Prefix parsing

parser/src/ast.rs

@@ -72,6 +72,13 @@ pub enum Postfix {
     Binary(BinaryOp, Expression),
 }
 
+#[derive(Debug, Clone, Serialize)]
+pub enum PreFix {
+    Ref,
+    RefMut,
+    Deref,
+}
+
 #[derive(Debug, Clone, Serialize)]
 pub enum Statement {
     Expression(Expression),
@@ -135,8 +142,9 @@ pub enum Expression {
     FloatLiteral(f64),
     BoolLiteral(bool),
     StringLiteral(String),
-    Postfix {
+    Fix {
         initial: Box<Expression>,
+        prefixes: Vec<PreFix>,
         postfixes: Vec<Postfix>,
     },
 }