Trait icu_provider::buf::BufferProvider

source · [−]
pub trait BufferProvider {
    fn load_buffer(
        &self, 
        req: &DataRequest
    ) -> Result<DataResponse<BufferMarker>, DataError>;
}
Expand description

A data provider that returns opaque bytes.

Generally, these bytes are expected to be deserializable with Serde. To get an object implementing DataProvider via Serde, use as_deserializing(), which requires enabling at least one of the Serde features.

Along with DataProvider, this is one of the two foundational traits in this crate.

Examples

use icu_provider::prelude::*;
use icu_provider::hello_world::*;
use icu_locid_macros::langid;

let buffer_provider = HelloWorldProvider::new_with_placeholder_data()
    .into_json_provider();

let data_provider = buffer_provider.as_deserializing();

let german_hello_world: DataPayload<HelloWorldV1Marker> = data_provider
    .load_payload(&DataRequest {
        resource_path: ResourcePath {
            key: key::HELLO_WORLD_V1,
            options: ResourceOptions {
                variant: None,
                langid: Some(langid!("de")),
            }
        }
    })
    .expect("Loading should succeed")
    .take_payload()
    .expect("Data should be present");

assert_eq!("Hallo Welt", german_hello_world.get().message);

Required methods

Implementors