:
			if wireType == 1 {
				var v uint64
				if (iNdEx + 8) > l {
					return io.ErrUnexpectedEOF
				}
				v = uint64(binary.LittleEndian.Uint64(dAtA[iNdEx:]))
				iNdEx += 8
				v2 := float64(math.Float64frombits(v))
				m.Values = append(m.Values, v2)
			} else if wireType == 2 {
				var packedLen int
				for shift := uint(0); ; shift += 7 {
					if shift >= 64 {
						return protohelpers.ErrIntOverflow
					}
					if iNdEx >= l {
						return io.ErrUnexpectedEOF
					}
					b := dAtA[iNdEx]
					iNdEx++
					packedLen |= int(b&0x7F) << shift
					if b < 0x80 {
						break
					}
				}
				if packedLen < 0 {
					return protohelpers.ErrInvalidLength
				}
				postIndex := iNdEx + packedLen
				if postIndex < 0 {
					return protohelpers.ErrInvalidLength
				}
				if postIndex > l {
					return io.ErrUnexpectedEOF
				}
				var elementCount int
				elementCount = packedLen / 8
				if elementCount != 0 && len(m.Values) == 0 {
					m.Values = make([]float64, 0, elementCount)
				}
				for iNdEx < postIndex {
					var v uint64
					if (iNdEx + 8) > l {
						return io.ErrUnexpectedEOF
					}
					v = uint64(binary.LittleEndian.Uint64(dAtA[iNdEx:]))
					iNdEx += 8
					v2 := float64(math.Float64frombits(v))
					m.Values = append(m.Values, v2)
				}
			} else {
				return fmt.Errorf("proto: wrong wireType = %d for field Values", wireType)
			}
		case 2:
			if wireType == 0 {
				var v uint64
				for shift := uint(0); ; shift += 7 {
					if shift >= 64 {
						return protohelpers.ErrIntOverflow
					}
					if iNdEx >= l {
						return io.ErrUnexpectedEOF
					}
					b := dAtA[iNdEx]
					iNdEx++
					v |= uint64(b&0x7F) << shift
					if b < 0x80 {
						break
					}
				}
				m.Counts = append(m.Counts, v)
			} else if wireType == 2 {
				var packedLen int
				for shift := uint(0); ; shift += 7 {
					if shift >= 64 {
						return protohelpers.ErrIntOverflow
					}
					if iNdEx >= l {
						return io.ErrUnexpectedEOF
					}
					b := dAtA[iNdEx]
					iNdEx++
					packedLen |= int(b&0x7F) << shift
					if b < 0x80 {
						break
					}
				}
				if packedLen < 0 {
					return protohelpers.ErrInvalidLength
				}
				postIndex := iNdEx + packedLen
				if postIndex < 0 {
					return protohelpers.ErrInvalidLength
				}
				if postIndex > l {
					return io.ErrUnexpectedEOF
				}
				var elementCount int
				var count int
				for _, integer := range dAtA[iNdEx:postIndex] {
					if integer < 128 {
						count++
					}
				}
				elementCount = count
				if elementCount != 0 && len(m.Counts) == 0 {
					m.Counts = make([]uint64, 0, elementCount)
				}
				for iNdEx < postIndex {
					var v uint64
					for shift := uint(0); ; shift += 7 {
						if shift >= 64 {
							return protohelpers.ErrIntOverflow
						}
						if iNdEx >= l {
							return io.ErrUnexpectedEOF
						}
						b := dAtA[iNdEx]
						iNdEx++
						v |= uint64(b&0x7F) << shift
						if b < 0x80 {
							break
						}
					}
					m.Counts = append(m.Counts, v)
				}
			} else {
				return fmt.Errorf("proto: wrong wireType = %d for field Counts", wireType)
			}
		default:
			iNdEx = preIndex
			skippy, err := protohelpers.Skip(dAtA[iNdEx:])
			if err != nil {
				return err
			}
			if (skippy < 0) || (iNdEx+skippy) < 0 {
				return protohelpers.ErrInvalidLength
			}
			if (iNdEx + skippy) > l {
				return io.ErrUnexpectedEOF
			}
			m.unknownFields = append(m.unknownFields, dAtA[iNdEx:iNdEx+skippy]...)
			iNdEx += skippy
		}
	}

	if iNdEx > l {
		return io.ErrUnexpectedEOF
	}
	return nil
}