From f87d2e15bda36823d27335538673e47f4951be4c Mon Sep 17 00:00:00 2001
From: Alexey Lang <alexeylang@fb.com>
Date: Mon, 26 Oct 2015 12:50:54 -0700
Subject: [PATCH] Support log extras

Reviewed By: javache

Differential Revision: D2580869

fb-gh-sync-id: bd24c976aef09243cd11b408d0f37997e400d238
---
 Libraries/Utilities/PerformanceLogger.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Libraries/Utilities/PerformanceLogger.js b/Libraries/Utilities/PerformanceLogger.js
index e75611974..37d19c795 100644
--- a/Libraries/Utilities/PerformanceLogger.js
+++ b/Libraries/Utilities/PerformanceLogger.js
@@ -14,6 +14,7 @@
 var performanceNow = require('performanceNow');
 
 var timespans = {};
+var extras = {};
 
 /**
  * This is meant to collect and log performance data in production, which means
@@ -72,6 +73,7 @@ var PerformanceLogger = {
 
   clearTimespans() {
     timespans = {};
+    extras = {};
   },
 
   getTimespans() {
@@ -99,6 +101,23 @@ var PerformanceLogger = {
         label
       );
     }
+  },
+
+  setExtra(key, value) {
+    if (extras[key]) {
+      if (__DEV__) {
+        console.log(
+          'PerformanceLogger: Attempting to set an extra that already exists ',
+          key
+        );
+      }
+      return;
+    }
+    extras[key] = value;
+  },
+
+  getExtras() {
+    return extras;
   }
 };