If I can solve LPP-8222 by having catch-errors on by default in debug mode, with a #pragma to avoid catching intentional throws of error objects, I think we don't need a toggle in the console.

On 2009-09-14, at 20:42, Henry Minsky wrote:

Adding an option to toggle the catcherrors flag into the dev-console would be implemented similar to how the debug and backtrace flags are handled now.


I think I could add this pretty easily if there's a demand for it.


On Mon, Sep 14, 2009 at 8:24 PM, James Robey <[email protected]> wrote:

P T Withington wrote:

[cc-ing Laszlo-Dev, in case other people want to chime in.]

On 2009-09-14, at 19:56, James Robey wrote:

I want to define bomb silently again, to be sure you understand; bomb
silently means that the runtime halts the initialization stage at the time of error, often leaving applications completeIy blank and unresponsive, depending on how deep in the API the problem occurs. There is no debugger warning. I've notice a large group of situations where the runtime will halt in this fashion, and because i'd like to help i'd like to ask the following
question:

Are all of these bugs to be reported?


I think that this bug:

http://jira.openlaszlo.org/jira/browse/LPP-8151

probably is sufficient for the "bomb silently", problem for now.

I went back and looked at the state of debugger support for catching
errors and see that I only enabled it in the case where backtracing is on, but we don't support backtraces in swf9 yet, so that's basically a no-op. In DHTML, you have a similar situation, there are errors that will halt Javascript in the browser that would not cause an error in swf8. In DHTML, you have to resort to the browser debugger (Firebug, Webkit's built-in, IE's add-on), just as you have to resort to the Flex debugger in swf9 to track these down. In DHTML, I tried to help a little bit by enabling the catching of errors automatically when you turn on backtracing (since backtracing needs to establish try/finally blocks anyways), but... You'll see that I am prevented from having the debugger always catch errors and report them by:

http://jira.openlaszlo.org/jira/browse/LPP-8222

so I am trying to come up with a compromise.  It will probably be
something along the lines of Java, where if you mean for a method to be able
to throw a runtime error, you have to declare it so.

I actually read the jira entries, most informative, thanks.

May I suggest that it be an option along side the debug checkbox in the tomcat interface? if it's quick to patch it in as a query parameter, the decrease in testing time would be worth it (to me, right now). Having to switch and reload flash movies in the flash debugger isn't fun, for number of actions and since it also means web resources don't act quite the same
(e.g. no url)

Perhaps you could illustrate briefly how hard a fix like that would be? I
wouldn't know where to start.




--
Henry Minsky
Software Architect
[email protected]

Reply via email to