library("R.methodsS3") message("TESTING: setGenericS3()...") myCat.matrix <- function(..., sep=", ") { cat("A matrix:\n") cat(..., sep=sep) cat("\n") } myCat.default <- function(..., sep=", ") { cat(..., sep=sep) cat("\n") } setGenericS3("myCat") myCat(1:10) mat <- matrix(1:10, ncol=5) myCat(mat) setGenericS3("foo", validators=list(R.methodsS3:::rccValidateSetGenericS3)) setGenericS3("foo<-") bar.default <- function(...) cat("bar.default\n") bar <- function(...) cat("bar\n") res <- tryCatch(setGenericS3("bar"), error = identity) stopifnot(inherits(res, "error")) print(getGenericS3("print")) # Your definition will redefine bar() above to bar.default(). foobar <- function() print("foobar()") setGenericS3("foobar") # Cleanup rm(list=ls()) message("TESTING: setGenericS3()...DONE")
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