Here's the test case, it looks like the return out of the "with (this)" is
screwing up the flex runtime
/**
* sprite tests
*
* @copyright Copyright 2001-2009 Laszlo Systems, Inc. All Rights
Reserved.
* Use is subject to license terms.
*
* @topic Kernel
* @subtopic AS3
*/
package {
import flash.display.*;
import flash.events.*;
public class TestVerify extends Sprite {
public function TestVerify () {
trace('running TestVerify');
var foobar = function () {
try {
// Uncomment the 'with (this) ' below, and you will get a
verify error
with (this) {
trace('with this, and return');
// the return seems to leave the scope stack unbalanced
return;
}
}
catch (e) {
trace('catch');
}
finally {
trace('finally');
}
}
foobar();
}
}
}
To run it do
~/openlaszlo/trunk6/WEB-INF/bin/mxmlc -debug=true TestVerify.as
fdb TestVerify.swf
On Wed, Sep 30, 2009 at 12:06 AM, Henry Minsky <[email protected]>wrote:
> So I think I found a flex compiler bug. I'm trimming it down to a minimal
> test case, but it seems to
> trigger a 'verify' error when you call a function expression which contains
> some flavor of that try/catch/finally
> that you're generating.
>
>
>
> On Tue, Sep 29, 2009 at 11:27 PM, Henry Minsky
> <[email protected]>wrote:
>
>> So when the fdb debugger runs, it prints out a bunch of things that look
>> like maybe verifier errors, starting with
>>
>> [trace] verify <anonymous>()
>> [trace] exception[0] from=47 to=186 target=192 type=*
>> name=$lzsc$e
>> [trace] exception[1] from=45 to=281 target=285 type=*
>> name=(none)
>> [trace] stack:
>> [trace] scope: [global Object$ LzEventable$
>> LzNode$ LzView$ $lzc$class_LzDebugWindow$]
>> [trace] locals: Object * * *
>> [trace] 0:debugfile
>> "/Users/hqm/openlaszlo/lib/jakarta-tomcat-5.0.30/temp/lzswf9/Users/hqm/openlaszlo/trunk6/test/foo/build/hello;;$lzc$class_LzDebugWindow.as"
>> [trace] stack:
>> [trace] scope: [global Object$ LzEventable$
>> LzNode$ LzView$ $lzc$class_LzDebugWindow$]
>> [trace] locals: Object * * *
>> [trace] 3:debugline 36
>> [trace] stack:
>> [trace] scope: [global Object$ LzEventable$
>> LzNode$ LzView$ $lzc$class_LzDebugWindow$]
>> [trace] locals: Object * * *
>> [trace] 5:newactivation
>> [trace] stack: <anonymous>
>>
>>
>> The intermediate .as files made by compiling swf10 get stuck into a temp
>> dir in tomcat, on my machine that's
>>
>> ~/openlaszlo/lib/jakarta-tomcat-5.0.30/temp/lzswf9/Users/hqm/openlaszlo/trunk6/test/foo/build/hello/
>> for a test app test/foo/hello.lzx
>>
>> The lzDebugWindow.as file shows this code block which ends at line 36
>> (it's an anonymous method
>> on LzDebugWindow class)
>>
>> function ($lzc$ignore_$1) {
>> /* -*- file: -*- */
>> var $lzsc$d_$3 = Debug;
>> var $lzsc$s_$4 = $lzsc$d_$3.backtraceStack;
>> try {
>> if ($lzsc$s_$4) {
>> var $lzsc$a_$5 = [$lzc$ignore_$1];
>> $lzsc$a_$5.callee = "applied='${...}'";
>> $lzsc$a_$5["this"] = this;
>> $lzsc$a_$5.filename = "debugger/debugger.lzx";
>> $lzsc$a_$5.lineno = 122;
>> $lzsc$s_$4.push($lzsc$a_$5);
>> if ($lzsc$s_$4.length > $lzsc$s_$4.maxDepth) {
>> $lzsc$d_$3.stackOverflow()
>> }};
>> with (this) {
>> /* -*- file: debugger/debugger.lzx#122.262 -*- */
>> var $lzc$newvalue_$2 = parent.default_width;
>> /* -*- file: -*- */
>> if ($lzc$newvalue_$2 !== this["applied"] || !this.inited) {
>> $lzsc$a_$5.lineno = 128, this.setAttribute("applied", $lzc$newvalue_$2)
>> }}}
>> catch ($lzsc$e) {
>> if ($lzsc$e is Error && $lzsc$e !== lz["$lzsc$thrownError"]) {
>> $lzsc$runtime.reportException("debugger/debugger.lzx", $lzsc$a_$5.lineno,
>> $lzsc$e)
>> } else {
>> throw $lzsc$e
>> }}
>> finally {
>> if ($lzsc$s_$4) {
>> $lzsc$s_$4.pop()
>> }}}
>>
>> So I'm going to look at that and see if there's something that might be
>> confusing the flex compiler...
>>
>>
>> On Tue, Sep 29, 2009 at 6:13 PM, P T Withington <[email protected]> wrote:
>>
>>> [This is not really a review request, more a request for collaboration.
>>> I've made a cut at getting the backtrace annotations working in swf9 and
>>> made a lot of progress, but it is currently bombing in a way that I can't
>>> debug. I'm using:
>>>
>>> fdb "
>>> http://repo-man.home:8080/trunk/test/smoke/simple.lzx?debug=true&lzr=swf10&lzbacktrace=true
>>> "
>>>
>>> as my test case. It halts implying that canvas has no makeChild method.
>>> If anyone feels like unpacking this and playing around to see if they can
>>> push it along, that would be great... I've got to stop for the day.]
>>>
>>> Change 20090929-ptw-y by [email protected] on 2009-09-29 18:01:59 EDT
>>> in /Users/ptw/OpenLaszlo/trunk
>>> for http://svn.openlaszlo.org/openlaszlo/trunk
>>>
>>> Summary: A cut at getting backtracing to work in swf9
>>>
>>> Bugs Fixed: LPP-8479 Debug.evalCarefully not necessary after LPP-8222?
>>> [I got carried away trying to make the line numbering in the debugger
>>> more accurate...]
>>>
>>> Technical Reviewer: hminsky (pending)
>>> QA Reviewer: [email protected] (pending)
>>>
>>> Release Notes:
>>> The debugger indicates when the file/line information on a debugger
>>> message is not accurate. If the location information is coming
>>> from the view associated with the error, rather than @file it will
>>> print %file. If the line number is only approximate (backtracing
>>> is not enabled), rather than #line it will print ~line.
>>>
>>> Details:
>>>
>>>
>>> Tests:
>>> Nothing works yet...
>>>
>>> Files:
>>> M test/smoke/lztext.lzl
>>> M test/smoke/lzunit-test.lzl
>>> M WEB-INF/lps/lfc/kernel/swf9/LzPreloader.as
>>> M WEB-INF/lps/lfc/kernel/swf9/LFCApplication.as
>>> M WEB-INF/lps/lfc/debugger/LzMessage.lzs
>>> M WEB-INF/lps/lfc/debugger/LzDebug.lzs
>>> M WEB-INF/lps/lfc/debugger/platform/swf9/LzDebug.as
>>> M WEB-INF/lps/lfc/debugger/LzMonitor.lzs
>>> M WEB-INF/lps/lfc/debugger/LzTrace.lzs
>>> M WEB-INF/lps/lfc/debugger/LzBacktrace.lzs
>>> M WEB-INF/lps/lfc/build.xml
>>> M WEB-INF/lps/lfc/compiler/LzDebugStub.lzs
>>> M WEB-INF/lps/lfc/compiler/LzBootstrapDebugService.lzs
>>> M WEB-INF/lps/server/src/org/openlaszlo/cm/CompilationManager.java
>>> M WEB-INF/lps/server/src/org/openlaszlo/sc/JavascriptGenerator.java
>>> M WEB-INF/lps/server/src/org/openlaszlo/sc/SWF9External.java
>>> M WEB-INF/lps/server/src/org/openlaszlo/sc/SWF9Generator.java
>>> M WEB-INF/lps/server/src/org/openlaszlo/sc/Compiler.java
>>> M
>>> WEB-INF/lps/server/src/org/openlaszlo/compiler/ToplevelCompiler.java
>>> M WEB-INF/lps/server/src/org/openlaszlo/compiler/SWF9Writer.java
>>> M WEB-INF/lps/templates/info-response.xslt
>>> M lps/components/debugger/platform/swf9/eval.lzs
>>>
>>> Changeset:
>>> http://svn.openlaszlo.org/openlaszlo/patches/20090929-ptw-y.tar
>>>
>>
>>
>>
>> --
>> Henry Minsky
>> Software Architect
>> [email protected]
>>
>>
>>
>
>
> --
> Henry Minsky
> Software Architect
> [email protected]
>
>
>
--
Henry Minsky
Software Architect
[email protected]
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