[Rd] Autocompletion for the new S3 generic @ method?

[Tomasz Kalinowski]

I agree, this is a good idea and would be very helpful in interactive contexts. 

I have a draft patch implementing this feature here: https://github.com/r-devel/r-svn/pull/122
(Append  “.patch” to the URL to get a raw patch.)

Regards,
Tomasz

> On Mar 31, 2023, at 2:11 PM, Karolis K <karolis.koncevicius using gmail.com> wrote:
> 
> Hello,
> 
> In the current R-devel @ is S3 generic, so we can do things like - for example - use it to extract matrix rows by name:
> 
>    .S3method("@", "mm", function(object, name) object[name,])
>    m <- structure(matrix(rnorm(20), ncol=2), dimnames=list(paste0("row", 1:10), paste("col", 1:2)), class="mm")
> 
>    m using row1
> 
> However, seems like currently it does not support autocompletion.
> 
> Wouldn’t it make sense to add a method like .EtaNames() which would provide tab autocompletions for x@<tab> in the same way current .DollarNames() does for x$<tab>?
> 
> Regards,
> Karolis K.
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