I was able to track down the problem that causes R-Swig to fail in 2.6. In 2.5, I am able to use the set method against '$' and '$<-' to cause expressions like r$d to get dispatched to get and set functions. This no longer seems to work in 2.6, and I was wondering if anyone can give information as why.
The function that are failing are at the end of this e-mail. In 2.5 a function like r$d would get dispatched to A_d_get(r). but in 2.6 it returns a NULL. # Start of accessor method for A setMethod('$', '_p_A', function(x, name) { print('foo') accessorFuns = list('i' = A_i_get, 'ui' = A_ui_get, 'd' = A_d_get, 'str' = A_str_get, 'tmp' = A_tmp_get) vaccessors = c('i', 'ui', 'd', 'str', 'tmp') idx = pmatch(name, names(accessorFuns)) if(is.na(idx)) return(callNextMethod(x, name)) f = accessorFuns[[idx]] formals(f)[[1]] = x if (is.na(match(name, vaccessors))) f else f(x) } ) # end of accessor method for A # Start of accessor method for A setMethod('$<-', '_p_A', function(x, name, value) { accessorFuns = list('i' = A_i_set, 'ui' = A_ui_set, 'd' = A_d_set, 'str' = A_str_set, 'tmp' = A_tmp_set) idx = pmatch(name, names(accessorFuns)) if(is.na(idx)) return(callNextMethod(x, name, value)) f = accessorFuns[[idx]] f(x, value) x } ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.