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Make node graph execution async

Browse source 
Make node macro generate async node implementations

Start propagating async through the node system

Async checkpoint

Make Any<'i> Send + Sync

Determine node io type using panic node

Fix types for raster_node macro

Finish porting node registry?

Fix lifetime errors

Remove Send + Sync requirements and start making node construction async

Async MVP

Fix tests

Clippy fix
This commit is contained in:
Dennis Kobert 2023-05-12 19:12:00 +02:00 • committed by Keavon Chambers
parent 8d778e4848
commit 259078c847
30 changed files with 545 additions and 239 deletions
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51
node-graph/node-macro/src/lib.rs
View file

@ -26,6 +26,9 @@ pub fn node_fn(attr: TokenStream, item: TokenStream) -> TokenStream {
.collect::<Vec<_>>(),
_ => Default::default(),
};
let asyncness = function.sig.asyncness.is_some();
let arg_idents = args
.iter()
.filter(|x| x.to_token_stream().to_string().starts_with('_'))
@ -141,21 +144,43 @@ pub fn node_fn(attr: TokenStream, item: TokenStream) -> TokenStream {
let input_lifetime = if generics.is_empty() { quote::quote!() } else { quote::quote!('input,) };
quote::quote! {
let node_impl = if asyncness {
quote::quote! {
impl <'input, #generics> Node<'input, #primary_input_ty> for #node_name<#(#args),*>
#where_clause
{
type Output = #output;
#[inline]
fn eval(&'input self, #primary_input_mutability #primary_input_ident: #primary_input_ty) -> Self::Output {
#(
let #parameter_mutability #parameter_idents = self.#parameter_idents.eval(());
)*
impl <'input, #generics> Node<'input, #primary_input_ty> for #node_name<#(#args),*>
#where_clause
{
type Output = core::pin::Pin<Box<dyn core::future::Future< Output = #output> + 'input>>;
#[inline]
fn eval(&'input self, #primary_input_mutability #primary_input_ident: #primary_input_ty) -> Self::Output {
#(
let #parameter_mutability #parameter_idents = self.#parameter_idents.eval(());
)*
#body
Box::pin(async move {#body})
}
}
}
} else {
quote::quote! {
impl <'input, #generics> Node<'input, #primary_input_ty> for #node_name<#(#args),*>
#where_clause
{
type Output = #output;
#[inline]
fn eval(&'input self, #primary_input_mutability #primary_input_ident: #primary_input_ty) -> Self::Output {
#(
let #parameter_mutability #parameter_idents = self.#parameter_idents.eval(());
)*
#body
}
}
}
};
let new_fn = quote::quote! {
impl <#input_lifetime #new_fn_generics> #node_name<#(#args),*>
where #(#extra_where_clause),*
@ -168,6 +193,10 @@ pub fn node_fn(attr: TokenStream, item: TokenStream) -> TokenStream {
}
}
};
quote::quote! {
#node_impl
#new_fn
}
.into()
}