
vec_rbind() fails with complex foreign S3 classes
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> x <- structure(foobar(1), attr_foo = "foo")
> y <- structure(foobar(2), attr_bar = "bar")
> vec_rbind(set_names(x, "x"), set_names(y, "x"))
Error: Can't combine `..1` <vctrs_foobar> and `..2` <vctrs_foobar>.
x Some attributes are incompatible.
i The author of the class should implement vctrs methods.
i See <https://vctrs.r-lib.org/reference/faq-error-incompatible-attributes.html>.


vec_rbind() fails with complex foreign S4 classes
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> joe <- .Counts(1L, name = "Joe")
> jane <- .Counts(2L, name = "Jane")
> vec_rbind(set_names(joe, "x"), set_names(jane, "x"))
Error: Can't combine `..1` <vctrs_Counts> and `..2` <vctrs_Counts>.
x Some attributes are incompatible.
i The author of the class should implement vctrs methods.
i See <https://vctrs.r-lib.org/reference/faq-error-incompatible-attributes.html>.

