Enum subset_map::LookupResult
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pub enum LookupResult<'a, E, P: 'a> { Perfect(Option<&'a P>), Excluded(Option<&'a P>, Vec<E>), NoMatch, }
The result of SubsetMap::find
.
It can either be a perfect match on the subset or a match where some elements of the input set had to be excluded.
A value of None
for the payload indicates
that there was a match for a given subset but
nevertheless there was no payload stored for
that subset.
Variants
Perfect(Option<&'a P>)
The input set exactly matched a combination of the original set.
Excluded(Option<&'a P>, Vec<E>)
There were some elements in the input set that had to be excluded to match a subset of the original set
The excluded elements are returned.
NoMatch
There was no match at all for the given subset
Methods
impl<'a, E, P> LookupResult<'a, E, P>
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pub fn payload(&self) -> Option<&P>
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pub fn excluded_elements(&self) -> &[E]
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Returns the excluded elements if there was a match at all.
If there was no match the returned slice is also empty.
pub fn is_perfect(&self) -> bool
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Returns true
if there was a perfect match
pub fn is_excluded(&self) -> bool
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Returns true
if there was a match
but some elements had to be excluded
pub fn is_no_match(&self) -> bool
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Returns true
if there was no match at all
pub fn is_match(&self) -> bool
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Returns true
if there was a match even
though some elements had to be excluded
Trait Implementations
impl<'a, E: Debug, P: Debug + 'a> Debug for LookupResult<'a, E, P>
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Auto Trait Implementations
impl<'a, E, P> Send for LookupResult<'a, E, P> where
E: Send,
P: Sync,
E: Send,
P: Sync,
impl<'a, E, P> Sync for LookupResult<'a, E, P> where
E: Sync,
P: Sync,
E: Sync,
P: Sync,