GatherLAWS.index_of: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/tensor/gather_LAWS.bend as GatherLAWS
Lines 188-197 of bendtorch-core@0.1.0.0/src/tensor/gather_LAWS.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/tensor/gather_LAWS.bend&start_line=188&end_line=197

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/gather.bend as Gather

# A gather index is built as a tensor of its dimensions is: refused past
# rank 4 or 2^20 elements with the shape's own error, else it holds the
# shape of those dimensions.
def index_of(+entries: List<&2, U32>, -dimensions: List<&2, U32>, built: Shape.ConstructResult<dimensions>) ->
  Result<&2, &2, Gather.Error, Gather.Index>:
  match built:
    case Shape.SError{error}:
      Fail{Gather.TensorError{Core.ShapeError{error}}}
    case Shape.SBuilt{+shape, preserved}:
      Done{Gather.Index{shape, entries}}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  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=ConstructResult
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/core.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/gather.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/gather.bend&name=Index