Apologies for the frequent issue posting.
When writing an S7 method for an operator and S3 class, we seem to bypass the method when the RHS is not also an S7 class.
In the example below, I expected foo + 10 to also return "success".
library(S7)
foo <- structure(list(), class = "foo")
class_foo <- new_S3_class("foo")
bar <- new_class("bar")
method(`+`, list(class_foo, class_any)) <- function(e1, e2) "success"
# Correct
foo + bar()
#> [1] "success"
# Can't find method?
foo + 10
#> Error in foo + 10: non-numeric argument to binary operatorThis is not the case with regular S7 generics, which behave as expected.
fun <- new_generic("fun", c("e1", "e2"))
method(fun, list(e1 = class_foo, e2 = class_any)) <- function(e1, e2) "success"
fun(foo, bar())
#> [1] "success"
fun(foo, 10)
#> [1] "success"Created on 2025-06-10 with reprex v2.1.1
Apologies for the frequent issue posting.
When writing an S7 method for an operator and S3 class, we seem to bypass the method when the RHS is not also an S7 class.
In the example below, I expected
foo + 10to also return"success".This is not the case with regular S7 generics, which behave as expected.
Created on 2025-06-10 with reprex v2.1.1