Comments on: Miscellaneous Utility Functions

By: theme park tours

theme park tours — Wed, 28 Jul 2010 03:26:42 +0000

Been looking for some good comment suggestions for a while now. This is perfect!

By: jackson

jackson — Wed, 30 Dec 2009 18:36:59 +0000

Cool, this is more incentive to change my version. Here’s my performance test:

const ITERATIONS:int = 1000000;
var i:int;
var beforeTime:int;
 
beforeTime = getTimer();
for (i = 0; i < ITERATIONS; ++i)
{
    throwForStackTrace();
}
log("throw: " + (getTimer()-beforeTime));
 
beforeTime = getTimer();
for (i = 0; i < ITERATIONS; ++i)
{
    newForStackTrace();
}
log("new: " + (getTimer()-beforeTime));

With results:

Environment	Throw	New
3.0 Ghz Intel Core 2 Duo, 4 GB, Windows XP	1298	403

So it’s about 3x faster. Thanks for the tips and tests grgrdvrt and NoriSte!

By: NoriSte

NoriSte — Wed, 30 Dec 2009 16:56:53 +0000

and not throwing an error is faster, here the code

        public function throwForStackTrace () : String
        {
            try
            {
                throw( new Error() );
            }
            catch( error : Error )
            {
                return error.getStackTrace();;
            }
 
            return null;
        }
 
 
 
        public function newForStackTrace () : String
        {
            return new Error().getStackTrace();
        }

and the result:

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
throwForStackTrace (100000 iterations)
Player version: MAC 10,0,22,91 (debug)
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
method……………………………………………ttl ms…avg ms
throwForStackTrace 2710 0.03
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
newForStackTrace (100000 iterations)
Player version: MAC 10,0,22,91 (debug)
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
method……………………………………………ttl ms…avg ms
newForStackTrace 1774 0.02
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

By: grgrdvrt

grgrdvrt — Sat, 12 Dec 2009 12:01:13 +0000

The getTraceStack is very nice, thank you!

However it seems to be possible to get the stack trace without throwing the error:

trace(new Error().getStackTrace());


I know I will use it a lot, thank you again!