Function unmarshalHistogramBucket

pkg/querier/tripperware/query.go:640–678

Adapted from https://github.com/prometheus/client_golang/blob/4b158abea9470f75b6f07460cdc2189b91914562/api/prometheus/v1/api.go#L252.

(iter *jsoniter.Iterator)

// Adapted from https://github.com/prometheus/client_golang/blob/4b158abea9470f75b6f07460cdc2189b91914562/api/prometheus/v1/api.go#L252.
func unmarshalHistogramBucket(iter *jsoniter.Iterator) (*HistogramBucket, error) {
	b := HistogramBucket{}
	if !iter.ReadArray() {
		return nil, errors.New("HistogramBucket must be [boundaries, lower, upper, count]")
	}
	boundaries, err := iter.ReadNumber().Int64()
	if err != nil {
		return nil, err
	}
	b.Boundaries = int32(boundaries)
	if !iter.ReadArray() {
		return nil, errors.New("HistogramBucket must be [boundaries, lower, upper, count]")
	}
	f, err := strconv.ParseFloat(iter.ReadString(), 64)
	if err != nil {
		return nil, err
	}
	b.Lower = f
	if !iter.ReadArray() {
		return nil, errors.New("HistogramBucket must be [boundaries, lower, upper, count]")
	}
	f, err = strconv.ParseFloat(iter.ReadString(), 64)
	if err != nil {
		return nil, err
	}
	b.Upper = f
	if !iter.ReadArray() {
		return nil, errors.New("HistogramBucket must be [boundaries, lower, upper, count]")
	}
	f, err = strconv.ParseFloat(iter.ReadString(), 64)
	if err != nil {
		return nil, err
	}
	b.Count = f
	if iter.ReadArray() {
		return nil, errors.New("HistogramBucket has too many values, must be [boundaries, lower, upper, count]")
	}
	return &b, nil
}

// Adapted from https://github.com/prometheus/client_golang/blob/4b158abea9470f75b6f07460cdc2189b91914562/api/prometheus/v1/api.go#L137.
func MarshalSampleHistogramPairJSON(ptr unsafe.Pointer, stream *jsoniter.Stream) {