func report()

in Sources/_TracingBenchmarkTools/DriverUtils.swift [667:695]

• 10 lines of code
• 2 McCabe index (conditional complexity)

        func report(_ index: String, _ t: BenchmarkInfo, results: BenchResults?) {
            func values(r: BenchResults) -> [String] {
                func quantiles(q: Int) -> [Int] {
                    let qs = (0 ... q).map { i in r[Double(i) / Double(q)] }
                    return c.delta ?
                        qs.reduce(into: (encoded: [], last: 0)) {
                            $0.encoded.append($1 - $0.last); $0.last = $1
                        }.encoded : qs
                }
                return (
                    [r.sampleCount] +
                        (
                            c.quantile.map(quantiles)
                                ?? [r.min, r.max, r.mean, r.sd, r.median]
                        ) +
                        [r.maxRSS].compactMap { $0 }
                ).map { (c.delta && $0 == 0) ? "" : String($0) } // drop 0s in deltas
            }
            let benchmarkStats = (
                [index, t.name] + (results.map(values) ?? ["Unsupported"])
            ).joined(separator: c.delim)

            print(benchmarkStats)
            fflush(stdout)

            if results != nil {
                testCount += 1
            }
        }