feat(jit): lookup

src/vm/env.rs

@@ -5,8 +5,8 @@ use crate::ty::internal::{AttrSet, Value};
 
 #[derive(Debug, Default, Clone)]
 pub struct Env<'jit, 'vm> {
-    last: Option<Rc<Env<'jit, 'vm>>>,
-    map: Rc<HashMap<usize, Value<'jit, 'vm>>>,
+    pub map: Rc<HashMap<usize, Value<'jit, 'vm>>>,
+    pub last: Option<Rc<Env<'jit, 'vm>>>,
 }
 
 impl<'jit, 'vm> Env<'jit, 'vm> {