Closed
Description
I spent {way too much} time on this yesterday:
extern crate clap;
fn main() {
let v = "0.1".to_string();
let app = clap::App::new("hello world").version(v);
}this code fails to build with
error[E0277]: the trait bound `&str: std::convert::From<std::string::String>` is not satisfied
--> src/main.rs:4:45
|
4 | let app = clap::App::new("hello world").version(v);
| ^^^^^^^ the trait `std::convert::From<std::string::String>` is not implemented for `&str`
|
= note: required because of the requirements on the impl of `std::convert::Into<&str>` for `std::string::String`
error: aborting due to previous error
passing v by reference doesn't help either ( .version(&v), the msg is almost identical then).
What fixed this for me in the end was .version(&*v).
Is there a way we could suggest to the user to use &* in this example?
the version method signature can be found here
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