[TIMOB-18135] iOS: App is crashing for null check in JavaScript variables

GitHub Issue	n/a
Type	Bug
Priority	Critical
Status	Closed
Resolution	Fixed
Resolution Date	2014-12-07T23:35:00.000+0000
Affected Version/s	Release 3.5.0
Fix Version/s	Release 3.5.0, Release 4.0.0
Components	iOS
Labels	qe-3.5.0, qe-assigned, regression
Reporter	Kajenthiran Velummaylum
Assignee	Vishal Duggal
Created	2014-12-04T05:53:24.000+0000
Updated	2014-12-09T23:16:25.000+0000

Description

Titanium Apps are crashing when object null checks are used inside app.js file. This is a *regression* since same code works fine in 3.4.1

Steps To Reproduce

1. Create an app using following code

var b = null;
if (b != null) 
{ 
	// do something
}

2. Run the App in iOS device with 3.5.0 SDK

Actual Result

App is crashing

Expected Result

App should not crash.

Comments

Ingo Muschenetz 2014-12-04

Is this a duplicate of TIMOB-18118?

Kajenthiran Velummaylum 2014-12-04

Following codes are not crashing

   //code 1
   var b = 1;
   if (b != null) 
   { 
       // do something
   }
   
   //code 2
   var b = null;
   if (b == null) 
   { 
       // do something
   }

Use cases: KitchenSink -> Base UI -> Window (Standalone) is crashing for same reason with 3.5.0 SDK

Kajenthiran Velummaylum 2014-12-04

Yes [~ingo] It's a duplicate of TIMOB-18118 In TIMOB-18118, It's crashing in the same syntax. Following is the actual code of crash in the ticket if (null != b && null != e) // It crashes in this line if either 'b' or 'e' is null. // some code here
Eric Wieber 2014-12-09

Verified fixed using: Titanium SDK 3.5.0.v20141208122514 Studio 3.4.1.201410281743 Xcode 6.1.1 On: iPad mini, iOS 8.1 iPhone 6, iOS 8.2b iPhone 4S Sim, iOS 8.1

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