Not sure why R_has_methods_attached() exists. Maybe Martin could shed
some light on that.
On Mon, Apr 18, 2016 at 11:50 PM, Kirill Müller
wrote:
> Thanks for looking into it, your approach sounds good to me. See also
> R_has_methods_attached()
> (https://github.com/wch/r-source/blob/42ecf5f492a00
See also .isMethodsDispatchOn, which is what trace uses to decide if the
methods package needs to be loaded.
~G
On Tue, Apr 19, 2016 at 5:34 AM, Michael Lawrence wrote:
> Not sure why R_has_methods_attached() exists. Maybe Martin could shed
> some light on that.
>
> On Mon, Apr 18, 2016 at 11:5
Right, R_has_methods_attached() uses that. Probably not the right
check, since it refers to S4 dispatch, while S4_extends() is used by
S3 dispatch.
Perhaps S4_extends() should force load the methods package? The above
example works after fixing the check to ensure that R_MethodsNamespace
is not R_
Does it make sense to be able to load an S4 object without the methods
package being attached? I'm not sure implementation-wise how easy this
would be, but it seems like any time there is an S4 object around, the
methods package should be available to deal with it.
~G
On Tue, Apr 19, 2016 at 7:34
This might be too big a change - but is it worth reconsidering the
behaviour of Rscript? Maybe the simplest fix would be simply to always
load the methods package. (I think historically it didn't because
loading methods took a long time, but that is no longer true)
Hadley
On Tue, Apr 19, 2016 at
On Tue, Apr 19, 2016 at 9:21 AM, Hadley Wickham wrote:
>
> This might be too big a change - but is it worth reconsidering the
> behaviour of Rscript? Maybe the simplest fix would be simply to always
> load the methods package. (I think historically it didn't because
> loading methods took a long
On 19 April 2016 at 11:21, Hadley Wickham wrote:
| This might be too big a change - but is it worth reconsidering the
| behaviour of Rscript? Maybe the simplest fix would be simply to always
| load the methods package. (I think historically it didn't because
| loading methods took a long time, bu
Agreed about Rscript being consistent R.
For now, I'll modify S4_extends() so that it leads to S4 dispatch when
dispatch is turned on (not just when methods is attached).
On Tue, Apr 19, 2016 at 8:37 AM, Gabriel Becker wrote:
> Does it make sense to be able to load an S4 object without the metho
Hello dear dev team,
In the recent devel R-exts manual I cannot find any information about new
option `--ignore-vignettes` to `R CMD check`. I would expect it to be
mentioned somewhere in "1.4.2 Non-Sweave vignettes".
Checked on https://cran.r-project.org/doc/manuals/r-devel/R-exts.html and
https
