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S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 19
3
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
Thanks for looking into it, your approach sounds good to me. See also
R_has_methods_attached()
(https://github.com/wch/r-source/blob/42ecf5f492a005f5398cbb4c9becd4aa5af9d05c/src/main/objects.c#L258-L265).
I'm fine with Rscript not loading "methods", as long as everything works
properly with "methods" loaded but not attached.
-Kirill
On 19.04.2016 04:10, Michael Lawrence wrote:
> Right, the methods package is not attached by default when running R
> with Rsc...
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 19
2
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
..., Kirill M?ller
> <kirill.mueller at ivt.baug.ethz.ch> 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/42ecf5f492a005f5398cbb4c9becd4aa5af9d05c/src/main/objects.c#L258-L265
> ).
> >
> > I'm fine with Rscript not loading "methods", as long as everything works
> > properly with "methods" loaded but not attached.
> >
> >
> > -Kirill
> >
> >
> >
> > On 19.04.2016 04:10, Michael Law...
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 19
4
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
....baug.ethz.ch> 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/42ecf5f492a005f5398cbb4c9becd4aa5af9d05c/src/main/objects.c#L258-L265
> ).
> >> >
> >> > I'm fine with Rscript not loading "methods", as long as everything
> works
> >> > properly with "methods" loaded but not attached.
> >> >
> >> >
> >> > -Kirill
> >>...
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 19
0
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
..., Apr 18, 2016 at 11:50 PM, Kirill M?ller
<kirill.mueller at ivt.baug.ethz.ch> 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/42ecf5f492a005f5398cbb4c9becd4aa5af9d05c/src/main/objects.c#L258-L265).
>
> I'm fine with Rscript not loading "methods", as long as everything works
> properly with "methods" loaded but not attached.
>
>
> -Kirill
>
>
>
> On 19.04.2016 04:10, Michael Lawrence wrote:
>>
>> Right, the methods packag...
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 19
0
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
...<kirill.mueller at ivt.baug.ethz.ch> 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/42ecf5f492a005f5398cbb4c9becd4aa5af9d05c/src/main/objects.c#L258-L265).
>> >
>> > I'm fine with Rscript not loading "methods", as long as everything works
>> > properly with "methods" loaded but not attached.
>> >
>> >
>> > -Kirill
>> >
>> >
>> >
>> >...
2015 Aug 27
2
Re: [PATCH v2 02/17] v2v: factor out opening input VM
On Tue, Aug 11, 2015 at 08:00:21PM +0300, Roman Kagan wrote:
> Opening the source VM and amending the properties in its internal
> representation in accordance with command-line options fit nicely into
> two isolated functions.
Better to write this as:
let rec main () =
...
and open_source ... =
...
and amend_source ... =
...
and inspect_source ... =
...
so
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 19
0
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
...ote:
>> >> > Thanks for looking into it, your approach sounds good to me. See also
>> >> > R_has_methods_attached()
>> >> >
>> >> > (
>> https://github.com/wch/r-source/blob/42ecf5f492a005f5398cbb4c9becd4aa5af9d05c/src/main/objects.c#L258-L265
>> ).
>> >> >
>> >> > I'm fine with Rscript not loading "methods", as long as everything
>> works
>> >> > properly with "methods" loaded but not attached.
>> >> >
>> >> >
>> >...
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
2016 Apr 18
3
S3 dispatch for S4 subclasses only works if variable "extends" is accessible from global environment
Scenario: An S3 method is declared for an S4 base class but called for
an instance of a derived class.
Steps to reproduce:
> Rscript -e "test <- function(x) UseMethod('test', x); test.Matrix <-
function(x) 'Hi'; MatrixDispatchTest::test(Matrix::Matrix())"
Error in UseMethod("test", x) :
no applicable method for 'test' applied to an