Unsafe lifetime

crates/parser/src/ast/mod.rs

@@ -17,10 +17,16 @@ pub struct Identifier(pub String);
 #[derive(Debug, Clone, Serialize, Default)]
 pub struct ParamList(pub Vec<VarDecl>);
 
+#[derive(Debug, Clone, Serialize, PartialEq, Eq, Hash)]
+pub enum Lifetime {
+    Lifetime(Identifier),
+    Unsafe,
+}
+
 #[derive(Debug, Clone, Serialize, PartialEq, Eq, Hash)]
 pub enum TypeExpr {
     Ref {
-        lifetime: Option<Identifier>,
+        lifetime: Option<Lifetime>,
         mutable: bool,
         ty: Box<TypeExpr>,
     },