Layout.Mapping: type of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/tensor/layout.bend as Layout
Lines 288-301 of bendtorch-core@0.1.0.0/src/tensor/layout.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&start_line=288&end_line=301

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape

type Mapping<-input: Shape.Shape, -axes: List<&2, U32>, -plan: Plan<input, axes>, -i: U32> is Data:
  Mapped{output_index: FlatIndex<output(input, axes, plan)>,
    output_coordinate: CheckedCoordinate<output(input, axes, plan)>,
    input_coordinate: CheckedCoordinate<input>, index: FlatIndex<input>,
    requested: {index_value(output(input, axes, plan), output_index) == i : U32},
    decoded: {coordinate_values(output(input, axes, plan), output_coordinate) ==
      reverse_words(unflatten_words(reverse_words(Shape.dimensions(output(input, axes, plan))), i)) : List<&2, U32>},
    inverse: {Some{coordinate_values(input, input_coordinate)} ==
      inverse_coordinates(Shape.dimensions(input), axes,
        coordinate_values(output(input, axes, plan), output_coordinate), 0) : Maybe<&2, List<&2, U32>>},
    flattened: {index_value(input, index) ==
      flatten_words(Shape.dimensions(input), coordinate_values(input, input_coordinate), 0) : U32},
    roundtrip: {True{} == maybe_same(reorder(coordinate_values(input, input_coordinate), axes),
      Some{coordinate_values(output(input, axes, plan), output_coordinate)}) : Bool}}

Uses (18):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=Shape
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=dimensions
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=CheckedCoordinate
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=FlatIndex
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=Plan
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=coordinate_values
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=flatten_words
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=index_value
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=inverse_coordinates
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=maybe_same
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=output
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=reorder
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=reverse_words
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=unflatten_words