Struct Tensor 

pub struct Tensor<'a> { /* private fields */ }

An immutable view of a TensorFlow Lite tensor.

Tensor borrows the underlying C tensor pointer and the dynamically loaded library handle for the duration of its lifetime 'a. It provides read-only access to tensor metadata (name, shape, type) and data.

Use Tensor::as_slice to obtain a typed slice over the tensor data.

Implementations

impl Tensor<'_>

pub fn tensor_type(&self) -> TensorType

Returns the element data type of this tensor.

If the C API returns a type value not represented by TensorType, this method defaults to TensorType::NoType.

pub fn name(&self) -> &str

Returns the name of this tensor as a string slice.

Returns "<invalid-utf8>" if the C API returns a name that is not valid UTF-8.

pub fn num_dims(&self) -> Result<usize>

Returns the number of dimensions (rank) of this tensor.

Errors

Returns an error if the tensor does not have its dimensions set (the C API returns -1).

pub fn dim(&self, index: usize) -> Result<usize>

Returns the size of the index-th dimension.

Errors

Returns an error if index is out of bounds (>= num_dims).

pub fn shape(&self) -> Result<Vec<usize>>

Returns the full shape of this tensor as a Vec<usize>.

Errors

Returns an error if the tensor dimensions are not set.

pub fn byte_size(&self) -> usize

Returns the total number of bytes required to store this tensor’s data.

pub fn volume(&self) -> Result<usize>

Returns the total number of elements in this tensor (product of all dimensions).

Errors

Returns an error if the tensor dimensions are not set.

pub fn quantization_params(&self) -> QuantizationParams

Returns the affine quantization parameters for this tensor.

pub fn as_slice<T: Copy>(&self) -> Result<&[T]>

Returns an immutable slice over the tensor data, interpreted as elements of type T.

The slice length equals Tensor::volume. The caller must ensure that T matches the tensor’s actual element type (e.g., f32 for a Float32 tensor, u8 for a UInt8 tensor).

Errors

Returns an error if:

• size_of::<T>() * volume exceeds Tensor::byte_size
• The underlying data pointer is null (tensor not yet allocated)

Trait Implementations

impl Debug for Tensor<'_>

Formats the tensor as "name: 1x224x224x3 Float32".

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Tensor<'_>

Displays the tensor as "name: 1x224x224x3 Float32".

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.