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Carry eight dropped columns through flatten_graphic

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Dennis Kobert
2026-09-15 14:34:54 +02:00
parent d1f7db77ed
commit 149e1fc4e0
1 changed files with 17 additions and 2 deletions
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node-graph/nodes/graphic/src/graphic.rs
+17 -2
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@@ -561,8 +561,21 @@ pub use _to_graphic_typed_mod::to_graphic_typed_entries;
pub use _to_graphic_unit_mod::to_graphic_unit_entries; pub use _to_graphic_unit_mod::to_graphic_unit_entries;
/// Removes a level of nesting from a `Graphic[]`, or all nesting if "Fully Flatten" is enabled. /// Removes a level of nesting from a `Graphic[]`, or all nesting if "Fully Flatten" is enabled.
///
/// A hoisted leaf carries the columns of the TOP-LEVEL row it came out of, not
/// of the nested lane it sat in. That is forced rather than chosen: a gather's
/// carry is a byte-copy plan resolved once, at wiring, from a statically known
/// layout, and only the subject's own per-lane layout is known then. A leaf's
/// layout belongs to whatever nested level held it and varies leaf by leaf, so
/// there is no single plan that could copy from it. Columns the top row does not
/// supply read their declared defaults, and any it carries that this output does
/// not declare are truncated.
#[node_macro::node(category("General"), extent(flatten_graphic_extent))] #[node_macro::node(category("General"), extent(flatten_graphic_extent))]
pub fn flatten_graphic(ctx: impl Ctx + ExtractIndex + InjectIndex + Copy, content: IList<Graphic<'static>>, fully_flatten: bool) -> Result<IList<(Graphic<'static>, Attr<TransformAttr>)>, Interrupt> { pub fn flatten_graphic<'e>(
ctx: impl Ctx + core_types::context::ExtractArena<'e> + ExtractIndex + InjectIndex + Copy,
content: IList<Graphic<'static>>,
fully_flatten: bool,
) -> Result<IList<(Lane<Graphic<'static>>, Attr<'e, TransformAttr>)>, Interrupt> {
let mut remaining = ctx.index() as usize; let mut remaining = ctx.index() as usize;
for row in 0..content.len() { for row in 0..content.len() {
let graphic = content.element_ref(row); let graphic = content.element_ref(row);
@@ -573,7 +586,9 @@ pub fn flatten_graphic(ctx: impl Ctx + ExtractIndex + InjectIndex + Copy, conten
} }
let transform: DAffine2 = content.lane(row).attr::<TransformAttr>(); let transform: DAffine2 = content.lane(row).attr::<TransformAttr>();
if let Some((leaf, composed)) = crate::record::locate(graphic, transform, fully_flatten, 0, &mut remaining) { if let Some((leaf, composed)) = crate::record::locate(graphic, transform, fully_flatten, 0, &mut remaining) {
return Ok((leaf, Attr(composed))); // The composed transform is the one genuine override: it is the path's
// product, not any single lane's column.
return Ok((content.lane(row).map_element(leaf), Attr(composed)));
} }
} }
Err(GraphError::new("flatten addressed past its leaf count").into()) Err(GraphError::new("flatten addressed past its leaf count").into())