Hello,
I'm trying to make .DollarNames generic and implement a method for it in
a package. .DollarNames is the function that is now called to get
completion possibilities.
My R code looks like this:
setGeneric( ".DollarNames" )
setClass("track",
representation(x="numeric", y="numeric"))
## A class extending the previous, adding one more slot
setClass("trackCurve",
representation(smooth = "numeric"),
contains = "track")
setMethod( ".DollarNames", signature( x = "track", pattern = "character"
), function(x, pattern){
grep( pattern, c("foo", "bar"), value = TRUE )
} )
and the NAMESPACE :
import( utils )
exportMethods( .DollarNames )
exportClasses( track, trackCurve )
When I load the package, I can call .DollarNames explicitely :
> require( foo )
> x <- new( "trackCurve", x = 1:10, y = 1:10, smooth = 1:10 )
> .DollarNames( x, "f" )
[1] "foo"
but completion does not work :