MaybePoolConnection

Enum MaybePoolConnection 

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pub enum MaybePoolConnection<'c, DB>
where DB: Database,
{ Connection(&'c mut <DB as Database>::Connection), PoolConnection(PoolConnection<DB>), }

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Connection(&'c mut <DB as Database>::Connection)

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PoolConnection(PoolConnection<DB>)

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impl<'c, DB> Deref for MaybePoolConnection<'c, DB>
where DB: Database,

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type Target = <DB as Database>::Connection

The resulting type after dereferencing.
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fn deref(&self) -> &<MaybePoolConnection<'c, DB> as Deref>::Target

Dereferences the value.
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impl<'c, DB> DerefMut for MaybePoolConnection<'c, DB>
where DB: Database,

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fn deref_mut(&mut self) -> &mut <MaybePoolConnection<'c, DB> as Deref>::Target

Mutably dereferences the value.
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impl<'c, DB> From<&'c mut <DB as Database>::Connection> for MaybePoolConnection<'c, DB>
where DB: Database,

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fn from(v: &'c mut <DB as Database>::Connection) -> MaybePoolConnection<'c, DB>

Converts to this type from the input type.
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impl<'c, DB> From<PoolConnection<DB>> for MaybePoolConnection<'c, DB>
where DB: Database,

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fn from(v: PoolConnection<DB>) -> MaybePoolConnection<'c, DB>

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'c, DB> Freeze for MaybePoolConnection<'c, DB>
where <DB as Database>::Connection: Freeze,

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impl<'c, DB> !RefUnwindSafe for MaybePoolConnection<'c, DB>

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impl<'c, DB> Send for MaybePoolConnection<'c, DB>

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impl<'c, DB> Sync for MaybePoolConnection<'c, DB>
where <DB as Database>::Connection: Sync,

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impl<'c, DB> Unpin for MaybePoolConnection<'c, DB>
where <DB as Database>::Connection: Unpin,

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impl<'c, DB> !UnwindSafe for MaybePoolConnection<'c, DB>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<K, V, T> Expiry<K, V> for T
where T: Deref<Target = dyn Expiry<K, V> + Sync + Send>,

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fn expire_after_create( &self, key: &K, value: &V, created_at: Instant, ) -> Option<Duration>

Specifies that the entry should be automatically removed from the cache once the duration has elapsed after the entry’s creation. This method is called for cache write methods such as insert and get_with but only when the key was not present in the cache. Read more
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fn expire_after_read( &self, key: &K, value: &V, read_at: Instant, duration_until_expiry: Option<Duration>, last_modified_at: Instant, ) -> Option<Duration>

Specifies that the entry should be automatically removed from the cache once the duration has elapsed after its last read. This method is called for cache read methods such as get and get_with but only when the key is present in the cache. Read more
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fn expire_after_update( &self, key: &K, value: &V, updated_at: Instant, duration_until_expiry: Option<Duration>, ) -> Option<Duration>

Specifies that the entry should be automatically removed from the cache once the duration has elapsed after the replacement of its value. This method is called for cache write methods such as insert but only when the key is already present in the cache. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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where R: RngCore + ?Sized,

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fn random<T>(&mut self) -> T

Return a random value via the StandardUniform distribution. Read more
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fn random_iter<T>(self) -> Iter<StandardUniform, Self, T>

Return an iterator over random variates Read more
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fn random_range<T, R>(&mut self, range: R) -> T
where T: SampleUniform, R: SampleRange<T>,

Generate a random value in the given range. Read more
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fn random_bool(&mut self, p: f64) -> bool

Return a bool with a probability p of being true. Read more
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fn random_ratio(&mut self, numerator: u32, denominator: u32) -> bool

Return a bool with a probability of numerator/denominator of being true. Read more
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fn sample<T, D>(&mut self, distr: D) -> T
where D: Distribution<T>,

Sample a new value, using the given distribution. Read more
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fn sample_iter<T, D>(self, distr: D) -> Iter<D, Self, T>
where D: Distribution<T>, Self: Sized,

Create an iterator that generates values using the given distribution. Read more
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fn fill<T>(&mut self, dest: &mut T)
where T: Fill + ?Sized,

Fill any type implementing Fill with random data Read more
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fn gen<T>(&mut self) -> T

👎Deprecated since 0.9.0: Renamed to random to avoid conflict with the new gen keyword in Rust 2024.
Alias for Rng::random.
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fn gen_range<T, R>(&mut self, range: R) -> T
where T: SampleUniform, R: SampleRange<T>,

👎Deprecated since 0.9.0: Renamed to random_range
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fn gen_bool(&mut self, p: f64) -> bool

👎Deprecated since 0.9.0: Renamed to random_bool
Alias for Rng::random_bool.
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fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

👎Deprecated since 0.9.0: Renamed to random_ratio
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impl<T> RngCore for T
where T: DerefMut, <T as Deref>::Target: RngCore,

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fn next_u32(&mut self) -> u32

Return the next random u32. Read more
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fn next_u64(&mut self) -> u64

Return the next random u64. Read more
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fn fill_bytes(&mut self, dst: &mut [u8])

Fill dest with random data. Read more
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type Output = T

Should always be Self
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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Performs the conversion.
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where R: RngCore + ?Sized,

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type Error = Infallible

The type returned in the event of a RNG error.
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fn try_next_u32(&mut self) -> Result<u32, <R as TryRngCore>::Error>

Return the next random u32.
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fn try_next_u64(&mut self) -> Result<u64, <R as TryRngCore>::Error>

Return the next random u64.
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fn try_fill_bytes( &mut self, dst: &mut [u8], ) -> Result<(), <R as TryRngCore>::Error>

Fill dest entirely with random data.
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fn unwrap_err(self) -> UnwrapErr<Self>
where Self: Sized,

Wrap RNG with the UnwrapErr wrapper.
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Wrap RNG with the UnwrapMut wrapper.
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fn read_adapter(&mut self) -> RngReadAdapter<'_, Self>
where Self: Sized,

Convert an RngCore to a RngReadAdapter.
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fn vzip(self) -> V

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