Auto merge of #73007 - yoshuawuyts:socketaddr-from-string-u16, r=sfackler
impl ToSocketAddrs for (String, u16) This adds a convenience impl of `ToSocketAddrs for (String, u16)`. When authoring HTTP services it's common to take command line options for `host` and `port` and parse them into `String` and `u16` respectively. Consider the following program: ```rust #[derive(Debug, StructOpt)] struct Config { host: String, port: u16, } async fn main() -> io::Result<()> { let config = Config::from_args(); let stream = TcpStream::connect((&*config.host, config.port))?; // &* is not ideal // ... } ``` Networking is a pretty common starting point for people new to Rust, and seeing `&*` in basic examples can be confusing. Even as someone that has experience with networking in Rust I tend to forget that `String` can't be passed directly there. Instead with this patch we can omit the `&*` conversion and pass `host` directly: ```rust #[derive(Debug, StructOpt)] struct Config { host: String, port: u16, } async fn main() -> io::Result<()> { let config = Config::from_args(); let stream = TcpStream::connect((config.host, config.port))?; // no more conversions! // ... } ``` I think should be an easy and small ergonomics improvement for networking. Thanks!
Showing
想要评论请 注册 或 登录