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Unify the layout metadata model and collapse the single-row entry emitters

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This commit is contained in:
Dennis Kobert
2026-08-12 13:11:48 +00:00
parent b6f73b0691
commit 83fbaca6f2
4 changed files with 246 additions and 277 deletions
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17
node-graph/node-macro/src/codegen.rs
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@@ -1747,10 +1747,25 @@ pub(crate) fn generate_node_impl(crate_ident: &CrateIdent, parsed: &ParsedNodeFn
Some(ty) => quote!(#core_types::record::ElementSpec::Concrete(#core_types::record::element_write::<#ty>())),
None => quote!(#core_types::record::ElementSpec::Carried),
};
let sources = if carrier_present { quote!(::std::vec![0u8]) } else { quote!(::std::vec![]) };
let reads_meta: Vec<TokenStream2> = regular_fields
.iter()
.enumerate()
.filter(|(_, field)| !field.attribute_reads.is_empty())
.map(|(index, field)| {
let descs = field.attribute_reads.iter().map(|read| {
let marker = &read.marker;
quote!(#core_types::record::FieldWrite::of::<#marker>(0))
});
let index = index as u8;
quote!(#core_types::record::InputReads { input: #index, reads: ::std::vec![#(#descs),*] })
})
.collect();
let layout_meta_def = quote! {
#vis fn #layout_meta_fn() -> #core_types::record::LayoutMeta {
#core_types::record::LayoutMeta {
carrier: #carrier_present,
sources: #sources,
reads: ::std::vec![#(#reads_meta),*],
element: #element_spec,
writes: ::std::vec![#(#write_descs),*],
removes: ::std::vec![#(#remove_pairs),*],