From cd7cc7d640048df7b0f63a569cfa6cd36a2ae3c0 Mon Sep 17 00:00:00 2001
From: ericlewis <ericlewis777@gmail.com>
Date: Mon, 25 Feb 2019 11:30:51 -0800
Subject: [PATCH] Fix deadstore in RCTSpringAnimation (#23643)

Summary:
Fixes an unused storage of variable.

[iOS] [Fixed] - Fix deadstore in RCTSpringAnimation
Pull Request resolved: https://github.com/facebook/react-native/pull/23643

Differential Revision: D14211089

Pulled By: hramos

fbshipit-source-id: 640d46be25f03d766698f6e85490c7d1a6a019fc
---
 Libraries/NativeAnimation/Drivers/RCTSpringAnimation.m | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Libraries/NativeAnimation/Drivers/RCTSpringAnimation.m b/Libraries/NativeAnimation/Drivers/RCTSpringAnimation.m
index b7e784b6c..179a18787 100644
--- a/Libraries/NativeAnimation/Drivers/RCTSpringAnimation.m
+++ b/Libraries/NativeAnimation/Drivers/RCTSpringAnimation.m
@@ -113,14 +113,12 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
   }
 
   // calculate delta time
-  NSTimeInterval deltaTime;
   if(_animationStartTime == -1) {
     _t = 0.0;
     _animationStartTime = currentTime;
-    deltaTime = 0.0;
   } else {
     // Handle frame drops, and only advance dt by a max of MAX_DELTA_TIME
-    deltaTime = MIN(MAX_DELTA_TIME, currentTime - _animationCurrentTime);
+    NSTimeInterval deltaTime = MIN(MAX_DELTA_TIME, currentTime - _animationCurrentTime);
     _t = _t + deltaTime / RCTAnimationDragCoefficient();
   }