Struct Identity 

pub struct Identity;

The loader’s default transform: items are left as they are.

Trait Implementations

impl Clone for Identity

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Identity

impl Debug for Identity

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

Formats the value using the given formatter.

impl Default for Identity

fn default() -> Self

Returns the “default value” for a type.

impl<In: Send + 'static> Transform<In> for Identity

type Output = In

The transformed item.

fn apply_batch(&self, _indices: &[usize], items: Vec<In>) -> Result<Vec<In>>

Transform the items of a batch, items[i] being the item at indices[i]; both have the same length. Default: apply to each item in order, up to the first error. Identity returns the items as they are, without a pass over them.

fn apply(&self, _index: usize, item: In) -> Result<In>

Transform item, the item at index. Called concurrently from several threads.

fn is_identity(&self) -> bool

Whether apply returns its input as is: the async path then applies it where the item is fetched instead of handing it to the pool. Default: false.

fn then<T>(self, next: T) -> Then<Self, T>

where Self: Sized, T: Transform<Self::Output>,

Apply self, then next to its output.