Enum Outcome 

#[non_exhaustive]
pub enum Outcome {
    Matched {
        rule_set_index: usize,
        rule_index: usize,
    },
    Middleware {
        file_path: String,
        status: u16,
    },
    Fallback {
        file_path: String,
        status: u16,
    },
    Miss {
        status: u16,
    },
    Error {
        kind: String,
        message: String,
    },
}

What the server decided to do with the request.

RFC 073 F-08: every variant here must actually be emitted

Before this RFC, server.rs emitted Miss { status: 0 } for every request regardless of outcome — the correct index was computed and discarded — and nothing was emitted at all for a middleware match, a dyn-route fallback file, or a genuine 404. Fallback and Miss already existed but were unused outside this module’s own tests; Middleware is new, added because no existing shape fit a middleware match (its own script path, not a rule-set index, is what identifies which one answered).

#[non_exhaustive] — added in the same change that added Middleware

(REVIEW-001 F-02)

Adding Middleware here breaks any consumer with an exhaustive match on Outcome, regardless of what the public-API baseline diff shows — a new-variant addition is “additive” in the sense that tool tracks (a new pub item exists), not in the sense that matters to semver (a consumer’s exhaustive match stops compiling). Outcome was the one public enum in this crate not already carrying this attribute — ReloadHint, ServerState, ServerError, ServerErrorKind and TlsKind all have it; RFC 052 (which added it to five other types) never considered Outcome, so this gap pre-dates this tranche and simply hadn’t been triggered by an actual variant addition yet. Since this change breaks exhaustive matchers either way, marking it now means every future variant is free — the same reasoning RFC 052 used for the five types it covered.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Matched

Fields

rule_set_index: usize

rule_index: usize

Middleware

A Rhai middleware handled the request. file_path is the matched middleware script’s own path (MiddlewareHandler::file_path), mirroring Fallback’s use of a path over an index for the same reason: it identifies which handler answered without requiring a consumer to also have the server’s own middleware list on hand.

Fields

file_path: String

status: u16

Fallback

Fields

file_path: String

status: u16

Miss

Fields

status: u16

Error

Fields

kind: String

message: String

Trait Implementations

impl Clone for Outcome

fn clone(&self) -> Outcome

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Outcome

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Serialize for Outcome

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.