On Tue, Feb 28, 2017 at 11:28 AM, Offray Vladimir Luna C��rdenas <offray.luna@mutabit.com> wrote:

Hi,

I would like to store the object resulting from executing a playground. This would imply two steps:

- Knowing that the playground content was executed (via the play button or its shortcuts Ctrl + Shift + g or Ctrl + g).
- Getting the results of that execution. For example if the result at the end is a string or a dictionary, I would like to get that string or dictionary.

Any pointers on how to make that will be welcomed.

Cheers,

Offray

Ps: I still get lost when I search by myself trying to answer questions like the ones above. I imagine that in some way is related with evaluationAction and presentations, by looking for the source code of "do it and go", but still I can't get a functional code snippet to start prototyping.

In playground, if you evaluate "self halt. 42" at top of the debug stack you'll see method...

�� Undefined>>DoIt ��

�� self halt.

�� ^ 42

where stepping��

OVER returns 42 into "value" variable in OpalCompiler>>evaluate

OVER returns 42 into "result" variable in RubSmalltalkEditor>>evaluate:andDo:

at the end of which stepping��

INTO "^aBlock value: result" ��takes you to RubSmalltalkEditor>>highlightEvaluateAndDo:, where

INTO "[:result | aBlock value: result]" �� takes you to GLMPharoScriptPResentation(GLMRubricSmalltalkCodePresentation)>>executionSelectionActions

where changing "aPresentation highlightEvaluateAndDo: [ :result | ] ];��

�� to "aPresentation highlightEvaluateAndDo: [ :result | self inform: 'Result ' , result printString] ]; "

�� and opening a new Playground, then evaluating "42" informs us that 42 is the result.

Stepping further along, in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodePresentation)>>highlightEvaluateAndDo::��

the value returned from...

�� self��

�� evaluate: self highlightedTextAsStream

�� andDo: [:result | aBlock value: result. ].

is not 42 but aGLMPharoScriptPresentation. ��it might help to change that to...��

�� andDo: [:result | aBlock value: result. ��result ].

but anyway that return value is thrown away in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodePresentation)>>actOnHighlightAndEvaluate:

So subclassing GLMRubricSmalltalkCodePresentation and overriding #executionSelectionActions

is perhaps your best bet.�� Or some GLM expert provides a nice way for a user to set this customAssignmentBlock...

�� aPresentation highlightEvaluateAndDo: [ :result | customAssignmentBlock value: result ].��

in #executionSelectionActions.

cheers -ben