Hey, I just noticed that the backtrace has a slot named 'undefined' too, and it
has an undefined value.
I wonder if it is something about the app that has made the debugger decide
that every object has a slot named 'undefined'?
LzError is not a dynamic class, so it will give an error if you try to access a
slot that does not exist, whereas LzBacktrace is dynamic, so a reference to a
non-existent slot will just return `undefined` [which we print `(void 0)`].
On 2010-11-30, at 15:52, Henry Minsky wrote:
> That is an improvement, the backtrace from the error is
> clickable/inspectable now.
>
> But do you have any idea what that "undefined: Error.." means when I inspect
> the LzError object ?
>
> lzx> Debug.inspect(«LzError(128)| @../../foundation/restricted/D…»)
> «LzError(128)#3| @../../foundation/restricted/DefinitionLoader.lzx#137:
> TypeError: Error #1010: A term is undefined and has no …» {
> backtrace: «Backtrace(26)| loadRegistryFile <- getDefinitionNode <-
> getDefinition <- handle oninit <- sendEvent <- __LZcallInit <- __LZc…»
> file: '../../foundation/restricted/DefinitionLoader.lzx'
> length: 128
> line: 137
> message: 'TypeError: Error #1010: A term is undefined and has no
> properties.'
> undefined: Error: ReferenceError: Error #… computing description
> }
> «LzError(128)#3| @../../foundation/restricted/DefinitionLoader.lzx#137:
> TypeError: Error #1010: A term is undefined and has no properties.»
> lzx> Debug.inspect(«Backtrace(26)| loadRegistryFile <- getDefini…»)
> «Backtrace(26)#5| loadRegistryFile <- getDefinitionNode <- getDefinition <-
> handle oninit <- sendEvent <- __LZcallInit <- __LZc…» {
> length: 26
> undefined: (void 0)
> 0: sendEvent @lfc/events/LaszloEvents.lzs#627
> 1: checkQ @lfc/services/LzInstantiator.lzs#250
> 2: makeSomeViews @lfc/services/LzInstantiator.lzs#314
> 3: __LZinstantiationDone @lfc/views/LaszloCanvas.lzs#732
> 4: __LZcallInit @lfc/views/LaszloCanvas.lzs#801
> 5: sendEvent @lfc/events/LaszloEvents.lzs#627
> 6: handle oninit @ManagementCenter.lzx#256
> 7: startApp @ManagementCenter.lzx#145
> 8: $lzc$class_wcfMainWorkbench @#34
> 9: $lzc$class_basecomponent @#446
> 10: LzView @lfc/views/LaszloView.lzs#51
> 11: LzNode @lfc/core/LzNode.lzs#351
> 12: createChildren @lfc/core/LzNode.lzs#1440
> 13: createImmediate @lfc/services/LzInstantiator.lzs#336
> 14: makeSomeViews @lfc/services/LzInstantiator.lzs#314
> 15: __LZinstantiationDone @lfc/views/LaszloView.lzs#555
> 16: __LZinstantiationDone @lfc/core/LzNode.lzs#1084
> 17: __LZcallInit @lfc/core/LzNode.lzs#1135
> 18: __LZcallInit @lfc/core/LzNode.lzs#1135
> 19: __LZcallInit @lfc/core/LzNode.lzs#1135
> 20: __LZcallInit @lfc/core/LzNode.lzs#1160
> 21: sendEvent @lfc/events/LaszloEvents.lzs#627
> 22: handle oninit @ApplicationMenu.lzx#195
> 23: getDefinition @../../foundation/restricted/DefinitionLoader.lzx#266
> 24: getDefinitionNode
> @../../foundation/restricted/DefinitionLoader.lzx#234
> 25: loadRegistryFile @../../foundation/restricted/DefinitionLoader.lzx#137
>
> }
> «Backtrace(26)#5| loadRegistryFile <- getDefinitionNode <- getDefinition <-
> handle oninit <- sendEvent <- __LZcallInit <- __LZcallInit <- __LZcal…»
> lzx>
>
> On Tue, Nov 30, 2010 at 3:18 PM, P T Withington <[email protected]> wrote:
>
>> Change ptw-20101130-MEn by [email protected] on 2010-11-30 14:08:04 EST
>> in /Users/ptw/OpenLaszlo/trunk-3
>> for http://svn.openlaszlo.org/openlaszlo/trunk
>>
>> Summary: Be more careful in Debug.inspect
>>
>> Bugs Fixed: LPP-9553 Inspecting a Backtrace in SWF10 gets error when
>> printing to debug console
>>
>> Technical Reviewer: [email protected] (pending)
>> QA Reviewer: [email protected] (pending)
>>
>> Overview:
>>
>> Move the slot-dereference from inspectInternal to
>> computeSlotDescription (which is already guarded).
>>
>> Tests:
>>
>> Henry will test against the gigantic test case he has that is to
>> large to fit in the margins of this note.
>>
>> Files:
>> M WEB-INF/lps/lfc/debugger/LzDebug.lzs
>>
>> Changeset:
>> http://svn.openlaszlo.org/openlaszlo/patches/ptw-20101130-MEn.tar
>>
>
>
>
> --
> Henry Minsky
> Software Architect
> [email protected]
