feanor_math::homomorphism

Struct CanHomRef

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pub struct CanHomRef<'a, R, S>
where R: RingStore, S: RingStore, S::Type: CanHomFrom<R::Type>,
{ /* private fields */ }
Expand description

A wrapper of CanHomFrom::Homomorphism that does not own the data associated with the homomorphism. Use cases are rare, prefer to use CanHom whenever possible.

More concretely, this should only be used when you only have a reference to <R as CanHomFrom<S>>::Homomorphism, but cannot refactor code to wrap that object in a CanHom instead. The main situation where this occurs is when implementing CanHomFrom, since a the lifetime of CanHom is bound by the lifetime of the domain and codomain rings, but CanHomFrom::Type does not allow this.

§Availability

This API is marked as unstable and is only available when the unstable-enable crate feature is enabled. This comes with no stability guarantees, and could be changed or removed at any time.

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impl<'a, R, S> CanHomRef<'a, R, S>
where R: RingStore, S: RingStore, S::Type: CanHomFrom<R::Type>,

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pub fn raw_hom(&self) -> &<S::Type as CanHomFrom<R::Type>>::Homomorphism

§Availability

This API is marked as unstable and is only available when the unstable-enable crate feature is enabled. This comes with no stability guarantees, and could be changed or removed at any time.

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pub fn from_raw_parts( from: R, to: S, data: &'a <S::Type as CanHomFrom<R::Type>>::Homomorphism, ) -> Self

§Availability

This API is marked as unstable and is only available when the unstable-enable crate feature is enabled. This comes with no stability guarantees, and could be changed or removed at any time.

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impl<'a, R, S> Clone for CanHomRef<'a, R, S>
where R: RingStore + Clone, S: RingStore + Clone, S::Type: CanHomFrom<R::Type>,

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fn clone(&self) -> Self

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<'a, R, S> Homomorphism<<R as RingStore>::Type, <S as RingStore>::Type> for CanHomRef<'a, R, S>
where R: RingStore, S: RingStore, S::Type: CanHomFrom<R::Type>,

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type CodomainStore = S

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type DomainStore = R

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fn map(&self, el: El<R>) -> El<S>

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fn map_ref(&self, el: &El<R>) -> El<S>

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fn domain(&self) -> &R

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fn codomain(&self) -> &S

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fn mul_assign_map(&self, lhs: &mut Codomain::Element, rhs: Domain::Element)

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fn mul_assign_ref_map(&self, lhs: &mut Codomain::Element, rhs: &Domain::Element)

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fn mul_map( &self, lhs: Codomain::Element, rhs: Domain::Element, ) -> Codomain::Element

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fn mul_ref_fst_map( &self, lhs: &Codomain::Element, rhs: Domain::Element, ) -> Codomain::Element

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fn mul_ref_snd_map( &self, lhs: Codomain::Element, rhs: &Domain::Element, ) -> Codomain::Element

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fn mul_ref_map( &self, lhs: &Codomain::Element, rhs: &Domain::Element, ) -> Codomain::Element

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fn compose<F, PrevDomain: ?Sized + RingBase>( self, prev: F, ) -> ComposedHom<PrevDomain, Domain, Codomain, F, Self>
where Self: Sized, F: Homomorphism<PrevDomain, Domain>,

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impl<'a, R, S> Copy for CanHomRef<'a, R, S>
where R: RingStore + Copy, S: RingStore + Copy, S::Type: CanHomFrom<R::Type>, El<R>: Copy, El<S>: Copy,

Auto Trait Implementations§

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impl<'a, R, S> Freeze for CanHomRef<'a, R, S>
where R: Freeze, S: Freeze,

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impl<'a, R, S> RefUnwindSafe for CanHomRef<'a, R, S>

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impl<'a, R, S> Send for CanHomRef<'a, R, S>
where R: Send, S: Send, <<S as RingStore>::Type as CanHomFrom<<R as RingStore>::Type>>::Homomorphism: Sync,

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impl<'a, R, S> Sync for CanHomRef<'a, R, S>
where R: Sync, S: Sync, <<S as RingStore>::Type as CanHomFrom<<R as RingStore>::Type>>::Homomorphism: Sync,

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impl<'a, R, S> Unpin for CanHomRef<'a, R, S>
where R: Unpin, S: Unpin,

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impl<'a, R, S> UnwindSafe for CanHomRef<'a, R, S>

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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> Pointable for T

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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> 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.