fn commit_histogram()

in glean-core/src/metrics/custom_distribution.rs [280:322]
41 lines of code
3 McCabe index (conditional complexity)

    fn commit_histogram(&self, histogram: Histogram<LinearOrExponential>) {
        let metric = self.clone();
        crate::launch_with_glean(move |glean| {
            glean
                .storage()
                .record_with(glean, &metric.meta, move |old_value| {
                    match metric.histogram_type {
                        HistogramType::Linear => {
                            let mut hist =
                                if let Some(Metric::CustomDistributionLinear(hist)) = old_value {
                                    hist
                                } else {
                                    Histogram::linear(
                                        metric.range_min,
                                        metric.range_max,
                                        metric.bucket_count as usize,
                                    )
                                };

                            hist._merge(&histogram);
                            Metric::CustomDistributionLinear(hist)
                        }
                        HistogramType::Exponential => {
                            let mut hist = if let Some(Metric::CustomDistributionExponential(
                                hist,
                            )) = old_value
                            {
                                hist
                            } else {
                                Histogram::exponential(
                                    metric.range_min,
                                    metric.range_max,
                                    metric.bucket_count as usize,
                                )
                            };

                            hist._merge(&histogram);
                            Metric::CustomDistributionExponential(hist)
                        }
                    }
                });
        });
    }