hello,
is it recommended to use @try .. @catch blocks as flow control like it
is used in Python. They say explicitly to use it rather than do a lot
of test before just try if it works to look after it only if it fails.
I could imagine something:
- (id) layerInstance {
if ([[layerInstancesController selectedObjects] count] > 0) {
return [[layerInstancesController selectedObjects]
objectAtIndex:0];
}
return nil;
}
to look like:
- (id) layerInstance {
@try {
return [[layerInstancesController selectedObjects]
objectAtIndex:0];
}
@catch {
return nil;
}
}
it should run faster if I do not have the if clause? Or are there any
drawbacks?
Regards
Georg
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