Hi Michael, Thanks for looking into this. I suspect that truncation of ANY suffixes from method signatures is also the culprit behind the sudden breakage of aliases of the form \alias{foo,numeric-method} when a method without the ANY suffix in its signature gets added to the ecosystem. See my post about this to the Bioc-devel mailing list a couple of months ago: https://stat.ethz.ch/pipermail/bioc-devel/2019-January/014603.html
So overall isn't this truncation more trouble than it's worth? H. On 3/19/19 10:12, Michael Lawrence wrote: This is due to the intentional truncation of ANY suffixes from method signatures. I've hacked selectMethod() to be robust to that and will commit soon. Thanks for the report. Michael On Thu, Mar 14, 2019 at 9:32 AM Pages, Herve <hpa...@fredhutch.org<mailto:hpa...@fredhutch.org>> wrote: Here is an example: setGeneric("foo", function(x, y) standardGeneric("foo")) setMethod("foo", c("numeric", "ANY"), function(x, y) cat("I'm the foo#numeric#ANY method\n") ) Dispatch works as expected but selectMethod() fails to find the method: > foo(1, TRUE) I'm the foo#numeric#ANY method > selectMethod("foo", c("numeric", "logical")) Error in selectMethod("foo", c("numeric", "logical")) : no method found for signature numeric, logical Adding an arbitrary method that doesn't have ANY in the signature "fixes" selectMethod(): setMethod("foo", c("complex", "integer"), function(x, y) cat("I'm the foo#complex#integer method\n") ) Then: > selectMethod("foo", c("numeric", "logical")) Method Definition: function (x, y) cat("I'm the foo#numeric#ANY method\n") Signatures: x y target "numeric" "logical" defined "numeric" "ANY" Thanks, H. -- Hervé Pagès Program in Computational Biology Division of Public Health Sciences Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N, M1-B514 P.O. Box 19024 Seattle, WA 98109-1024 E-mail: hpa...@fredhutch.org<mailto:hpa...@fredhutch.org><mailto:hpa...@fredhutch.org<mailto:hpa...@fredhutch.org>> Phone: (206) 667-5791 Fax: (206) 667-1319 [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org<mailto:R-devel@r-project.org> mailing list https://stat.ethz.ch/mailman/listinfo/r-devel<https://urldefense.proofpoint.com/v2/url?u=https-3A__stat.ethz.ch_mailman_listinfo_r-2Ddevel&d=DwMFaQ&c=eRAMFD45gAfqt84VtBcfhQ&r=BK7q3XeAvimeWdGbWY_wJYbW0WYiZvSXAJJKaaPhzWA&m=4e2MsIBoF9YnF3BCkiOk1m2kFgKBe24FwU28c-wuAyc&s=ydXNxAwEa5eG9lTu27sx-8KsT6gU66TbmJLcaYEaleg&e=> -- Hervé Pagès Program in Computational Biology Division of Public Health Sciences Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N, M1-B514 P.O. Box 19024 Seattle, WA 98109-1024 E-mail: hpa...@fredhutch.org<mailto:hpa...@fredhutch.org> Phone: (206) 667-5791 Fax: (206) 667-1319 [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel