mod wkt;
pub(crate) use wkt::make_wkt_descriptor_pool;
use prost::Message;
use crate::{DynamicMessage, MessageDescriptor};
/// Trait for message types that support reflection.
pub trait ReflectMessage: Message {
/// Gets a [`MessageDescriptor`] describing the type of this message.
fn descriptor(&self) -> MessageDescriptor;
/// Converts this message into an instance of [`DynamicMessage`] by going
/// through the byte representation.
fn transcode_to_dynamic(&self) -> DynamicMessage
where
Self: Sized,
{
let mut message = DynamicMessage::new(self.descriptor());
// This can only fail if `self.descriptor` returns a descriptor incompatible with the
// actual serialized bytes.
message
.transcode_from(self)
.expect("error converting to dynamic message");
message
}
}
impl<M> ReflectMessage for Box<M>
where
M: ReflectMessage,
{
fn descriptor(&self) -> MessageDescriptor {
(**self).descriptor()
}
}
#[test]
fn assert_object_safe() {
fn _foo(_: Box<dyn ReflectMessage>) {}
}