def step_write_retains

bendtorch-core@0.1.0.0 · src/tensor/elementwise_PROOF.bend:251

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/elementwise.bend as Elementwise
import bendtorch-core@0.1.0.0/src/tensor/elementwise_totality.bend as Totality

251def step_write_retains(-shape: Shape.Shape, -original_left: Core.Dynamic, -original_right: Core.Dynamic,
252  left: Core.Dynamic, right: Core.Dynamic, pair: Core.Tensor<shape> & Result<&2, &2, Core.Error, Unit>,
253  -left_same: Totality.SameSource(original_left, left), -right_same: Totality.SameSource(original_right, right)) ->
254  StepSources<shape, original_left, original_right, Elementwise.step_write(shape, left, right, pair)>:
255  (output, result) = pair
256  match result:
257    case Fail{error}:
258      StepSources{left_same, right_same}
259    case Done{unit}:
260      StepSources{left_same, right_same}