Struct rocket4::fairing::Kind

pub struct Kind(_);

A bitset representing the kinds of callbacks a Fairing wishes to receive.

A fairing can request any combination of any of the following kinds of callbacks:

• Attach
• Launch
• Request
• Response

Two Kind structures can be ord together to represent a combination. For instance, to represent a fairing that is both a launch and request fairing, use Kind::Launch | Kind::Request. Similarly, to represent a fairing that is only an attach fairing, use Kind::Attach.

Implementations

impl Kind

pub const Attach: Kind = Kind(1)

Kind flag representing a request for an ‘attach’ callback.

pub const Launch: Kind = Kind(2)

Kind flag representing a request for a ‘launch’ callback.

pub const Request: Kind = Kind(4)

Kind flag representing a request for a ‘request’ callback.

pub const Response: Kind = Kind(8)

Kind flag representing a request for a ‘response’ callback.

pub fn is(self, other: Kind) -> bool

Returns true if self is a superset of other. In other words, returns true if all of the kinds in other are also in self.

Example

use rocket::fairing::Kind;

let launch_and_req = Kind::Launch | Kind::Request;
assert!(launch_and_req.is(Kind::Launch | Kind::Request));

assert!(launch_and_req.is(Kind::Launch));
assert!(launch_and_req.is(Kind::Request));

assert!(!launch_and_req.is(Kind::Response));
assert!(!launch_and_req.is(Kind::Launch | Kind::Response));
assert!(!launch_and_req.is(Kind::Launch | Kind::Request | Kind::Response));

pub fn is_exactly(self, other: Kind) -> bool

Returns true if self is exactly other.

Example

use rocket::fairing::Kind;

let launch_and_req = Kind::Launch | Kind::Request;
assert!(launch_and_req.is_exactly(Kind::Launch | Kind::Request));

assert!(!launch_and_req.is_exactly(Kind::Launch));
assert!(!launch_and_req.is_exactly(Kind::Request));
assert!(!launch_and_req.is_exactly(Kind::Response));
assert!(!launch_and_req.is_exactly(Kind::Launch | Kind::Response));

Trait Implementations

impl BitOr<Kind> for Kind

type Output = Kind

The resulting type after applying the | operator.

fn bitor(self, rhs: Kind) -> Kind

Performs the | operation.

impl Clone for Kind

fn clone(&self) -> Kind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Kind

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

Formats the value using the given formatter.

impl Copy for Kind