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Poll source tasks once at spawn and land inline completions in the first eval

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This commit is contained in:
Dennis Kobert
2026-08-03 10:21:46 +00:00
parent 8fb18012cf
commit 562e6602eb
5 changed files with 142 additions and 47 deletions
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34
node-graph/node-macro/src/codegen.rs
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@@ -932,6 +932,22 @@ pub(crate) fn generate_node_impl(crate_ident: &CrateIdent, parsed: &ParsedNodeFn
},
_ => quote!(#core_types::gpoll::GPoll::Final(__future.await)),
};
let spawn_tail = |completion: TokenStream2, fallback: TokenStream2| {
quote! {
self.slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner).insert(__key, None);
let __slot = std::sync::Arc::clone(&self.slot);
if _runtime.0.spawn(_source, Box::pin(async move {
let __value = #completion;
__slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner).insert(__key, Some(__value));
})) {
let __entries = self.slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner);
if let Some(Some(__value)) = __entries.get(&__key) {
return __cell.merge(__value.clone());
}
}
#fallback
}
};
let eval_tail = match (async_fn, future_kernel) {
(false, false) => lift,
(true, _) => {
@@ -942,17 +958,12 @@ pub(crate) fn generate_node_impl(crate_ident: &CrateIdent, parsed: &ParsedNodeFn
.chain(data_names.iter().map(|name| quote!(self.#name.clone())))
.chain(kernel_value_names.iter().map(|name| quote!(#name.clone())));
let completion = future_completion(&parsed.output_type);
let tail = spawn_tail(completion, inflight.clone());
quote! {
#slot_check
self.slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner).insert(__key, None);
let __slot = std::sync::Arc::clone(&self.slot);
#(#snapshot_binding)*
let __future = self::#fn_name(#(#future_args),*);
_runtime.0.spawn(_source, Box::pin(async move {
let __value = #completion;
__slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner).insert(__key, Some(__value));
}));
#inflight
#tail
}
}
(false, true) => {
@@ -977,17 +988,12 @@ pub(crate) fn generate_node_impl(crate_ident: &CrateIdent, parsed: &ParsedNodeFn
_ => unreachable!("guarded by future_kernel"),
};
let completion = future_completion(&payload);
let tail = spawn_tail(completion, spawn_return);
quote! {
#slot_check
#placeholder_binding
#acquire
self.slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner).insert(__key, None);
let __slot = std::sync::Arc::clone(&self.slot);
_runtime.0.spawn(_source, Box::pin(async move {
let __value = #completion;
__slot.lock().unwrap_or_else(std::sync::PoisonError::into_inner).insert(__key, Some(__value));
}));
#spawn_return
#tail
}
}
};