feat: ref

src/bytecode.rs

@@ -1,6 +1,6 @@
 use ecow::EcoString;
 
-use crate::ty::internal::{Const, Func};
+use crate::ty::internal::{Const, Param};
 
 type Slice<T> = Box<[T]>;
 
@@ -94,6 +94,12 @@ pub enum UnOp {
     Not,
 }
 
+#[derive(Debug)]
+pub struct Func {
+    pub param: Param,
+    pub opcodes: OpCodes,
+}
+
 #[derive(Debug)]
 pub struct Program {
     pub top_level: OpCodes,