Reply To: EXE_BAD_ACCESS error in Xcode

August 26, 2016 at 2:05 pm #18415

emilio.saffi

Participant

I was debugging a bit this morning and I seem to have found the cause of the issue. XCode was catching the EXE_BAD_ACCESS when trying to use a null reference in the NodeCanvas.Framework.Task.Set protected function:
[attachment file=”Screen Shot 2016-08-26 at 13.59.34.png”]

To mitigate this I replaced the try/catch blocks with some code that would not throw the same exception. I would be grateful if you could review the following fix and share your thoughts on it:

//Actions and Conditions call this before execution. Returns if the task was sucessfully initialized as well

protected bool Set(Component newAgent, IBlackboard newBB){

//set blackboard with normal setter first

blackboard = newBB;

/// DIVERGENCE /// MORI /// emilio.saffi /// Xcode was catching EXE_BAD_ACCESS

if (agentIsOverride){

newAgent = (Component)overrideAgent.value;

}

if (current && newAgent && current.gameObject == newAgent.gameObject ){

return isActive = true;

}

return isActive = Initialize(newAgent, agentType);

/// DIVERGENCE /// MORI /// emilio.saffi /// Xcode was catching EXE_BAD_ACCESS

}

[attachment file=”Screen Shot 2016-08-26 at 13.54.31.png”]