Implement the new partial type in the renderer.

src/parser/mod.rs

@@ -8,6 +8,7 @@ pub use parser::DustTag;
 pub use parser::Filter;
 pub use parser::KVPair;
 pub use parser::OwnedLiteral;
+pub use parser::PartialNameElement;
 pub use parser::RValue;
 pub use parser::Special;
 pub use parser::Template;

src/parser/parser.rs

@@ -193,6 +193,24 @@ impl From<TemplateElement<'_>> for PartialNameElement {
     }
 }
 
+impl<'a> From<&'a PartialNameElement> for TemplateElement<'a> {
+    fn from(original: &'a PartialNameElement) -> Self {
+        match original {
+            PartialNameElement::PNSpan { contents } => {
+                TemplateElement::TESpan(Span { contents: contents })
+            }
+            PartialNameElement::PNReference { path, filters } => {
+                TemplateElement::TETag(DustTag::DTReference(Reference {
+                    path: Path {
+                        keys: path.into_iter().map(|s| s.as_str()).collect(),
+                    },
+                    filters: filters.into_iter().map(|f| f.clone()).collect(),
+                }))
+            }
+        }
+    }
+}
+
 /// Any element significant to dust that isn't plain text
 ///
 /// These elements are always wrapped in curly braces