Struct rocket::fairing::Kind

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pub struct Kind(/* private fields */);
Expand description

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:

  • Ignite
  • Liftoff
  • Request
  • Response
  • Shutdown

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

Additionally, a fairing can request to be treated as a singleton by specifying the Singleton kind.

Implementations§

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impl Kind

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pub const Ignite: Kind = _

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

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pub const Liftoff: Kind = _

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

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pub const Request: Kind = _

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

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pub const Response: Kind = _

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

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pub const Shutdown: Kind = _

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

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pub const Singleton: Kind = _

Kind flag representing a singleton fairing.

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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 ignite_and_req = Kind::Ignite | Kind::Request;
assert!(ignite_and_req.is(Kind::Ignite | Kind::Request));

assert!(ignite_and_req.is(Kind::Ignite));
assert!(ignite_and_req.is(Kind::Request));

assert!(!ignite_and_req.is(Kind::Liftoff));
assert!(!ignite_and_req.is(Kind::Response));
assert!(!ignite_and_req.is(Kind::Ignite | Kind::Response));
assert!(!ignite_and_req.is(Kind::Ignite | Kind::Request | Kind::Response));
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pub fn is_exactly(self, other: Kind) -> bool

Returns true if self is exactly other.

§Example
use rocket::fairing::Kind;

let ignite_and_req = Kind::Ignite | Kind::Request;
assert!(ignite_and_req.is_exactly(Kind::Ignite | Kind::Request));

assert!(!ignite_and_req.is_exactly(Kind::Ignite));
assert!(!ignite_and_req.is_exactly(Kind::Request));
assert!(!ignite_and_req.is_exactly(Kind::Response));
assert!(!ignite_and_req.is_exactly(Kind::Ignite | Kind::Response));

Trait Implementations§

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impl BitOr for Kind

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type Output = Kind

The resulting type after applying the | operator.
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fn bitor(self, rhs: Self) -> Self

Performs the | operation. Read more
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impl Clone for Kind

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fn clone(&self) -> Kind

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Kind

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

Formats the value using the given formatter. Read more
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impl Display for Kind

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

Formats the value using the given formatter. Read more
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impl Copy for Kind

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impl RefUnwindSafe for Kind

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impl Send for Kind

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impl Sync for Kind

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impl Unpin for Kind

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impl UnwindSafe for Kind

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