This is half a loaf. We'd really like a way to get an arbitrary Function's
name, not just the one who's call chain we happen to be in. It would be great
if we could discover a way to do this, perhaps with the introspection API? I'm
not sure we can build our own table, because I'm not sure that the "function"
reference you get in a call frame is comparable to the class method (it is a
closure over the method and the context).
On 2010-01-27, at 10:12, Henry Minsky wrote:
> Hey Tucker,
>
> The link that Raju sent does the following hack to use the Flash stack trace
> output to parse out a function's name in AS3 (when debugging is enabled)
>
> private function getFunctionName(e:Error):String
> {
> var s:String = e.getStackTrace();
> var i:int = s.indexOf("at ");
> var j:int = s.indexOf("()");
> return s.substring(i + 3, j);
> }
>
> private function getCallingFunctionName(e:Error):String
> {
> var s:String = e.getStackTrace();
> // trace(s);
> var i:int = s.indexOf("at ");
> i = s.indexOf("at ", i + 3);
> if (i == -1)
> return "caller unknown";
> var j:int = s.indexOf("()", i + 3);
> return s.substring(i + 3, j);
> }
>
> where the latter two functions are can be used like this:
>
> private function doSomething():void
> {
> trace(getFunctionName(new Error()));
> doit();
> }
>
>
> private function doit():void
> {
> trace(getFunctionName(new Error()));
> trace(" called by", getCallingFunctionName(new Error()));
>
>
>
> Could we do something like this in the deprecation method (or some
> more general place in the debugger)
> to print function names more informatively?
>
>
>
> On Wed, Jan 27, 2010 at 4:14 AM, Raju Bitter <[email protected]>wrote:
>
>> Max,
>>
>> what is the reason that the warning to use getDisplayObject() instead of
>> getMCRef() is not displayed correctly in DHTML? In SWF10 runtime I get the
>> warning
>>
>> INFO #helloView.Function is deprecated. Use the #helloView.Function instead
>>
>> In SWF8 and DHTML output is correct:
>> INFO %cssview.lzx#32: #helloView.getMCRef is deprecated. Use
>> #helloView.getDisplayObject instead
>>
>> Looking into the code
>> http://svn.openlaszlo.org/openlaszlo/trunk/WEB-INF/lps/lfc/views/LaszloView.lzsI
>> see that you just dump the function reference in the warning. I guess
>> that's because there's no API to retrieve a function's name in AS3. There is
>> a workaround, though, described here:
>> http://blogs.adobe.com/aharui/2007/10/debugging_tricks.html
>>
>> For this to work, you need to turn on the -verbose-stacktraces=true
>> compiler option - which I'm not sure is done for OpenLaszlo.
>>
>> - Raju
>>
>
>
>
> --
> Henry Minsky
> Software Architect
> [email protected]
