Method select

crates/client-api/src/util/websocket.rs:40–51

(&self, protocols: impl IntoIterator<Item = (S, P)>)

    }

    pub fn select<S, P>(&self, protocols: impl IntoIterator<Item = (S, P)>) -> Option<(ResponseSecWebsocketProtocol, P)>
    where
        S: for<'a> PartialEq<&'a str> + TryInto<HeaderValue>,
    {
        protocols
            .into_iter()
            .find(|(protoname, _)| self.iter().any(|x| *protoname == x))
            .map(|(protoname, proto)| {
                let proto_header = protoname.try_into().unwrap_or_else(|_| unreachable!());
                (ResponseSecWebsocketProtocol(proto_header), proto)
            })
    }
}

pub struct ResponseSecWebsocketProtocol(pub HeaderValue);