Hello,
Can we use instance variables in CStruct?
The following snippet is working as expected:
> CStruct subclass: Sequence [
> <declaration: #( (#maximum #uLong)
> (#length #uLong)
> (#buffer (#ptr #CObject))
> (#release #uChar) )>
>
> | arrayType |
>
> arrayType [
> ^arrayType
> ]
>
> arrayType: aType [
> arrayType := aType
> ]
> ]
>
> Eval [
> |s|
> s := Sequence new.
> s arrayType: CBoolean.
> s arrayType inspect.
> ]
But embedding this CStruct with instance variable into another CStruct
does *not* work:
> CStruct subclass: EmbeddedSequence [
> <declaration: #( (#days #uShort)
> (#intervals #{Sequence}) )>
> ]
>
> Eval [
> |eq|
> eq := EmbeddedSequence new.
> eq intervals arrayType: CBoolean.
> eq intervals arrayType inspect.
> ]
because we get an UndefinedObject for arrayType. Somehow it seems the
instance variable arrayType cannot be reached.
I would expect either gst to reject the former snippet if instance
variable in CStruct is not allowed, or to correctly return what was
sent in the second snippet. Am I missing something?
Thanks,
Regards,
Thomas
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