Enum kvarn::comprash::CacheOut

source ·
pub enum CacheOut<V> {
    None,
    Present(V),
    NotInserted(V),
}
Expand description

Output of cache operations.

CacheOut::None and CacheOut::Present reflects the HashMap API. CacheOut::NotInserted is added to indicate the content to be cached does not meet the requirements (e.g. it’s too big)

Variants§

§

None

No value.

Returned when no item occupies the input key.

§

Present(V)

Successful cache lookup.

Returned when an item occupies the input key.

§

NotInserted(V)

Error when value failed to get inserted. See CacheOut.

Implementations§

Maps self to an Option.

Variants with a value are turned to Some and CacheOut::None to None.

Applies a function to the inner value V of CacheOut, if not CacheOut::None and returns a CacheOut with the transformed K.

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method tests for self and other values to be equal, and is used by ==.
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Compare self to key and return true if they are equal.

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

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

Should always be Self
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more