feat: JIT (WIP)

src/env.rs

@@ -25,7 +25,10 @@ impl Env {
         }
     }
 
-    pub fn with_new_cache<T>(&mut self, f: impl FnOnce(&mut Self) -> T) -> (T, HashMap<usize, Value>) {
+    pub fn with_new_cache<T>(
+        &mut self,
+        f: impl FnOnce(&mut Self) -> T,
+    ) -> (T, HashMap<usize, Value>) {
         self.cache.push(HashMap::new());
         let ret = f(self);
         (ret, self.cache.pop().unwrap())
@@ -76,7 +79,7 @@ impl Env {
         self.args[self.args.len() - level - 1].clone()
     }
 
-    pub fn lookup_with(&self, symbol: &EcoString) -> Option<Value> {
+    pub fn lookup_with(&self, symbol: &str) -> Option<Value> {
         for with in self.with.iter().rev() {
             if let Some(ret) = with.get(symbol) {
                 return Some(ret.clone());