TransformPROOF.successful_step: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend as TransformPROOF
Lines 506-526 of bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&start_line=506&end_line=526

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

def successful_step(+input: Shape.Shape, +axes: List<&2, U32>, +plan: Layout.Plan<input, axes>, +index: U32,
  -original_source: Core.Tensor<input>, -original_target: Core.Tensor<Layout.output(input, axes, plan)>,
  -source: Core.Tensor<input>, -target: Core.Tensor<Layout.output(input, axes, plan)>, +mapping: Layout.Mapping<input, axes, plan, index>,
  +value: F32, -unit: Unit,
  -map_exact: {Done{mapping} == Layout.map_index(input, axes, plan, index) : Result<&2, &2, Layout.Error, Layout.Mapping<input, axes, plan, index>>},
  read_value: SourceValue<input, original_source, Layout.source_index(input, axes, plan, index, mapping), value>,
  read_kept: SourceKept<input, original_source, source>,
  update: KnownCheckedUpdate<Layout.output(input, axes, plan), original_target, target, index, value, unit>) ->
  SuccessfulStep<input, axes, plan, index, original_source, original_target, source, target>:
  SourceValue{read_equal} = read_value
  SourceKept{kept} = read_kept
  KnownCheckedUpdate{meaning} = update
  SuccessfulStep{(kept,
    (checked_update_route(Layout.output(input, axes, plan), original_target, target, index, value, unit, meaning),
      (Equal.trans(Maybe<&2, F32>, Core.checked_observe(Layout.output(input, axes, plan), target, index), Some{value},
        Transforms.expected_output(input, axes, plan, original_source, index),
        checked_update_value(Layout.output(input, axes, plan), original_target, target, index, value, unit, meaning),
        {\{MappedValue: equal => equal} : MappedValue<input, axes, plan, index, original_source, value> ->
          {Some{value} == Transforms.expected_output(input, axes, plan, original_source, index) : Maybe<&2, F32>}}(
            mapped_value(input, axes, plan, index, original_source, mapping, value, map_exact, SourceValue{read_equal}))),
        checked_update_frame(Layout.output(input, axes, plan), original_target, target, index, value, unit, meaning))))}

Uses (27):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.trans
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  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=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  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/tensor/core.bend&name=Tensor
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/core.bend&name=checked_observe
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/layout.bend&name=Mapping
  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=map_index
  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=source_index
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=KnownCheckedUpdate
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=MappedValue
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=SourceKept
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=SourceValue
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=SuccessfulStep
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=checked_update_frame
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=checked_update_route
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=checked_update_value
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transform_PROOF.bend&name=mapped_value
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/transforms.bend&name=expected_output