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#[cfg(feature = "general_renderer")]
use serde::Serialize;
use crate::error::ChainProcessError;
#[derive(Debug)]
pub struct AnyOutput {
inner: Box<dyn std::any::Any + Send + 'static>,
pub type_id: std::any::TypeId,
}
impl AnyOutput {
#[cfg(feature = "general_renderer")]
pub fn new<T>(value: T) -> Self
where
T: Send + Serialize + 'static,
{
Self {
inner: Box::new(value),
type_id: std::any::TypeId::of::<T>(),
}
}
#[cfg(not(feature = "general_renderer"))]
pub fn new<T>(value: T) -> Self
where
T: Send + 'static,
{
Self {
inner: Box::new(value),
type_id: std::any::TypeId::of::<T>(),
}
}
pub fn downcast<T: 'static>(self) -> Result<T, Self> {
if self.type_id == std::any::TypeId::of::<T>() {
Ok(*self.inner.downcast::<T>().unwrap())
} else {
Err(self)
}
}
pub fn is<T: 'static>(&self) -> bool {
self.type_id == std::any::TypeId::of::<T>()
}
/// Route the output to the next Chain
pub fn route_chain(self) -> ChainProcess {
ChainProcess::Ok((self, Next::Chain))
}
/// Route the output to the Renderer, ending execution
pub fn route_renderer(self) -> ChainProcess {
ChainProcess::Ok((self, Next::Renderer))
}
}
impl std::ops::Deref for AnyOutput {
type Target = dyn std::any::Any + Send + 'static;
fn deref(&self) -> &Self::Target {
&*self.inner
}
}
impl std::ops::DerefMut for AnyOutput {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut *self.inner
}
}
pub enum ChainProcess {
Ok((AnyOutput, Next)),
Err(ChainProcessError),
}
pub enum Next {
Chain,
Renderer,
}
impl ChainProcess {
pub fn is_next(&self) -> bool {
matches!(self, Self::Ok(_))
}
pub fn is_err(&self) -> bool {
matches!(self, Self::Err(_))
}
pub fn next(&self) -> Option<&Next> {
match self {
Self::Ok((_, next)) => Some(next),
Self::Err(_) => None,
}
}
pub fn err(&self) -> Option<&ChainProcessError> {
match self {
Self::Ok(_) => None,
Self::Err(err) => Some(err),
}
}
pub fn unwrap(self) -> (AnyOutput, Next) {
match self {
Self::Ok(tuple) => tuple,
Self::Err(_) => panic!("called `ChainProcess2::unwrap()` on an `Error` value"),
}
}
pub fn unwrap_or(self, default: (AnyOutput, Next)) -> (AnyOutput, Next) {
match self {
Self::Ok(tuple) => tuple,
Self::Err(_) => default,
}
}
pub fn unwrap_or_else<F>(self, f: F) -> (AnyOutput, Next)
where
F: FnOnce(ChainProcessError) -> (AnyOutput, Next),
{
match self {
Self::Ok(tuple) => tuple,
Self::Err(err) => f(err),
}
}
}
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