Trait EinsumScalar 

pub trait EinsumScalar:
    Sealed
    + Scalar
    + Default
    + 'static {
    // Required methods
    fn type_name() -> &'static str;
    fn wrap_data(data: StridedData<'_, Self>) -> EinsumOperand<'_>;
    fn wrap_array(arr: StridedArray<Self>) -> EinsumOperand<'static>;
    fn wrap_typed_tensor(arr: StridedArray<Self>) -> TypedTensor;
    fn extract_data<'a>(op: EinsumOperand<'a>) -> Result<StridedData<'a, Self>>;
    fn validate_operands(ops: &[Option<EinsumOperand<'_>>]) -> Result<()>;
}

Scalar types that can be used as the output element type for einsum_into.

Sealed trait: only implemented for f64 and Complex64.

Required Methods

fn type_name() -> &'static str

Human-readable type name for error messages.

fn wrap_data(data: StridedData<'_, Self>) -> EinsumOperand<'_>

Wrap typed StridedData into a type-erased EinsumOperand.

fn wrap_array(arr: StridedArray<Self>) -> EinsumOperand<'static>

Wrap an owned StridedArray into a type-erased EinsumOperand.

fn wrap_typed_tensor(arr: StridedArray<Self>) -> TypedTensor

Wrap an owned StridedArray into a TypedTensor.

fn extract_data<'a>(op: EinsumOperand<'a>) -> Result<StridedData<'a, Self>>

Extract typed data from a type-erased EinsumOperand, promoting if needed.

For f64: returns error if operand is C64. For Complex64: promotes F64 operands to C64.

fn validate_operands(ops: &[Option<EinsumOperand<'_>>]) -> Result<()>

Check whether any operand requires this type or is incompatible. Returns error early if T = f64 but any operand is C64.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl EinsumScalar for f64

fn type_name() -> &'static str

fn wrap_data(data: StridedData<'_, Self>) -> EinsumOperand<'_>

fn wrap_array(arr: StridedArray<Self>) -> EinsumOperand<'static>

fn wrap_typed_tensor(arr: StridedArray<Self>) -> TypedTensor

fn extract_data<'a>(op: EinsumOperand<'a>) -> Result<StridedData<'a, f64>>

fn validate_operands(ops: &[Option<EinsumOperand<'_>>]) -> Result<()>

impl EinsumScalar for Complex64

fn type_name() -> &'static str

fn wrap_data(data: StridedData<'_, Self>) -> EinsumOperand<'_>

fn wrap_array(arr: StridedArray<Self>) -> EinsumOperand<'static>

fn wrap_typed_tensor(arr: StridedArray<Self>) -> TypedTensor

fn extract_data<'a>(op: EinsumOperand<'a>) -> Result<StridedData<'a, Complex64>>

fn validate_operands(_ops: &[Option<EinsumOperand<'_>>]) -> Result<()>

Implementors