Thanks Cl�ment.

Making that setting change, then "Compiler recompileAll" did fix the problem.
However following up with "OpalCompiler recompileAll" does not reintroduce the problem.

Starting again with a fresh build #30564, I confirmed the problem was there,
then first did "OpalCompiler recompileAll" and the problem remained.

btw, (sorry) a correction below,
the place to insert the breakpoint was SpecLayout>>privateAsArray
not SpecRowLayout>>privateAsArray.

regards, Ben

Cl�ment Bera wrote:

There is a bug left in double nested blocks in the debugger (some variables
then shows incorrect value).

Retry with the old compiler (world menu>settings>compiler>Compiler) and see
if this is fixed.



2013/11/11 Max Leske <maxleske@gmail.com>

  

Not sure if it�s related to your issue but I�ve been seeing swapped
temporary variables in the debugger. The value used for execution is
correct but in the view two variables will have the value of the other.
Are you sure that the value *effectively* changes or could it be a
visualization problem?

Max

On 11.11.2013, at 17:29, btc@openinworld.com wrote:

    

I'm not sure if I'm missing something, but there seems some strange
      

behavior that I don't understand.  The value of a block variable changes
when stepping over a method that acts on that variable.  I encountered this
in Spec, but that seems co-incidental to the behaviour.
    

SETUP
1. The attached "My-Spec-Tutorial-BenComan.1.mcz" (i.e. Bahman's
      

tutorial) was loaded into build #30564.
    

2. A breakpoint was inserted after the first "e generateArguments" in...
SpecRowLayout>>privateAsArray
  | result shouldCheckSplitters |
  result := OrderedCollection new.
  shouldCheckSplitters := false.         (self commands reject: [:e | e
      

isSplitter ]) do: [:e |
    

  ...lots..hidden.for..conciseness....
      e generateArguments.
      self haltOnce. "<------------------"
      e asSpecElements do: [:el |
          result add: el ]].

3. The following was evaluated...
  Halt enableHaltOnce.
  MyFirstWindow new openWithSpec: #defaultSpec.


OBSERVATION
1. When the debugger opened at the breakpoint
e = a SpecLayoutAdd

2. But after stepping over #asSpecElements
e = an OrderedCollection()

So how did the value of 'e' change?

Where...
SpecLayoutAdd(SpecLayoutSend)>>asSpecElements
  ^ {self selector.}, self arguments

SpecLayoutAdd(SpecLayoutSend)>>selector
  ^ selector

SpecLayoutAdd(SpecLayoutSend)>>arguments
  ^ arguments


This was on Windows 7.  Since files.pharo.org is offline, I wasn't able
      

to try a newer VM. My current was...
    

NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.18 uuid:
      

a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013
    

NBCogit NativeBoost-CogPlugin-EstebanLorenzano.18 uuid:
      

a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013
    

git://gitorious.org/cogvm/blessed.git Commit:
      

412abef33cbed05cf1d75329e451d71c0c6aa5a7 Date: 2013-03-13 17:48:50 +0100
By: Esteban Lorenzano <estebanlm@gmail.com> Jenkins build #14535
    

Win32 built on Mar 13 2013 18:49:42 Compiler: 4.6.2
VMMaker versionString git://gitorious.org/cogvm/blessed.git Commit:
      

412abef33cbed05cf1d75329e451d71c0c6aa5a7 Date: 2013-03-13 17:48:50 +0100
By: Esteban Lorenzano <estebanlm@gmail.com> Jenkins build #14535
    

NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.18 uuid:
      

a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013
    

NBCogit NativeBoost-CogPlugin-EstebanLorenzano.18 uuid:
      

a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013
    

cheers -ben

<My-Spec-Tutorial-BenComan.1.mcz>