Migrate createPerformanceLogger to ESM and export getCurrentTimestamp

Summary: Changelog: [internal]

Reviewed By: lunaleaps

Differential Revision: D24476172

fbshipit-source-id: 5afa58935a6a3a8e1d2d0d0bb8b3b28840fc17f4

Libraries/Network/__tests__/XMLHttpRequest-test.js

@@ -10,12 +10,13 @@
 
 'use strict';
 
+import createPerformanceLogger from '../../Utilities/createPerformanceLogger';
+
 jest.unmock('../../Utilities/Platform');
 jest.mock('../../Utilities/GlobalPerformanceLogger');
 
 const Platform = require('../../Utilities/Platform');
 const GlobalPerformanceLogger = require('../../Utilities/GlobalPerformanceLogger');
-const createPerformanceLogger = require('../../Utilities/createPerformanceLogger');
 let requestId = 1;
 
 function setRequestId(id) {

Libraries/ReactNative/AppRegistry.js

@@ -18,9 +18,9 @@ const SceneTracker = require('../Utilities/SceneTracker');
 const infoLog = require('../Utilities/infoLog');
 const invariant = require('invariant');
 const renderApplication = require('./renderApplication');
-const createPerformanceLogger = require('../Utilities/createPerformanceLogger');
 import type {IPerformanceLogger} from '../Utilities/createPerformanceLogger';
 
+import createPerformanceLogger from '../Utilities/createPerformanceLogger';
 import NativeHeadlessJsTaskSupport from './NativeHeadlessJsTaskSupport';
 import HeadlessJsTaskError from './HeadlessJsTaskError';
 

Libraries/Utilities/GlobalPerformanceLogger.js

@@ -9,8 +9,8 @@
  */
 
 'use strict';
-const createPerformanceLogger = require('./createPerformanceLogger');
 
+import createPerformanceLogger from './createPerformanceLogger';
 import type {IPerformanceLogger} from './createPerformanceLogger';
 
 /**

Libraries/Utilities/createPerformanceLogger.js

@@ -13,8 +13,6 @@
 const Systrace = require('../Performance/Systrace');
 
 const infoLog = require('./infoLog');
-const performanceNow: () => number =
-  global.nativeQPLTimestamp ?? global.performance.now.bind(global.performance);
 
 export type Timespan = {
   startTime: number,
@@ -60,6 +58,9 @@ const _cookies: {[key: string]: number, ...} = {};
 
 const PRINT_TO_CONSOLE: false = false; // Type as false to prevent accidentally committing `true`;
 
+export const getCurrentTimestamp: () => number =
+  global.nativeQPLTimestamp ?? global.performance.now.bind(global.performance);
+
 class PerformanceLogger implements IPerformanceLogger {
   _timespans: {[key: string]: ?Timespan} = {};
   _extras: {[key: string]: ?ExtraValue} = {};
@@ -139,7 +140,7 @@ class PerformanceLogger implements IPerformanceLogger {
   }
 
   currentTimestamp() {
-    return performanceNow();
+    return getCurrentTimestamp();
   }
 
   getExtras() {
@@ -203,7 +204,7 @@ class PerformanceLogger implements IPerformanceLogger {
       }
       return;
     }
-    this._points[key] = timestamp ?? performanceNow();
+    this._points[key] = timestamp ?? getCurrentTimestamp();
     if (extras) {
       this._pointExtras[key] = extras;
     }
@@ -257,7 +258,7 @@ class PerformanceLogger implements IPerformanceLogger {
     }
 
     this._timespans[key] = {
-      startTime: performanceNow(),
+      startTime: getCurrentTimestamp(),
       startExtras: extras,
     };
     _cookies[key] = Systrace.beginAsyncEvent(key);
@@ -295,7 +296,7 @@ class PerformanceLogger implements IPerformanceLogger {
     }
 
     timespan.endExtras = extras;
-    timespan.endTime = performanceNow();
+    timespan.endTime = getCurrentTimestamp();
     timespan.totalTime = timespan.endTime - (timespan.startTime || 0);
     if (PRINT_TO_CONSOLE) {
       infoLog('PerformanceLogger.js', 'end: ' + key);
@@ -313,8 +314,6 @@ class PerformanceLogger implements IPerformanceLogger {
  * various performance data such as timespans, points and extras.
  * The loggers need to have minimal overhead since they're used in production.
  */
-function createPerformanceLogger(): IPerformanceLogger {
+export default function createPerformanceLogger(): IPerformanceLogger {
   return new PerformanceLogger();
 }
-
-module.exports = createPerformanceLogger;