Move the downstream-typed attribute markers to their value types' crates

node-graph/nodes/text/src/markers.rs

@@ -0,0 +1,32 @@
+//! Attribute markers whose value types live in this crate, with their name
+//! constants for the string-keyed legacy readers and writers.
+
+use core_types::attribute::Attribute;
+
+core_types::attribute! {
+	/// Text item's font, as a resource of the loaded font file.
+	pub Font("font"): &graphene_resource::Resource;
+	/// Text item's horizontal alignment of lines within the block.
+	pub TextAlign("text_align"): crate::TextAlign;
+}
+
+pub const ATTR_FONT: &str = Font::NAME;
+pub const ATTR_TEXT_ALIGN: &str = TextAlign::NAME;
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+	use core_types::attribute::info;
+	use std::any::TypeId;
+
+	#[test]
+	fn the_census_carries_this_crates_names() {
+		assert_eq!(info("font").unwrap().value_type, TypeId::of::<&'static graphene_resource::Resource>());
+		assert_eq!(info("text_align").unwrap().value_type, TypeId::of::<crate::TextAlign>());
+	}
+
+	#[test]
+	fn the_font_default_is_the_empty_resource() {
+		assert!(<Font as Attribute>::default().is_empty());
+	}
+}