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CacheLookup

shiplog_cache

Enum CacheLookup 

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pub enum CacheLookup<T> {
    Fresh(T),
    Stale(T),
    Miss,
}
Expand description

Result of looking up a cache entry without hiding expired rows.

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Fresh(T)

A present, unexpired cache row.

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Stale(T)

A present, expired cache row.

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Miss

No cache row exists for the key.

Trait Implementations§

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impl<T: Clone> Clone for CacheLookup<T>

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fn clone(&self) -> CacheLookup<T>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for CacheLookup<T>

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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<T: PartialEq> PartialEq for CacheLookup<T>

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fn eq(&self, other: &CacheLookup<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T: Eq> Eq for CacheLookup<T>

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impl<T> StructuralPartialEq for CacheLookup<T>

Auto Trait Implementations§

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impl<T> Freeze for CacheLookup<T>
where T: Freeze,

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impl<T> RefUnwindSafe for CacheLookup<T>
where T: RefUnwindSafe,

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impl<T> Send for CacheLookup<T>
where T: Send,

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impl<T> Sync for CacheLookup<T>
where T: Sync,

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impl<T> Unpin for CacheLookup<T>
where T: Unpin,

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impl<T> UnsafeUnpin for CacheLookup<T>
where T: UnsafeUnpin,

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impl<T> UnwindSafe for CacheLookup<T>
where T: UnwindSafe,

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<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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, U> Into<U> for T
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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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.