Trait icu_provider::datagen::DataConverter

pub trait DataConverter<MFrom: DataMarker, MTo: DataMarker> {
    fn convert(
        &self, 
        key: ResourceKey, 
        from: DataPayload<MFrom>
    ) -> Result<DataPayload<MTo>, ReturnedPayloadError<MFrom>>;
}

A trait that allows for converting between data payloads of different types.

These payloads will typically be some kind of erased payload, either with AnyMarker, BufferMarker, or SerializeMarker, where converting requires reifying the type. A type implementing DataConverter will essentially have a “registry” mapping keys to concrete marker types M, and reifying the input to a DataPayload<M>, performing some conversion or computation, and erasing the result to DataPayload<MTo>.

It will typically be implemented on data providers used in datagen.

The impl_dyn_provider is able to automatically implement this trait.

Required Methods

fn convert(
    &self,
    key: ResourceKey,
    from: DataPayload<MFrom>
) -> Result<DataPayload<MTo>, ReturnedPayloadError<MFrom>>

Implementations on Foreign Types

impl<MFrom, MTo, P> DataConverter<MFrom, MTo> for Box<P> where
    MFrom: DataMarker,
    MTo: DataMarker,
    P: DataConverter<MFrom, MTo> + ?Sized, 

fn convert(
    &self,
    key: ResourceKey,
    from: DataPayload<MFrom>
) -> Result<DataPayload<MTo>, ReturnedPayloadError<MFrom>>

Implementors

impl DataConverter<AnyMarker, SerializeMarker> for HelloWorldProvider

impl DataConverter<BufferMarker, HeapStatsMarker> for HelloWorldProvider