| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | const perf_hooks_1 = require("perf_hooks");
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| 4 | function createPerformance() {
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| 5 | let enabled = false;
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| 6 | let timeOrigin;
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| 7 | let marks;
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| 8 | let measurements;
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| 9 | function enable() {
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| 10 | enabled = true;
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| 11 | marks = new Map();
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| 12 | measurements = new Map();
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| 13 | timeOrigin = perf_hooks_1.performance.now();
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| 14 | }
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| 15 | function disable() {
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| 16 | enabled = false;
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| 17 | }
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| 18 | function mark(name) {
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| 19 | if (enabled) {
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| 20 | marks.set(name, perf_hooks_1.performance.now());
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| 21 | }
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| 22 | }
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| 23 | function measure(name, startMark, endMark) {
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| 24 | if (enabled) {
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| 25 | const start = (startMark && marks.get(startMark)) || timeOrigin;
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| 26 | const end = (endMark && marks.get(endMark)) || perf_hooks_1.performance.now();
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| 27 | measurements.set(name, (measurements.get(name) || 0) + (end - start));
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| 28 | }
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| 29 | }
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| 30 | function markStart(name) {
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| 31 | if (enabled) {
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| 32 | mark(`${name} start`);
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| 33 | }
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| 34 | }
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| 35 | function markEnd(name) {
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| 36 | if (enabled) {
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| 37 | mark(`${name} end`);
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| 38 | measure(name, `${name} start`, `${name} end`);
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| 39 | }
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| 40 | }
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| 41 | function formatName(name, width = 0) {
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| 42 | return `${name}:`.padEnd(width);
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| 43 | }
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| 44 | function formatDuration(duration, width = 0) {
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| 45 | return `${(duration / 1000).toFixed(2)} s`.padStart(width);
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| 46 | }
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| 47 | function print() {
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| 48 | if (enabled) {
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| 49 | let nameWidth = 0;
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| 50 | let durationWidth = 0;
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| 51 | measurements.forEach((duration, name) => {
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| 52 | nameWidth = Math.max(nameWidth, formatName(name).length);
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| 53 | durationWidth = Math.max(durationWidth, formatDuration(duration).length);
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| 54 | });
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| 55 | measurements.forEach((duration, name) => {
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| 56 | console.log(`${formatName(name, nameWidth)} ${formatDuration(duration, durationWidth)}`);
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| 57 | });
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| 58 | }
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| 59 | }
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| 60 | return { enable, disable, mark, markStart, markEnd, measure, print };
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| 61 | }
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| 62 | exports.createPerformance = createPerformance;
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