EXC_BAD_ACCESS when returning a CGRect in iPhone

Question

I have a class which must return a CGRect from one of its methods:

-(CGRect)myRect
{
    CGRect rect = CGRectMake(self.mySprite.position.x,self.mySprite.position.y,self.mySprite.textureRect.size.width, self.mySprite.textureRect.size.height);
    return rect;
}

I get an exc_bad_access as soon as i try to access the mySprite ivar.

Thing is if i call it, the instance variable mySprite is full of garbage. BUT if i change the function to return void, self.mySprite does contain the correct data.

-(void)myRect
{
    CGRect rect = CGRectMake(self.mySprite.position.x,self.mySprite.position.y,self.mySprite.textureRect.size.width, self.mySprite.textureRect.size.height);
    return rect;
}

that does not crash when accessing mySprite...

Answer 1

It might be that the compiler recognizes that the code in your second example does nothing and optimizes it away.

Answer 2

I could not solve this, i tried everything. All the objects accessed are ok,if i try to get a property from them just outside that method i get correct data, if i change the method to return anything else it works fine.

I solved this by having a general method on the main class and every object calls it passing itself to it. This way it works fine.