HTTP Version type

[seanmonstar]

Similar to the reasoning in #1, I've an initial design that replaces hyper's enum with an opaque struct, allowing adding new HTTP versions in the future (HTTP2 spec says 3 could happen).

https://github.com/seanmonstar/http-rs/blob/50b7cb555ae3445d37ae20edfddb756d70fdf22d/src/version.rs

pub struct Version(Http);

impl Version {
    // .. constructors for each version
    pub fn http_11() -> Version {
        Version(Http::Http11)
    }

    // .. instance methods
    pub fn major(&self) -> u8 {
        match self.0 {
            Http09 => 0
            Http10 |
            Http11 => 1,
            H2     |
            H2c    => 2,    
        }
    }
}

enum Http {
    Http11,
    // ...version variants
}

[alexcrichton]

👍

[carllerche]

Resolved by #is 7