pub struct Request<''a> {
pub origin: &''a Request,
pub params: HashMap<String, String>,
}Its true form is
pub struct Request<'a> {
pub origin: &'a Request,
pub params: HashMap<String, String>
}
See also: http://doc.rust-lang.org/master/guide-lifetimes.html
https://github.com/cburgdorf/Floor/blob/master/src/request.r...
If you're unfamiliar, Rust has some fairly strict rules about lifetimes. Basically this syntax means that the thing referenced by `origin` needs to live for as long as the Request that contains it.
In rust "lifetime" can be a part of the type, so Rust compiler can ensure that no code can keep reference to `origin` for longer than it keeps reference to the structure that owns it.
What it means is the local request.Request object Floor passes to handlers takes an exclusive immutable borrow of the incoming http.Request object; the 'a is effectively just house keeping to make the compiler happy, because we know the http.Request, coming from a higher call will always exist for the lifetime of the request.Request object in the handler.
...so what you said is true, but the point is that we're asserting using prior knowledge that the compiler cant infer about the lifetime of that borrowed http.Request object.
At least, thats my take on it.