Dear all,
thank your for this discussion - I had been wondering how to get the completion
with my S4 class, but it didn't bother me enough to dig into things.
The workaround/hack that *does* work now, I believe, is to insert a
dummy S3 class into the mix and define the S3 .DollarNames method
Claudia,
Your S3 methods will be selected for objects from hyperSpec, but not
for S4 classes that inherit from that class (that have
contains=hyperSpec in their definition).
The S3 method dispatch has been fixed to recognize S4 classes that
inherit from an S3 class, foo3 in my example.
John,
Thank your for the explanation!
Claudia
--
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste
phone: +39 0 40 5 58-37 68
email: cbelei...@units.it
__
Hello,
I'm trying to make .DollarNames generic and implement a method for it in
a package. .DollarNames is the function that is now called to get
completion possibilities.
My R code looks like this:
setGeneric( .DollarNames )
setClass(track,
representation(x=numeric, y=numeric))
This seems to do the trick, but it does not feel right:
.onLoad - function( libname, pkgname ){
utils - asNamespace( utils )
unlockBinding( .DollarNames, utils )
assignInNamespace( .DollarNames, .DollarNames, utils )
lockBinding( .DollarNames, utils )
}
Any
On Sat, May 29, 2010 at 4:21 AM, Romain Francois
rom...@r-enthusiasts.com wrote:
Hello,
I'm trying to make .DollarNames generic and implement a method for it in a
package. .DollarNames is the function that is now called to get completion
possibilities.
My R code looks like this:
Le 29/05/10 20:23, Deepayan Sarkar a écrit :
On Sat, May 29, 2010 at 4:21 AM, Romain Francois
rom...@r-enthusiasts.com wrote:
Hello,
I'm trying to make .DollarNames generic and implement a method for it in a
package. .DollarNames is the function that is now called to get completion
The idea of modifying .DollarNames to recognize S4 methods is OK, but
the problem could arise again.
It would be better to have a general solution. The general problem as
it seems is that an S3 generic called from within its package's
namespace (or from some other 3rd package) will not detect
Thanks. I'll apply the nice workaround for now.
Romain
Le 29/05/10 23:15, John Chambers a écrit :
The idea of modifying .DollarNames to recognize S4 methods is OK, but
the problem could arise again.
It would be better to have a general solution. The general problem as
it seems is that an S3
