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Add more comments on dispatch logic.

This commit is contained in:
Sergio Benitez 2017-01-06 00:42:24 -06:00
parent 8f8dde812d
commit 6165a6705c
1 changed files with 5 additions and 3 deletions
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8
lib/src/rocket.rs
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@ -164,6 +164,7 @@ impl Rocket {
// Route the request to get a response.
match self.route(request, data) {
Outcome::Success(mut response) => {
// A user's route responded!
let cookie_delta = request.cookies().delta();
if !cookie_delta.is_empty() {
response.adjoin_header(header::SetCookie(cookie_delta));
@ -172,6 +173,7 @@ impl Rocket {
response
}
Outcome::Forward(data) => {
// There was no matching route.
// Rust thinks `request` is still borrowed here, but it's
// obviously not (data has nothing to do with it), so we
// convince it to give us another mutable reference.
@ -198,9 +200,9 @@ impl Rocket {
/// Tries to find a `Responder` for a given `request`. It does this by
/// routing the request and calling the handler for each matching route
/// until one of the handlers returns success or failure. If a handler
/// returns a failure, or there are no matching handlers willing to accept
/// the request, this function returns an `Err` with the status code.
/// until one of the handlers returns success or failure, or there are no
/// additional routes to try (forward). The corresponding outcome for each
/// condition is returned.
#[doc(hidden)]
#[inline(always)]
pub fn route<'r>(&self, request: &'r Request, mut data: Data)