#376 Implemented TryFrom<&str> for ObjectId

[clarkmcc]

Fixes #376 and allows for things like this

fn handle<T>(key: T) where T: TryInto<ObjectId> {
    let id = key.try_into();
}

handle("000000000000000000000000");
handle(ObjectId::new());

[abr-egn]

Hi! Thanks for the contribution - I've authorized an evergreen run, and assuming that passes (modulo known-flaky tests) this'll be good to merge 🙂

As a side note, I don't think I've seen an API accept a TryFrom impl as a parameter, that seems a little unusual, and also might run into issues with the error type.

[clarkmcc]

As a side note, I don't think I've seen an API accept a TryFrom impl as a parameter, that seems a little unusual, and also might run into issues with the error type.

@abr-egn if this is unusual, then I'm probably going about this in the wrong way. What I'd like to be able to do is create functions that accept both strings or ObjectIds and do the necessary conversions under-the-hood. Is there a better way to accomplish this?

[abr-egn]

It looks like there's an unused import in the test code - fix that and this'll be good to merge!

What I'd like to be able to do is create functions that accept both strings or ObjectIds and do the necessary conversions under-the-hood. Is there a better way to accomplish this?

Using TryFrom is definitely the right way to do that specific thing - what I typically see is a more distinct separation of input parsing from other logic.

[abr-egn]

It looks like it's still failing the lint check - please make sure to use rustfmt to format the files.

[clarkmcc]

Sorry for the delay. Per your advice, I've found probably a more idiomatic way to handle this problem. If you'd like to close this without merging, that is no problem with me.

[abr-egn]

No worries! Glad you found a way forward.