It's the result of fixing a previous bug ( that Martin Maechler
uncovered). Suppose that "A" was on another package. Then the result
of as(new("B"), "A") had the wrong package in its class.
The construction of the as() method stored in the "contains" slot of
class "B" will generate an object fro
These lines of code
setClass("A", representation(x="numeric"))
setMethod(initialize, "A", function(.Object, ...) stop("oops"))
setClass("B", representation("A"))
result in
> setClass("B", representation("A"))
Error in initialize(value, ...) : oops
in
R version 2.9.0 alpha (2009-03-28 r48239)
R
