Custom names_repair_arg

[hadley]

For tidyverse/tidyr#774

[hadley]

Is the hint no longer produced by vctrs? I'd think to see it in validate_unique() but stop_error() and subclasses don't seem to generate it.

Is this actually made by tibble?

[hadley]

Maybe vec_as_names() should have a repair_name argument that is passed down to validate_unique(), and then to stop_names_cannot_be_empty(), stop_names_cannot_be_dot_dot() and stop_names_must_be_unique(). If non "" (non NULL?) this would add an info bullet to the condition.

@lionel- if that sounds like basically the right approach, I'm happy to implement it.

[lionel-]

It'd pass down repair_arg as well? This sounds like the right approach!

[hadley]

Sorry, yeah, I meant repair_arg. I'll take a stab