[Roxygen-devel] setReplaceMethod problems

[Manuel J. A. Eugster]

Thank you for the patch, Bart! It will be added to R-Forge soon,
and then will in the next CRAN release! Best, Manuel.



On 7/22/10 11:42 AM, Janssen, B.J. wrote:
> Hello,
>
> I am writing a package in R using S4 classes and had problems with
> roxygen when I tried to include a setReplaceMethod for one of my
> classes.  Roxygen 0.1-2 revision 245 crashed whenever a
> setReplaceMethod declaration was encountered. Searching the net got
> me
> to<https://r-forge.r-project.org/tracker/index.php?func=detail&aid=842&group_id=183&atid=1500>
> which confirms it is not (yet) supported by roxygen.
>
> Installing the latest revision from svn (248) solved the crashing
> problem for me. It still produced a warning because
> "setReplaceMethod" was not recognized. This can be resolved by the
> patch included below. It just applies the same method as setMethod
> does to any setReplaceMethod encountered. The disadvantage is that it
> cannot handle duplicate naming. For example, it overwrites "[.Rd" if
> both  a setMethod and a setReplaceMethod are declared for "[". These
> filenames should get renamed to something more sensible…
>
> Regards, Bart
>
>> svn diff Rd2.R
> Index: Rd2.R
> ===================================================================
> --- Rd2.R	(revision 248) +++ Rd2.R	(working copy) @@ -55,6 +55,14 @@
> formals=S4formals$definition) })
>
> +register.srcref.parser('setReplaceMethod', +
> function(pivot, expression) { +                         S4formals<-
> parseS4.method(cdr(expression)) +
> list(S4method=car(expression), +
> S4formals=S4formals, +
> formals=S4formals$definition) +                       }) + #' New
> implementation of the Rd roclet; same functionality as the original
> #' implementation plus basic S4 handling. #'
>
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