Feature Request: Impl AsPrimitive for NonZero

[foolishell]

Background

I use async-graphql which depends on this crate on validation.
https://github.com/async-graphql/async-graphql/blob/master/src/validators/minimum.rs

I want to use NonZero Integers as well as normal integers.

Feature Request

impl AsPrimitive for NonZero integers

[cuviper]

I use async-graphql which depends on this crate on validation.
https://github.com/async-graphql/async-graphql/blob/master/src/validators/minimum.rs

Given that AsPrimitive is lossy, I think it's quite dangerous to use for validation, even aside from NonZero. For example, minimum(&-1, 032) will return Ok!

[cuviper]

Use-case aside -- we aren't currently implementing this for any non-primitive types, as I mentioned in #334 (comment). That's not necessarily a show-stopper, since the trait docs do mention newtypes too, but it would be an expansion from what we have now.

[foolishell]

Thank you for telling me!
I'll close this issue.