Macro icu_provider::impl_casting_upcast
source · macro_rules! impl_casting_upcast { ($dyn_m:path, [ $($struct_m:ident),+, ]) => { ... }; }
Expand description
Implements UpcastDataPayload
from several data markers to a single data marker
that all share the same DataMarker::Yokeable
.
§Examples
use icu_provider::prelude::*;
use std::borrow::Cow;
#[icu_provider::data_struct(
FooV1Marker,
BarV1Marker = "demo/bar@1",
BazV1Marker = "demo/baz@1"
)]
pub struct FooV1<'data> {
message: Cow<'data, str>,
};
icu_provider::impl_casting_upcast!(
FooV1Marker,
[BarV1Marker, BazV1Marker,]
);