catlog::zero::column

Struct IndexedHashColumn

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pub struct IndexedHashColumn<K, V, S = RandomState>(/* private fields */);
Expand description

An indexed column backed by hash maps.

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impl<K: Clone, V: Clone, S: Clone> Clone for IndexedHashColumn<K, V, S>

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fn clone(&self) -> IndexedHashColumn<K, V, S>

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<K, V, S> Column for IndexedHashColumn<K, V, S>
where K: Eq + Hash + Clone, V: Eq + Hash + Clone, S: BuildHasher,

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fn iter(&self) -> impl Iterator<Item = (K, &V)>

Iterates over pairs stored by the column.
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fn values(&self) -> impl Iterator<Item = &Self::Cod>

Iterates over values stored by the column.
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fn preimage(&self, y: &V) -> impl Iterator<Item = K>

Computes the preimage of the mapping at a value in the codomain. Read more
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fn is_empty(&self) -> bool

Is the mapping not defined anywhere?
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impl<K: Debug, V: Debug, S: Debug> Debug for IndexedHashColumn<K, V, S>

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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<K, V, S> Default for IndexedHashColumn<K, V, S>
where S: Default,

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<K, V, S> Mapping for IndexedHashColumn<K, V, S>
where K: Eq + Hash + Clone, V: Eq + Hash + Clone, S: BuildHasher,

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type Dom = K

Type of elements in domain of mapping.
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type Cod = V

Type of elements in codomain of mapping.
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fn apply(&self, x: &K) -> Option<V>

Applies the mapping at a point possibly in the domain.
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fn is_set(&self, x: &K) -> bool

Is the mapping defined at a point? Read more
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impl<K, V, S> MutMapping for IndexedHashColumn<K, V, S>
where K: Eq + Hash + Clone, V: Eq + Hash + Clone, S: BuildHasher,

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fn get(&self, x: &K) -> Option<&V>

Gets the value of the mapping at a point possibly in the domain. Read more
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fn set(&mut self, x: K, y: V) -> Option<V>

Sets the mapping at a point. Read more
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fn unset(&mut self, x: &K) -> Option<V>

Un-sets the mapping at a point, making it undefined at that point. Read more
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fn update( &mut self, x: Self::Dom, maybe_y: Option<Self::Cod>, ) -> Option<Self::Cod>

Updates the mapping at a point, setting or unsetting it. Read more
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impl<K, V, S> PartialEq for IndexedHashColumn<K, V, S>
where K: Eq + Hash, V: PartialEq, S: BuildHasher,

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fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.
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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<K, V, S> Eq for IndexedHashColumn<K, V, S>
where K: Eq + Hash, V: Eq, S: BuildHasher,

Auto Trait Implementations§

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impl<K, V, S> Freeze for IndexedHashColumn<K, V, S>
where S: Freeze,

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impl<K, V, S> RefUnwindSafe for IndexedHashColumn<K, V, S>
where K: RefUnwindSafe, V: RefUnwindSafe, S: RefUnwindSafe,

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impl<K, V, S> Send for IndexedHashColumn<K, V, S>
where K: Send, V: Send, S: Send,

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impl<K, V, S> Sync for IndexedHashColumn<K, V, S>
where K: Sync, V: Sync, S: Sync,

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impl<K, V, S> Unpin for IndexedHashColumn<K, V, S>
where K: Unpin, V: Unpin, S: Unpin,

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impl<K, V, S> UnwindSafe for IndexedHashColumn<K, V, S>
where K: UnwindSafe, V: UnwindSafe, S: 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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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<T> Same for T

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type Output = T

Should always be Self
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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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.
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impl<T> Scalar for T
where T: 'static + Clone + PartialEq + Debug,