rten_tensor

Trait MutLayout

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pub trait MutLayout: Layout + Clone {

Show 14 methods    // Required methods
    fn from_shape(shape: Self::Index<'_>) -> Self;
    fn from_shape_and_strides(
        shape: Self::Index<'_>,
        strides: Self::Index<'_>,
        overlap: OverlapPolicy,
    ) -> Result<Self, FromDataError>;
    fn move_axis(&mut self, from: usize, to: usize);
    fn permuted(&self, order: Self::Index<'_>) -> Self;
    fn resize_dim(&mut self, dim: usize, size: usize);
    fn transposed(&self) -> Self;
    fn slice<const M: usize>(
        &self,
        range: &[SliceItem],
    ) -> Result<(Range<usize>, NdLayout<M>), SliceError>;
    fn slice_dyn(
        &self,
        range: &[SliceItem],
    ) -> Result<(Range<usize>, DynLayout), SliceError>;
    fn squeezed(&self) -> DynLayout;
    fn split(
        &self,
        axis: usize,
        mid: usize,
    ) -> ((Range<usize>, Self), (Range<usize>, Self));

    // Provided methods
    fn index_axis(
        &self,
        axis: usize,
        index: usize,
    ) -> (Range<usize>, <Self as RemoveDim>::Output)
       where Self: RemoveDim { ... }
    fn reshaped_for_view<S: IntoLayout>(
        &self,
        shape: S,
    ) -> Result<S::Layout, ReshapeError> { ... }
    fn reshaped_for_copy<S: IntoLayout>(
        &self,
        shape: S,
    ) -> Result<S::Layout, ReshapeError> { ... }
    fn slice_axis(
        &self,
        axis: usize,
        range: Range<usize>,
    ) -> (Range<usize>, Self) { ... }

}
Expand description

MutLayout extends Layout with methods for creating, modifying and transforming layouts.

Required Methods§

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fn from_shape(shape: Self::Index<'_>) -> Self

Create a new contiguous layout with a given shape.

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fn from_shape_and_strides( shape: Self::Index<'_>, strides: Self::Index<'_>, overlap: OverlapPolicy, ) -> Result<Self, FromDataError>

Create a layout with custom strides.

The strides specify the offset gap between successive entries along a given axis. overlap controls whether the layout is allowed to map multiple indices to the same element. This can be true for immutable views, but must be false for tensors or views that are mutable.

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fn move_axis(&mut self, from: usize, to: usize)

Move the axis at position from to to by swapping their strides.

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fn permuted(&self, order: Self::Index<'_>) -> Self

Return a layout with the axes permuted according to the given order.

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fn resize_dim(&mut self, dim: usize, size: usize)

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fn transposed(&self) -> Self

Reverse the order of dimensions. This is equivalent to self.permuted([N-1, N-2, ... 0]).

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fn slice<const M: usize>( &self, range: &[SliceItem], ) -> Result<(Range<usize>, NdLayout<M>), SliceError>

Slice the layout and return a static-rank layout.

Returns a tuple of (offset_range, sliced_layout).

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fn slice_dyn( &self, range: &[SliceItem], ) -> Result<(Range<usize>, DynLayout), SliceError>

Slice the layout and return a dynamic rank layout.

Returns a tuple of (offset_range, sliced_layout).

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fn squeezed(&self) -> DynLayout

Return a layout with all size-one dimensions removed.

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fn split( &self, axis: usize, mid: usize, ) -> ((Range<usize>, Self), (Range<usize>, Self))

Split the layout along the given axis into two.

Returns a tuple of (left, right) where each item is an (offset_range, layout) tuple.

Provided Methods§

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fn index_axis( &self, axis: usize, index: usize, ) -> (Range<usize>, <Self as RemoveDim>::Output)
where Self: RemoveDim,

Slice a layout by selecting a single entry from a given axis.

Returns an (offset_range, layout) tuple for the sliced layout.

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fn reshaped_for_view<S: IntoLayout>( &self, shape: S, ) -> Result<S::Layout, ReshapeError>

Return a new layout formed by reshaping this one to shape.

This has the same requirements as reshaped_for_copy but also requires that the layout is contiguous.

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fn reshaped_for_copy<S: IntoLayout>( &self, shape: S, ) -> Result<S::Layout, ReshapeError>

Return a new layout formed by reshaping this one to shape.

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fn slice_axis(&self, axis: usize, range: Range<usize>) -> (Range<usize>, Self)

Slice the layout along a given axis.

Returns a tuple of (offset_range, sliced_layout).

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§