Object Browser display issue for a certain object about nvim-r HOT 12 CLOSED

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There is no attachment. You have to send it directly to my e-mail (jalvesaq at gmail.com), not as a reply to a Github comment.

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The issue was happening when the S4 object had a "label" attribute. Maybe it's fixed on the branch https://github.com/jalvesaq/Nvim-R/tree/S4label but it doesn't seem to be very stable: sometimes, the tree doesn't open...

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@jalvesaq Thanks for your response!
Unfortunately, S4label branch did not solve the problem in my environment.
One thing I noticed is that this S4 object's structure is little strange.

The output of str(promoter) is the same as in the image in the previous post.
Five of the slots (type, by, label, upstream and downstream) are somehow with the "$" prefix instead of "@", although these slots cannot be accessed by "$".

promoter$label
# NULL

promoter@label
# "TSS"

I don't know if this is related issue though.

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I forgot to increase nvimcom version number. It should (imperfectly) work now.

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Now the problem is almost solved. Thanks!

Although it's not a big problem for me, the object looks like this now.

It does not show the five slots (type, by, label, upstream, downstream), and somehow the value in the 'label' slot ('TSS') is shown next to the object name. I can still use str to view these slots.

So far I haven't had seen cases where the tree does not open.

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I don't know much about S4 objects, but nvimcom.c runs only slotNames() and not names(attributes()) to list the elements of a S4 object. The results are different:

slotNames(promoter)
names(attributes(promoter))

All slots are attributes, but not all attributes are also slots. I didn't know about this. The "label" attribute receives special treatment in Nvim-R because they are frequently used as variable labels in data.frames. So, "TSS" is shown as the label of promoter in the Object Browser. The other attributes are ignored.

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Attributes can be accessed with the @ symbol in S4, but not in S3 objects:

dtfrm <- data.frame(xxx = c(1, 2, 2), aaa = c("a", "b", "c"))
attr(dtfrm, "label") <- "The label"
dtfrm@label

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This S4 object slot configuration looks little strange to me.
I'm not very familiar with the S4 object configuration, but at least I've never seen S4 objects like this.
For this object, some of the attributes (e.g. label) are not slots, but still can be accessed by "@".

promoter@label
# "TSS"

Again, your fix is good enough for me, and I appreciate your quick response!

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I did a minor optimization a few minutes ago but I will merge the code into the master branch soon.

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Merged now. Thanks for your contribution!

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