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Drop the manual extent overrides in favor of the derivation

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Dennis Kobert
2026-08-22 15:55:49 +00:00
parent 0b2aa3798a
commit c0f50d41d7
6 changed files with 43 additions and 35 deletions
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27
node-graph/node-macro/src/codegen.rs
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@@ -1442,11 +1442,32 @@ pub(crate) fn generate_node_impl(crate_ident: &CrateIdent, parsed: &ParsedNodeFn
}
}
} else if let Some(subject_index) = ir::forwarded_subject(&node).filter(|_| node.output.shape.depth == 0) {
// A level-preserving passthrough forwards its subject's extents.
let name = &regular_fields[subject_index].pat_ident.ident;
// A level-preserving passthrough forwards its subject's extents,
// through the same per-binding query forms the explicit surface uses.
let field = &regular_fields[subject_index];
let name = &field.pat_ident.ident;
let query = match &field.ty {
ParsedFieldType::Node(_) => match ir::lazy_binding(&node, subject_index) {
ir::LazyBinding::DeriveRouting | ir::LazyBinding::DeriveCarrier => quote! {
let __query = |__copy: u64, __lvl: u8| {
let __head = #core_types::context::DeriveCtx::index_head(__input);
#core_types::record::DerivedRecordEdge::extent_at_derived(&self.#name, &#core_types::context::DeriveCtx::promoted(__input, &__head, __copy), __lvl)
};
},
_ => quote! {
let __query = |_: u64, __lvl: u8| #core_types::node::Node::extent_at(&self.#name, __input, __lvl);
},
},
ParsedFieldType::Regular(_) => quote! {
let __query = |_: u64, __lvl: u8| #core_types::node::Node::extent_at(&self.#name, __input, __lvl);
},
};
quote! {
fn extent_at(&self, __input: &#ctx_ident, __level: u8) -> #core_types::gpoll::GPoll<#core_types::gpoll::Extent> {
#core_types::node::Node::extent_at(&self.#name, __input, __level)
#query
let __arg = #core_types::extent::ExtentIn::new(&__query);
let __level_in = #core_types::extent::LevelIn::new(__level, <Self as #core_types::node::Node<#ctx_ident>>::layout(self).depth);
__arg.at(__level_in)
}
}
} else if node.output.shape.depth > 0 {