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Name the attribute read for the type it reads

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The read is a number read, not a read of whatever the name holds: our
model has no coercion, so a name written at another value type is a graph
error rather than a conversion. The name says so.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Dennis Kobert
2026-09-09 11:35:38 +00:00
parent 6e22d6a412
commit f04d439b33
2 changed files with 8 additions and 6 deletions
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2
node-graph/interpreted-executor/src/dynamic_executor.rs
View File

@@ -801,7 +801,7 @@ mod test {
(NodeId(2), ProtoNode::value(ConstructionArgs::Value(value.into()), vec![])),
(NodeId(3), proto_node("graphic_nodes::graphic::WriteAttributeNode", vec![NodeId(0), NodeId(1), NodeId(2)])),
(NodeId(4), string_value(read_name)),
(NodeId(5), proto_node("graphic_nodes::graphic::ReadAttributeNode", vec![NodeId(3), NodeId(4)])),
(NodeId(5), proto_node("graphic_nodes::graphic::ReadNumberAttributeNode", vec![NodeId(3), NodeId(4)])),
],
}
}

12
node-graph/nodes/graphic/src/graphic.rs
View File

@@ -387,12 +387,14 @@ pub fn write_attribute<'e, T, V: WireValue>(
Ok((content, Attr(parked)))
}
/// Reads the attribute `name` names off each lane. An absent attribute reads as
/// the name's own default, so the value carries the declared type either way;
/// the name is constant text the compiler folds into an offset when the graph
/// compiles.
/// Reads the `f64` attribute `name` names off each lane. An absent attribute
/// reads as the name's own default, so the value is always a number; the name
/// is constant text the compiler folds into an offset when the graph compiles.
///
/// A name written at another value type is a graph error rather than a
/// conversion, so reading a number is never a coercion of one.
#[node_macro::node(category("Attributes: Read"))]
pub fn read_attribute<'e>(
pub fn read_number_attribute<'e>(
_: impl Ctx,
/// The content whose lanes carry the attribute.
(content, value): (f64, Attr<'e, Named<Name0, f64>>),