Struct EinsumCode 

pub struct EinsumCode {
    pub root: EinsumNode,
    pub output_ids: Vec<char>,
}

Parsed einsum code: contraction tree + final output indices.

Fields

root: EinsumNode

output_ids: Vec<char>

Implementations

impl EinsumCode

pub fn evaluate<'a>( &self, operands: Vec<EinsumOperand<'a>>, size_dict: Option<&HashMap<char, usize>>, ) -> Result<EinsumOperand<'a>>

Evaluate the einsum contraction tree with the given operands.

Borrowed view operands are propagated through the tree without copying. The result lifetime matches the input operand lifetime: if all inputs are owned ('static), the result is also 'static.

Pass size_dict to specify sizes for output indices not present in any input (generative outputs like "->ii" or "i->ij").

impl EinsumCode

pub fn evaluate_into<T: EinsumScalar>( &self, operands: Vec<EinsumOperand<'_>>, output: StridedViewMut<'_, T>, alpha: T, beta: T, size_dict: Option<&HashMap<char, usize>>, ) -> Result<()>

Evaluate the einsum contraction tree, writing the result directly into a user-provided output buffer with alpha/beta scaling.

output = alpha * einsum(operands) + beta * output

The output element type T must match the computation: use f64 when all operands are real, Complex64 when any operand is complex. If T = f64 but any operand is complex, returns TypeMismatch error. If T = Complex64, real operands are promoted automatically.

Pass size_dict to specify sizes for output indices not present in any input (generative outputs like "->ii" or "i->ij").

Trait Implementations

impl Clone for EinsumCode

fn clone(&self) -> EinsumCode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EinsumCode

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

Formats the value using the given formatter.

impl PartialEq for EinsumCode

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EinsumCode