Ah. The comment already states it:


"A VM parameter is typically numeric or boolean, and if not implemented will be nil."


So we *do need* to handle nil values here. :-)


Besides, IMHO your proposal (Tim) comes with the drawback of duplicating the primitive. See System-ct.1269. :-)


Best,

Christoph


________________________________
Von: Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org> im Auftrag von tim Rowledge <tim at rowledge.org>
Gesendet: Freitag, 17. Dezember 2021 00:48:11
An: The general-purpose Squeak developers list
Betreff: Re: [squeak-dev] Regression | Cannot interrupt "[ [] repeat ] fork" anymore

vmParameterAt: parameterIndex ifAbsent: absentBlock

        <primitive: 254>
        ^absentBlock value

tim
--
tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
Strange OpCodes: AII: Add Insult to Injury



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