Same thing happens with S3 if you redefine print(). I thought that
code was actually calculating the function to call rather than the
symbol to use, but apparently not. Shouldn't be too hard to fix.
luke
On Tue, 30 Jun 2015, Hadley Wickham wrote:
On Tue, Jun 30, 2015 at 2:20 PM, Duncan Murdoch
<murdoch.dun...@gmail.com> wrote:
On 30/06/2015 1:57 PM, Hadley Wickham wrote:
A slightly simpler formulation of the problem is:
show <- function(...) stop("My show!")
methods::setClass("Person", slots = list(name = "character"))
methods::new("Person", name = "Tom")
#> Error in (function (...) : My show!
Just to be clear: the complaint is that the auto-called show() is not
methods::show? I.e. after
x <- methods::new("Person", name = "Tom")
you would expect
show(x)
to give the error, but not
x
??
Correct - I'd expect print() to always call methods::show(), not
whatever show() is first on the search path.
Hadley
--
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
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