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Emit layout metadata from the intent IR

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This commit is contained in:
Dennis Kobert
2026-08-13 16:11:58 +00:00
parent 40f99152ce
commit f195e363a5
3 changed files with 60 additions and 45 deletions
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32
node-graph/node-macro/src/codegen/entries.rs
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@@ -54,8 +54,8 @@ fn flip_entries_tokens(parsed: &ParsedNodeFn, struct_name: &Ident, regular_field
let arity = regular_fields.len();
let names: Vec<&Ident> = regular_fields.iter().map(|field| &field.pat_ident.ident).collect();
let node_underscores: Vec<TokenStream2> = regular_fields.iter().map(|_| quote!(_)).collect();
let carrier_present = flip_carrier(parsed);
let sources = if carrier_present { quote!(::std::vec![0u8]) } else { quote!(::std::vec![]) };
let node = crate::codegen::ir::build(parsed);
let core_types = quote!(gcore);
// Shorthand associated types in the output only resolve against the
// generics' bounds, so rows name the output through a bounded alias. Only
@@ -142,16 +142,11 @@ fn flip_entries_tokens(parsed: &ParsedNodeFn, struct_name: &Ident, regular_field
let layout = format_ident!("__layout_{index}");
quote!(&#layout,)
});
let element_spec = quote!(gcore::record::ElementSpec::Concrete(gcore::record::element_write::<#row_output>()));
let layout_meta = crate::codegen::ir::layout_meta_tokens(&node, element_spec, &core_types);
Some(quote! {
gcore::registry::RegistryEntry {
layout_meta: Some(gcore::record::LayoutMeta {
sources: #sources,
reads: ::std::vec::Vec::new(),
element: gcore::record::ElementSpec::Concrete(gcore::record::element_write::<#row_output>()),
writes: ::std::vec::Vec::new(),
removes: ::std::vec::Vec::new(),
level_delta: 0,
}),
layout_meta: Some(#layout_meta),
io: gcore::registry::NodeIOTypes::new(
gcore::concrete!(gcore::context::ContextImpl<'static>),
gcore::registry::record_type::<#row_output>(),
@@ -325,18 +320,11 @@ fn single_row_entries(parsed: &ParsedNodeFn, class: &Class, struct_name: &Ident,
quote!(&#layout,)
});
let carried_meta = |sources: &[usize]| {
let sources = sources.iter().map(|index| *index as u8);
quote! {
Some(gcore::record::LayoutMeta {
sources: ::std::vec![#(#sources),*],
reads: ::std::vec::Vec::new(),
element: gcore::record::ElementSpec::Carried,
writes: ::std::vec::Vec::new(),
removes: ::std::vec::Vec::new(),
level_delta: 0,
})
}
let node = crate::codegen::ir::build(parsed);
let core_types = quote!(gcore);
let carried_meta = |_sources: &[usize]| {
let meta = crate::codegen::ir::layout_meta_tokens(&node, quote!(gcore::record::ElementSpec::Carried), &core_types);
quote!(Some(#meta))
};
let (io_output, wrap, prelude, new_layout_args, layout_meta) = match class {