[squeak-dev] The Trunk: EToys-nice.292.mcz
Bob Arning
arning315 at comcast.net
Sun Oct 8 23:26:17 UTC 2017
Well, #initKnownRenamescame after my involvement, but there are several
options available here:
- #initKnownRenames can specify a class to be substitued for another
encountered in the input stream, whether the class in the stream exists
in the image or not. So, you can just create something different if you
like.
- #multiNewParagraphttfclpomsswfpp0, etc. (in SmartRefStream)) allows
specific versions (all the ttfcl... stuff) to be substituted with
something different.
- #convertToCurrentVersion:refStream: (in various classes) allows newly
created instances to get their inst vars modified to current standards,
like if 'name' used to be a String and now it's a Name, you might use
this to fix old instances that still have Strings
So, if the issue is about fixing paragraphs or projects coming in from a
ref stream, then #convertToCurrentVersion:refStream: will probably let
you do what you want.
On 10/8/17 6:17 PM, H. Hirzel wrote:
> On 10/8/17, Bob Arning <arning315 at comcast.net> wrote:
>> #convertToCurrentVersion:refStream: might be used to fix up such problems
> Seems to be the regular way to do this whereas
>
> SmartRefStream>>initKnownRenames
>
> looks more like a hack. However it is not etoys specific as it is
> present in Squeak 5.0 (screen shot)
>
>
> #initKnownRenames is called in
>
>
> SmartRefStream>>initShapeDicts
>
>
> It has a flag #bobconv
>
> Looks like unfinished business. Bob, what would you see as the way forward?
>
> initShapeDicts
> "Initialize me. "
>
> self flag: #bobconv.
>
> "These must stay constant. When structures read in, then things can change."
> steady := {Array. Dictionary. Association. ByteString. SmallInteger.
> Character} asSet.
>
> renamed ifNil: [
> renamed := Dictionary new. "(old class name symbol -> new class name)"
> renamedConv := Dictionary new "(oldClassNameSymbol ->
> conversionSelectorInNewClass)"
> ].
> self initKnownRenames
>
>
>> On 10/8/17 5:33 PM, Tobias Pape wrote:
>>> So 'presentationText' and 'presentationLines' will shadow 'caretRect' and
>>> 'showCaret'...
>>
>>
>>
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