/* Copyright (c) 2014-present, Facebook, Inc.

* All rights reserved.

*

* This source code is licensed under the BSD-style license found in the

* LICENSE file in the root directory of this source tree. An additional grant

* of patent rights can be found in the PATENTS file in the same directory.

*/

#pragma once

/**

Must compile as c++ for this to work.

Usage:

// Can be an ivar or local variable

NSTimeInterval placeToStoreTiming;

{

// some scope

ASDisplayNode::ScopeTimer t(placeToStoreTiming);

DoPotentiallySlowWork();

MorePotentiallySlowWork();

}

*/

namespace ASDN {

struct ScopeTimer {

NSTimeInterval begin;

NSTimeInterval &outT;

ScopeTimer(NSTimeInterval &outRef) : outT(outRef) {

begin = CACurrentMediaTime();

}

~ScopeTimer() {

outT = CACurrentMediaTime() - begin;

}

};

}