This makes sense, no?
| dictionary |
dictionary := WeakValueDictionary with: 'hello' -> nil copy.
"Smalltalk garbageCollect."
r:={
dictionary values includes: nil.
dictionary at: 'hello'.
dictionary at: 'hello' ifAbsent: [ 'absent' ].
dictionary at: 'hello' ifAbsentPut: [ 'put' ].
}.
r
and I get this anyway when GCing and puttting #x as value
[image: Inline image 1]
Maybe checking for emptiness first is needed before going for values
include:
Phil
On Mon, Feb 20, 2017 at 11:18 PM, Martin Dias <tinchod...@gmail.com> wrote:
> Hi. The answer of:
>
> | dictionary |
> dictionary := WeakValueDictionary with: 'hello' -> 'world' copy.
> Smalltalk garbageCollect.
> {
> dictionary values includes: nil.
> dictionary at: 'hello'.
> dictionary at: 'hello' ifAbsent: [ 'absent' ].
> dictionary at: 'hello' ifAbsentPut: [ 'put' ].
> }
>
> is:
>
> #(true nil nil nil)
>
>
> Bug or feature? shouldn't the value be considered as absent instead of
> present (and nil).
>
> cheers,
> MartÃn
>
