def attach_lift

bendtorch-core@0.1.0.0 · src/tensor/read_contract.bend:62

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape
import bendtorch-core@0.1.0.0/src/storage/main.bend as Storage
import bendtorch-core@0.1.0.0/src/tensor/core.bend as Core
import bendtorch-core@0.1.0.0/src/tensor/lifecycle.bend as Lifecycle

62def attach_lift(+shape: Shape.Shape, storage: Storage.Storage, counted: {Lifecycle.logical_length(storage) == Shape.elements(shape) : Nat},
63  -P: Result<&2, &1, Core.Error, Core.Tensor<shape>> -> Type,
64  h: @-valid: {Lifecycle.logical_length(storage) == Shape.logical_numel(Shape.dimensions(shape)) : Nat} -> P(Done{Core.TTensor{storage, valid}})) ->
65  P(Core.attach(shape, storage)):
66  match storage:
67    case Storage.Empty{}:
68      attached(shape, Storage.Empty{}, 0n, {==}, Shape.bool_case(Nat.is_eq(0n, Shape.elements(shape))), counted, P, h)
69    case Storage.Owned{+depth, +length, array, balanced, valid}:
70      attached(shape, Storage.Owned{depth, length, array, balanced, valid}, length, {==},
71        Shape.bool_case(Nat.is_eq(length, Shape.elements(shape))), counted, P, h)