chore: make deps
This commit is contained in:
102
vendor/github.com/prometheus/common/expfmt/text_parse.go
generated
vendored
102
vendor/github.com/prometheus/common/expfmt/text_parse.go
generated
vendored
@ -48,8 +48,10 @@ func (e ParseError) Error() string {
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return fmt.Sprintf("text format parsing error in line %d: %s", e.Line, e.Msg)
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}
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// TextParser is used to parse the simple and flat text-based exchange format. Its
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// zero value is ready to use.
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// TextParser is used to parse the simple and flat text-based exchange format.
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//
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// TextParser instances must be created with NewTextParser, the zero value of
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// TextParser is invalid.
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type TextParser struct {
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metricFamiliesByName map[string]*dto.MetricFamily
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buf *bufio.Reader // Where the parsed input is read through.
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@ -129,9 +131,44 @@ func (p *TextParser) TextToMetricFamilies(in io.Reader) (map[string]*dto.MetricF
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if p.err != nil && errors.Is(p.err, io.EOF) {
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p.parseError("unexpected end of input stream")
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}
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for _, histogramMetric := range p.histograms {
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normalizeHistogram(histogramMetric.GetHistogram())
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}
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return p.metricFamiliesByName, p.err
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}
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// normalizeHistogram makes sure that all the buckets and the count in each
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// histogram is either completely float or completely integer.
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func normalizeHistogram(histogram *dto.Histogram) {
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if histogram == nil {
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return
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}
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anyFloats := false
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if histogram.GetSampleCountFloat() != 0 {
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anyFloats = true
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} else {
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for _, b := range histogram.GetBucket() {
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if b.GetCumulativeCountFloat() != 0 {
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anyFloats = true
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break
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}
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}
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}
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if !anyFloats {
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return
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}
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if histogram.GetSampleCountFloat() == 0 {
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histogram.SampleCountFloat = proto.Float64(float64(histogram.GetSampleCount()))
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histogram.SampleCount = nil
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}
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for _, b := range histogram.GetBucket() {
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if b.GetCumulativeCountFloat() == 0 {
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b.CumulativeCountFloat = proto.Float64(float64(b.GetCumulativeCount()))
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b.CumulativeCount = nil
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}
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}
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}
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func (p *TextParser) reset(in io.Reader) {
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p.metricFamiliesByName = map[string]*dto.MetricFamily{}
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p.currentLabelPairs = nil
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@ -281,7 +318,9 @@ func (p *TextParser) readingLabels() stateFn {
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// Summaries/histograms are special. We have to reset the
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// currentLabels map, currentQuantile and currentBucket before starting to
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// read labels.
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if p.currentMF.GetType() == dto.MetricType_SUMMARY || p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
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if p.currentMF.GetType() == dto.MetricType_SUMMARY ||
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p.currentMF.GetType() == dto.MetricType_HISTOGRAM ||
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p.currentMF.GetType() == dto.MetricType_GAUGE_HISTOGRAM {
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p.currentLabels = map[string]string{}
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p.currentLabels[string(model.MetricNameLabel)] = p.currentMF.GetName()
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p.currentQuantile = math.NaN()
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@ -374,7 +413,9 @@ func (p *TextParser) startLabelName() stateFn {
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// Special summary/histogram treatment. Don't add 'quantile' and 'le'
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// labels to 'real' labels.
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if (p.currentMF.GetType() != dto.MetricType_SUMMARY || p.currentLabelPair.GetName() != model.QuantileLabel) &&
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(p.currentMF.GetType() != dto.MetricType_HISTOGRAM || p.currentLabelPair.GetName() != model.BucketLabel) {
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((p.currentMF.GetType() != dto.MetricType_HISTOGRAM &&
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p.currentMF.GetType() != dto.MetricType_GAUGE_HISTOGRAM) ||
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p.currentLabelPair.GetName() != model.BucketLabel) {
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p.currentLabelPairs = append(p.currentLabelPairs, p.currentLabelPair)
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}
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// Check for duplicate label names.
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@ -425,7 +466,7 @@ func (p *TextParser) startLabelValue() stateFn {
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}
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}
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// Similar special treatment of histograms.
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if p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
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if p.currentMF.GetType() == dto.MetricType_HISTOGRAM || p.currentMF.GetType() == dto.MetricType_GAUGE_HISTOGRAM {
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if p.currentLabelPair.GetName() == model.BucketLabel {
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if p.currentBucket, p.err = parseFloat(p.currentLabelPair.GetValue()); p.err != nil {
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// Create a more helpful error message.
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@ -476,7 +517,7 @@ func (p *TextParser) readingValue() stateFn {
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p.summaries[signature] = p.currentMetric
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p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
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}
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case dto.MetricType_HISTOGRAM:
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case dto.MetricType_HISTOGRAM, dto.MetricType_GAUGE_HISTOGRAM:
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signature := model.LabelsToSignature(p.currentLabels)
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if histogram := p.histograms[signature]; histogram != nil {
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p.currentMetric = histogram
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@ -522,24 +563,38 @@ func (p *TextParser) readingValue() stateFn {
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},
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)
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}
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case dto.MetricType_HISTOGRAM:
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case dto.MetricType_HISTOGRAM, dto.MetricType_GAUGE_HISTOGRAM:
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// *sigh*
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if p.currentMetric.Histogram == nil {
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p.currentMetric.Histogram = &dto.Histogram{}
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}
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switch {
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case p.currentIsHistogramCount:
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p.currentMetric.Histogram.SampleCount = proto.Uint64(uint64(value))
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if uintValue := uint64(value); value == float64(uintValue) {
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p.currentMetric.Histogram.SampleCount = proto.Uint64(uintValue)
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} else {
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if value < 0 {
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p.parseError(fmt.Sprintf("negative count for histogram %q", p.currentMF.GetName()))
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return nil
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}
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p.currentMetric.Histogram.SampleCountFloat = proto.Float64(value)
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}
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case p.currentIsHistogramSum:
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p.currentMetric.Histogram.SampleSum = proto.Float64(value)
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case !math.IsNaN(p.currentBucket):
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p.currentMetric.Histogram.Bucket = append(
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p.currentMetric.Histogram.Bucket,
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&dto.Bucket{
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UpperBound: proto.Float64(p.currentBucket),
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CumulativeCount: proto.Uint64(uint64(value)),
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},
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)
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b := &dto.Bucket{
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UpperBound: proto.Float64(p.currentBucket),
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}
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if uintValue := uint64(value); value == float64(uintValue) {
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b.CumulativeCount = proto.Uint64(uintValue)
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} else {
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if value < 0 {
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p.parseError(fmt.Sprintf("negative bucket population for histogram %q", p.currentMF.GetName()))
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return nil
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}
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b.CumulativeCountFloat = proto.Float64(value)
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}
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p.currentMetric.Histogram.Bucket = append(p.currentMetric.Histogram.Bucket, b)
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}
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default:
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p.err = fmt.Errorf("unexpected type for metric name %q", p.currentMF.GetName())
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@ -602,10 +657,18 @@ func (p *TextParser) readingType() stateFn {
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if p.readTokenUntilNewline(false); p.err != nil {
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return nil // Unexpected end of input.
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}
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metricType, ok := dto.MetricType_value[strings.ToUpper(p.currentToken.String())]
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typ := strings.ToUpper(p.currentToken.String()) // Tolerate any combination of upper and lower case.
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metricType, ok := dto.MetricType_value[typ] // Tolerate "gauge_histogram" (not originally part of the text format).
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if !ok {
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p.parseError(fmt.Sprintf("unknown metric type %q", p.currentToken.String()))
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return nil
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// We also want to tolerate "gaugehistogram" to mark a gauge
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// histogram, because that string is used in OpenMetrics. Note,
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// however, that gauge histograms do not officially exist in the
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// classic text format.
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if typ != "GAUGEHISTOGRAM" {
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p.parseError(fmt.Sprintf("unknown metric type %q", p.currentToken.String()))
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return nil
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}
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metricType = int32(dto.MetricType_GAUGE_HISTOGRAM)
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}
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p.currentMF.Type = dto.MetricType(metricType).Enum()
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return p.startOfLine
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@ -855,7 +918,8 @@ func (p *TextParser) setOrCreateCurrentMF() {
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}
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histogramName := histogramMetricName(name)
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if p.currentMF = p.metricFamiliesByName[histogramName]; p.currentMF != nil {
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if p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
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if p.currentMF.GetType() == dto.MetricType_HISTOGRAM ||
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p.currentMF.GetType() == dto.MetricType_GAUGE_HISTOGRAM {
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if isCount(name) {
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p.currentIsHistogramCount = true
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}
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