Refrence lifetimes

parser/src/lib.rs

@@ -49,14 +49,26 @@ impl From<pest::iterators::Pair<'_, Rule>> for TypeExpr {
 impl From<pest::iterators::Pair<'_, Rule>> for TypePostfix {
     fn from(pair: pest::iterators::Pair<'_, Rule>) -> Self {
         let rule = pair.as_rule();
-        let inner = pair.into_inner();
+        let mut inner = pair.into_inner();
 
         match rule {
             Rule::ref_type => {
-                if inner.peek().is_some() {
-                    TypePostfix::RefMut
+                let mutable = listen_rule(&mut inner, Rule::mutable);
+                let lifetime = consume_rule(&mut inner, Rule::lifetime)
+                    .map(|pair| Identifier::from(pair.into_inner().next().unwrap()));
+
+                if mutable {
+                    if let Some(lifetime) = lifetime {
+                        TypePostfix::RefMutLifetime(lifetime)
+                    } else {
+                        TypePostfix::Ref
+                    }
                 } else {
-                    TypePostfix::Ref
+                    if let Some(lifetime) = lifetime {
+                        TypePostfix::RefLifetime(lifetime)
+                    } else {
+                        TypePostfix::RefMut
+                    }
                 }
             }
             _ => unimplemented!("{rule:#?}"),