[Glass] How can I get the start/end of a step in a GsContext?

[Dale Henrichs via Glass]

Mariano,

Take a look at TDStackFrame>>calculateSelectionRange ...

You can easily look at the implementation of the debugger ... in the 
text pane that has the highlighted source from the debugger, use the 
`Window > inspect builder` menu item to bring up the code that 
implements that pane ... you'll get an inspector on something like this:

Inspect aTDStackFrameMethodElementBuilder/
--------------------
.                  -> aTDStackFrameMethodElementBuilder
(class)@           -> TDStackFrameMethodElementBuilder
(oop)@             -> 204640769
formatOnAccept@    -> nil
formatOnDisplay@   -> nil
object@            -> 
SmallInteger(Object)>>_doesNotUnderstand:args:envId:reason: @7 line 12
objectBlock@       -> nil
theEditorSpec@     -> aTDEditorSpec
theWindowLocation@ -> nil
theWindowName@     -> nil

and then clicking on the `object` field, you'll find what I think your 
are looking for:

Inspect 
aTDStackFrameMethodElementBuilder/SmallInteger(Object)>>_doesNotUnderstand:args:envId:reason: 
@7 line 12/
--------------------
.                -> 
SmallInteger(Object)>>_doesNotUnderstand:args:envId:reason: @7 line 12
..               -> aTDStackFrameMethodElementBuilder
(class)@         -> TDStackFrame
(oop)@           -> 197204737
argAndTempNames@ -> anArray( 'aSymbol', 'anArray', 'aSmallInt', 
'dnuKind', '.t1', '.t2')
frameContents@   -> anArray( aGsNMethod, 144, nil, nil, nil, nil, nil, 
2, anArray( #'aSymbol', #'anArray', #'aSmallInt', #'dnuKind', '.t1', 
'.t2'), 2, #'foo'...
frameIndex@      -> 5
next@            -> Executed Code
previous@        -> SmallInteger(Object)>>doesNotUnderstand: @10 line 10
selectionRange@  -> anInterval( 579, 580, 581, 582, 583, 584, 585, 586, 
587, 588, 589, 590, 591, 592, 593, 594, 595, 596, 597, 598, 599, 600, 
601, 602, 603, ...
stack@           -> error printing

You will see that the object behind the text pane is a TDStackFrame with 
an instance variable selectionRange ... and that should lead you to 
TDStackFrame>>calculateSelectionRange....

Most of the raw information you will need is in the frameContents that 
you can get from the continuation instance ...

Hope this helps,

Dale

On 11/3/17 2:22 PM, Mariano Martinez Peck via Glass wrote:
> Hi guys,
>
> Imagine the debugger prints
>
> "8. [] in 
> DpQuuveProductionWalkbackErrorHandler(WAExceptionHandler)>>handleExceptionsDuring: 
> @7 line 8"
>
> I manage to get to do doing some hack like this:
>
> (self instVarNamed: 'continuation' )  _reportAt: 8
>
> I understand 7 is the step pointer and 8 is the line number. The 
> debugger knows where to start and where to stop that part of the step. 
> See attached picture. See the blue text? how can I ask that to the 
> GsContext ?
>
> Thanks in advance,
>
> -- 
> Mariano
> http://marianopeck.wordpress.com
>
>
> _______________________________________________
> Glass mailing list
> Glass at lists.gemtalksystems.com
> http://lists.gemtalksystems.com/mailman/listinfo/glass

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