Hi, My package contains the following foo() generic and methods (simplified version):
setGeneric("foo", signature="x", function(x, y=NA) standardGeneric("foo")) setMethod("foo", "ANY", function(x, y=NA) list(x, y)) setMethod("foo", "character", function(x, y=NA) unlist(callNextMethod())) > foo(5) [[1]] [1] 5 [[2]] [1] NA > foo("a") [1] "a" NA And I want to define a temporary alias for foo() for backward compatibility with some existing code: oldfoo <- function(...) { .Deprecated("foo"); foo(...) } > oldfoo(5) [[1]] [1] 5 [[2]] [1] NA Warning message: 'oldfoo' is deprecated. Use 'foo' instead. See help("Deprecated") > oldfoo("a") Error in .nextMethod() : argument "x" is missing, with no default In addition: Warning message: 'oldfoo' is deprecated. Use 'foo' instead. See help("Deprecated") Why isn't this working? One way to make this work is to specify the arguments in the call to callNextMethod(), or in the definition of the oldfoo alias. But wouldn't that be nice to be able to just use fooalias <- function(...) foo(...) for aliasing? Thanks! H. R version 2.7.0 (2008-04-22) i686-pc-linux-gnu locale: LC_CTYPE=en_CA.UTF-8;LC_NUMERIC=C;LC_TIME=en_CA.UTF-8;LC_COLLATE=en_CA.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_CA.UTF-8;LC_PAPER=en_CA.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_CA.UTF-8;LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel