[Known Issue] Native methods throwing Objective-C exceptions crash on Simulator when called from JavaScript

[mbektchiev]

Environment Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• iOS Runtime: 5.2.0-2018-12-28-111556-01

Describe the bug App crashes when calling a native function which throws an Objective-C exception from JavaScript, because of libffi's missing support for stack unwinding on iOS Simulator.

To Reproduce Execute an app containing the following code on a Simulator:

try { 
  NSArray.alloc().init().objectAtIndex(3);
} catch (e) {
  console.log("Caught error: ", e);
}

=> app crashes

Expected behavior The exception should be caught and logged and program execution should continue. It works as expected on actual devices.