[squeak-dev] The Trunk: ToolBuilder-Morphic-tpr.196.mcz

Marcel Taeumel marcel.taeumel at hpi.de
Thu Oct 5 06:16:14 UTC 2017

Note I would rather rename #morphicOpenWith: to #openAsTool or similar because (1) to not confuse with the rather old pattern "morphicOpen..." and "mvcOpen..." and (2) it already is in the scope of Morphic. No need to encode this in the selector, too.

Am 05.10.2017 08:11:58 schrieb Marcel Taeumel <marcel.taeumel at hpi.de>:
Well, since Tobias started this refactoring in April 2017 to clear-up MorphicToolBuilder >> #open, this seems a logical next step to also have a #buildWith: in Morph.

Just my two cents. :)

Am 05.10.2017 04:40:46 schrieb Chris Muller <asqueaker at gmail.com>:
#buildWith: is a method for just ToolBuilders. The clarity of the
decision of whether to build or not was articulated by the code of the
class responsible for it. A dispatch seems unnecessary here. In
fact, introducing Morph>>#buildWith: adds yet another muddle-method to
its already-large API, and now inherited by the entire hierarchy.
Will it invite people to start overriding it in subclasses as an
alternative way to use ToolBuilder? Maybe. I think they'll at least
be confused about why it's in Morph.

IMO, this is one of those times when a type check was the simplest and
best way to go.

On Mon, Oct 2, 2017 at 7:09 PM, wrote:
> tim Rowledge uploaded a new version of ToolBuilder-Morphic to project The Trunk:
> http://source.squeak.org/trunk/ToolBuilder-Morphic-tpr.196.mcz
> ==================== Summary ====================
> Name: ToolBuilder-Morphic-tpr.196
> Author: tpr
> Time: 2 October 2017, 5:09:16.231117 pm
> UUID: 7036c368-757d-4824-ac4a-52ac133665f3
> Ancestors: ToolBuilder-Morphic-nice.195
> Rather than testing an argument for morphnicity, how about jaust making a morph do the right thing (ie nothing)?
> Not entirely clear that the 'problem' can ever really arise, but I can't see any way to prove either case.
> =============== Diff against ToolBuilder-Morphic-nice.195 ===============
> Item was added:
> + ----- Method: Morph>>buildWith: (in category '*ToolBuilder-Morphic-opening') -----
> + buildWith: aToolBuilder
> + "A Morph is already built, so simply return myself"
> + ^self!
> Item was changed:
> ----- Method: MorphicToolBuilder>>open: (in category 'opening') -----
> open: anObject
> "Build and open the object. Answer the widget opened."
> +
> + ^ (self build: anObject) morphicOpenWith: self!
> - | morph |
> - morph := anObject isMorph ifTrue: [anObject] ifFalse: [self build: anObject].
> - ^ morph morphicOpenWith: self!

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20171005/7495ecc1/attachment.html>

More information about the Squeak-dev mailing list