CRAN packages filehash, hash, timeSeries and trip

[Prof Brian Ripley]

John Chambers added the following in r50609 in R-devel:

     o	The R grammar prevents using the argument "name" in signatures
         of methods for "$" and "$<-".  The generic functions have been
         changed to reflect this.

(He means the implicit S4 generics: the actual functions are 
unchanged.)

It has had to be temporarily reverted, but will be restored soon. 
This means that packages that define methods for $ or $<- with 'name' 
in the signature (which was pointless as it is always class 
"character") need to be corrected: these were sp, rgdal and those 
listed in the subject.

For setMethod("$" ...) all you have ever needed was signature 
"myclass".  In principle for setReplaceMethod("$" ...) you could give 
a signature of the form signature(x="myclass", value="someclass") but 
as implemented that does not work: only the class of 'x' is used in 
dispatching.  So in both cases the signature should simply be the 
class of x.

Can we please have updates that do this.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595