Can't use the proc-macros with anyhow

[oren0e]

I have found this PR: #46 which was supposed to solve the issue as far as I understand, but still if I have a function that returns the anyhow::Result I get the following errors:

error[E0308]: mismatched types
  --> src/actions.rs:11:1
   |
11 | #[cached]
   | ^^^^^^^^^ expected enum `Result`, found reference

and

error[E0599]: the method `clone` exists for enum `Result<String, anyhow::Error>`, but its trait bounds were not satisfied
   --> src/actions.rs:11:1
    |
11  | #[cached]
    | ^^^^^^^^^ method cannot be called on `Result<String, anyhow::Error>` due to unsatisfied trait bounds

What can I do about it?

[James Kominick]

I’m assuming you don’t want to cache the error scenario - have you tried specifying result = true? More in the macro docs here https://docs.rs/cached/latest/cached/proc_macro/attr.cached.html

#[cached(result = true)]

[oren0e]

Ah missed that entirely, thanks, that solved the problem!

[James Kominick]

Nice! I notice that in a recent refactor the example showing how to handle results was removed from the readme. Probably wouldn't hurt to add one back!