Hi Michael, thanks again for your patch! I've tested it and I'm happy to confirm that `callNextMethod()` works with methods dispatching on `...`.
However, the second issue I reported still seems to be unresolved. Consider the following toy example, where the `f()` calls differ in result depending on whether the dispatch happens on a formal argument or the `...` argument. f = function(x, ..., a = b) { b = "missing 'a'" print(a) } f() ## [1] missing 'a' f(a = 1) ## [1] 1 setGeneric("f", signature = "x") # works as the non-generic version f() ## [1] missing 'a' setGeneric("f", signature = "...") # unexpectedly fails to find 'b' f() ## Error in print(a) : object 'b' not found Any chances of fixing this? Cheers, Andrzej On Fri, Apr 21, 2017 at 11:40 AM, Andrzej Oleś <andrzej.o...@gmail.com> wrote: > Great, thanks Michael for you quick response! > > I started off with a question on SO because I was not sure whether this > was an actual bug or I was just missing something obvious. I'm looking > forward to the patch. > > Cheers, > Andrzej > > > On Thu, Apr 20, 2017 at 10:28 PM, Michael Lawrence < > lawrence.mich...@gene.com> wrote: > >> Thanks for pointing out these issues. I have a fix that I will commit >> soon. >> >> Btw, I would never have seen the post on Stack Overflow. It's best to >> report bugs on the bugzilla. >> >> Michael >> >> On Thu, Apr 20, 2017 at 8:30 AM, Andrzej Oleś <andrzej.o...@gmail.com> >> wrote: >> > Hi all, >> > >> > I recently encountered some unexpected behavior with S4 generics >> > dispatching on `...`, which I described in >> > http://stackoverflow.com/questions/43499203/use-callnextmeth >> od-with-dotsmethods >> > >> > TL;DR: `callNextMethod()` doesn't work in methods dispatching on `...`, >> and >> > arguments of such methods are resolved differently than the arguments of >> > methods dispatching on formal arguments. >> > >> > Could this indicate a potential problem with the implementation of the >> > `...` dispatch? >> > >> > Cheers, >> > Andrzej >> > >> > [[alternative HTML version deleted]] >> > >> > ______________________________________________ >> > R-devel@r-project.org mailing list >> > https://stat.ethz.ch/mailman/listinfo/r-devel >> > > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel