jit works

src/syntax/ast.rs

@@ -154,6 +154,19 @@ impl PartialEq for Expression {
     }
 }
 
+impl Expression {
+    /// Get the location of the expression in the source file (if there is one).
+    pub fn location(&self) -> &Location {
+        match self {
+            Expression::Value(loc, _) => loc,
+            Expression::Reference(loc, _) => loc,
+            Expression::Cast(loc, _, _) => loc,
+            Expression::Primitive(loc, _, _) => loc,
+            Expression::Block(loc, _) => loc,
+        }
+    }
+}
+
 /// A value from the source syntax
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum Value {

src/syntax/tokens.rs

@@ -270,6 +270,7 @@ impl TryFrom<i64> for ConstantType {
             21 => Ok(ConstantType::I16),
             22 => Ok(ConstantType::I32),
             23 => Ok(ConstantType::I64),
+            255 => Ok(ConstantType::Void),
             _ => Err(InvalidConstantType::Value(value)),
         }
     }