Derive Macro FromStr

#[derive(FromStr)]

This macros provides the implementation of the trait FromStr (writed for crate add_macro)

Examples:

use add_macro_impl_fromstr::FromStr;
 
#[derive(Debug)]
enum Error {
    ParseError,
}
 
#[derive(FromStr)]
struct Email {
    name: String,
    host: String
}
 
impl Email {
    // WARNING: this method needs for working the implementation trait FromStr
    pub fn parse(s: &str) -> Result<Self, Error> {
        let spl = s.trim().splitn(2, "@").collect::<Vec<_>>();
         
        if spl.len() == 2 {
            Ok(Self {
                name: spl[0].to_owned(),
                host: spl[1].to_owned(),
            })
        } else {
            Err(Error::ParseError)
        }
    }
}
 
fn main() -> Result<(), Error> {
    let _bob_email: Email = "bob@example.loc".parse()?;
 
    Ok(())
}