Only attempt to clear measures if we created the measure (facebook#9451)

This fixes an issue where if we decided not to create a measurement we would clear ALL measurements from the performance entry buffer due to passing `undefined` as the entry name.
flarnie · Jun 7, 2017 · 71cb44d · 71cb44d
1 parent 15dcadf
commit 71cb44d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/renderers/shared/ReactDebugTool.js b/src/renderers/shared/ReactDebugTool.js
@@ -291,7 +291,9 @@ function markEnd(debugID, markType) {
   }
 
   performance.clearMarks(markName);
-  performance.clearMeasures(measurementName);
+  if (measurementName) {
+    performance.clearMeasures(measurementName);
+  }
 }
 
 var ReactDebugTool = {