>>>>> William Dunlap via R-devel
>>>>> on Thu, 16 May 2019 11:56:45 -0700 writes:
> In R-3.6.0 autoprinting was changed so that print methods for the storage
> modes are not called when there is no explicit class attribute. E.g.,
> % R-3.6.0 --vanilla --quiet
>> print.function <- function(x, ...) { cat("Function with argument list ");
> cat(sep="\n ", head(deparse(args(x)), -1)); invisible(x) }
>> f <- function(x, ...) { sum( x * seq_along(x) ) }
>> f
> function(x, ...) { sum( x * seq_along(x) ) }
>> print(f)
> Function with argument list function (x, ...)
> Previous to R-3.6.0 autoprinting did call such methods
> % R-3.5.3 --vanilla --quiet
>> print.function <- function(x, ...) { cat("Function with argument list ");
> cat(sep="\n ", head(deparse(args(x)), -1)); invisible(x) }
>> f <- function(x, ...) { sum( x * seq_along(x) ) }
>> f
> Function with argument list function (x, ...)
>> print(f)
> Function with argument list function (x, ...)
> Was this intentional?
No, it was not. ... and I've been the one committing the wrong change.
... Related to the NEWS entries which start
"Changes in print.*() ...."
Thank you Bill, for reporting....
It's amazing this has not been detected earlier by anybody.
I think it is *only* for functions, not general
print.<storagemode>() as you were suggesting - right?
Martin
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