def mapping_decided_failure

bendtorch-core@0.1.0.0 · src/tensor/transform_PROOF.bend:1709

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/lifecycle.bend as Lifecycle

1709def mapping_decided_failure(+input: Shape.Shape, +axes: List<&2, U32>, +plan: Layout.Plan<input, axes>, +index: U32,
1710  decision: Shape.BoolCase<U32.is_lt(index, Shape.count(Layout.output(input, axes, plan)))>,
1711  outside: {False{} == U32.is_lt(index, Shape.count(Layout.output(input, axes, plan))) : Bool}) ->
1712  {Layout.map_decided(input, axes, plan, index, decision) == Fail{Layout.ShapeError{Shape.FlatIndexOutOfBounds{}}} :
1713    Result<&2, &2, Layout.Error, Layout.Mapping<input, axes, plan, index>>}:
1714  match decision:
1715    case Shape.BFalse{equal}:
1716      {==}
1717    case Shape.BTrue{equal}:
1718      Empty.absurd({Layout.map_decided(input, axes, plan, index, Shape.BTrue{equal}) == Fail{Layout.ShapeError{Shape.FlatIndexOutOfBounds{}}} :
1719        Result<&2, &2, Layout.Error, Layout.Mapping<input, axes, plan, index>>},
1720          Lifecycle.false_true(Equal.trans(Bool, True{}, U32.is_lt(index, Shape.count(Layout.output(input, axes, plan))), False{}, equal,
1721            Equal.sym(Bool, False{}, U32.is_lt(index, Shape.count(Layout.output(input, axes, plan))), outside))))