ptype2 howto shouldn't advise `stop_incompatible_type()`

[lionel-]

In https://vctrs.r-lib.org/reference/howto-faq-coercion.html

Should recommend vec_default_ptype2() instead.

[DavisVaughan]

Does this include stop_incompatible_cast()? Because I feel like being able to call that with custom details is pretty useful https://github.com/DavisVaughan/int64/blob/0922226847a3eec5e4b5887490c8c82b8751a0e5/R/cast.R#L36-L41

[lionel-]

yes I think so. The default method is where we implement all the special behaviour. Maybe we could pass details to stop_incompatible_cast()?

[DavisVaughan]

Why do I want the special behavior though? I'm confident that I want a cast/type error and was trying to directly throw a vctrs compatible one

Calling vec_default_cast() seems less readable because it seems to imply that there is a way that that cast could actually work

[lionel-]

yes it can indeed actually work if someone overrides the method. For this to work, coercion methods should return the result of the default method instead of failing.

[DavisVaughan]

For future us:

someone overrides the method

is referring to utilizing a restart, like https://github.com/r-lib/vctrs/pull/1719