Struct QNIndex

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pub struct QNIndex<S>where
    S: Sector,
{ /* private fields */ }

Expand description

Quantum-number index for one tensor leg.

Maps each sector to a block dimension, with a direction for flux computation.

§Invariants (enforced by constructor)

blocks is sorted by sector (Ord)
No duplicate sectors
Every block dimension is > 0

Implementations§

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impl<S> QNIndex<S>
where S: Sector,

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pub fn new(blocks: Vec<(S, usize)>, direction: Direction) -> QNIndex<S>

Create a new QN index.

blocks is sorted by sector. Panics if any block dimension is zero or if duplicate sectors are present.

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pub fn blocks(&self) -> &[(S, usize)]

Sector–dimension pairs (sorted by sector).

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pub fn direction(&self) -> Direction

Leg direction.

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pub fn num_blocks(&self) -> usize

Number of distinct sectors (blocks) in this index.

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pub fn total_dim(&self) -> usize

Total dimension (sum of all block dimensions).

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pub fn block_dim(&self, idx: usize) -> usize

Block dimension for a given block index.

Panics if idx >= self.num_blocks().

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pub fn sector(&self, idx: usize) -> &S

Sector for a given block index.

Panics if idx >= self.num_blocks().

Trait Implementations§

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impl<S> Clone for QNIndex<S>
where S: Clone + Sector,

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fn clone(&self) -> QNIndex<S>

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<S> Debug for QNIndex<S>
where S: Debug + Sector,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<S> UnwindSafe for QNIndex<S>
where 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> ByRef<T> for T

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fn by_ref(&self) -> &T

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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<T> DistributionExt for T
where T: ?Sized,

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fn rand<T>(&self, rng: &mut (impl Rng + ?Sized)) -> T
where Self: Distribution<T>,

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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> Imply<T> for U
where T: ?Sized, U: ?Sized,

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impl<T, U> Into 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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