def natural_next

bendtorch-core@0.1.0.0 · src/tensor/transforms.bend:152

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape
import bendtorch-core@0.1.0.0/src/tensor/core.bend as Core
import bendtorch-core@0.1.0.0/src/tensor/layout.bend as Layout

152def natural_next(-input: Shape.Shape, -axes: List<&2, U32>, -plan: Layout.Plan<input, axes>, -cursor: Nat,
153  rec: Core.Tensor<input> -> Core.Tensor<Layout.output(input, axes, plan)> ->
154    Core.Tensor<input> & Result<&2, &1, Error, Core.Tensor<Layout.output(input, axes, plan)>>,
155  result: NaturalCopy<input, axes, plan, cursor>) ->
156  Core.Tensor<input> & Result<&2, &1, Error, Core.Tensor<Layout.output(input, axes, plan)>>:
157  match result:
158    case NaturalCopied{pair, index, exact, candidate}:
159      copy_next(input, axes, plan, rec, pair)
160    case NaturalError{source}:
161      (source, Fail{LayoutError{Layout.MappingError{}}})