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|
//! Object type for our RPC system.
use downcast_rs::DowncastSync;
use serde::{Deserialize, Serialize};
/// An object in our RPC system to which methods can be addressed.
pub trait Object: DowncastSync {}
downcast_rs::impl_downcast!(sync Object);
/// An identifier for an Object within the context of a Session.
///
/// These are opaque from the client's perspective.
#[derive(Debug, Eq, PartialEq, Hash, Clone, Serialize, Deserialize)]
#[serde(transparent)]
pub struct ObjectId(
// (We use Box<str> to save a word here, since these don't have to be
// mutable ever.)
Box<str>,
);
impl AsRef<str> for ObjectId {
fn as_ref(&self) -> &str {
self.0.as_ref()
}
}
impl<T> From<T> for ObjectId
where
T: Into<Box<str>>,
{
fn from(value: T) -> Self {
Self(value.into())
}
}
/// Declare that one or more space-separated types should be considered as
/// RPC objects.
///
/// # Example
///
/// ```
/// use tor_rpcbase as rpc;
///
/// #[derive(serde::Deserialize)]
/// struct Houseplant {
/// oxygen_per_sec: f64,
/// benign_neglect: u8
/// }
///
/// rpc::decl_object!{Houseplant}
/// ```
#[macro_export]
macro_rules! decl_object {
{$($id:ident)*}
=>
{
$(
$crate::impl_const_type_id!{$id}
)*
}
}
|
