David and Subbu,
Thank you for your explanations, but ... but we have characters in the image. Having a characters in the image means that Character has instances. If alInstances method cannot report about them, it shall fire exception perhaps, or, name allInstances must be changed to something else, isn't it?
regards,
Vaidotas



On Sat, Feb 29, 2020 at 10:33 AM K K Subbu <kksubbu.ml@gmail.com> wrote:
On 29/02/20 12:26 AM, Vaidotas Didžbalis wrote:
> Hello,
> Character allInstances size=0. Why?

Good observation!

allInstances gives a list of objects of the given class stored in Object
Memory. Character and SmallInteger are immediate values (type 7), stored
directly in an oop, so they have no instances in Object Memory. You get
other such types with:

Class allSubInstances select: [:c | c instSpec = 7]
   an OrderedCollection(SmallInteger SmallFloat64 Character)

See the comment of Behavior>>instSpec for other instance types.

HTH .. Subbu
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