func appendCell()

in pkg/updater/updater.go [1171:1227]
51 lines of code
12 McCabe index (conditional complexity)

func appendCell(row *statepb.Row, cell Cell, start, count int) {
	latest := int32(cell.Result)
	n := len(row.Results)
	switch {
	case n == 0, row.Results[n-2] != latest:
		row.Results = append(row.Results, latest, int32(count))
	default:
		row.Results[n-1] += int32(count)
	}

	addCellID := hasCellID(row.Name)

	for i := 0; i < count; i++ {
		columnIdx := int32(start + i)
		for metricName, measurement := range cell.Metrics {
			var metric *statepb.Metric
			var ok bool
			for _, name := range row.Metric {
				if name == metricName {
					ok = true
					break
				}
			}
			if !ok {
				row.Metric = append(row.Metric, metricName)
			}
			for _, metric = range row.Metrics {
				if metric.Name == metricName {
					break
				}
				metric = nil
			}
			if metric == nil {
				metric = &statepb.Metric{Name: metricName}
				row.Metrics = append(row.Metrics, metric)
			}
			// len()-1 because we already appended the cell id
			appendMetric(metric, columnIdx, measurement)
		}
		if cell.Result == statuspb.TestStatus_NO_RESULT {
			continue
		}
		if addCellID {
			// These values can be derived from the parent row and don't need to be repeated here.
			row.CellIds = append(row.CellIds, cell.CellID)
			row.Properties = append(row.Properties, &statepb.Property{
				Property: cell.Properties,
			})
		}
		// Javascript client expects no result cells to skip icons/messages
		row.Messages = append(row.Messages, truncate(cell.Message, 140))
		row.Icons = append(row.Icons, cell.Icon)
		row.UserProperty = append(row.UserProperty, cell.UserProperty)
	}

	row.Issues = append(row.Issues, cell.Issues...)
}