feat: ir env (WIP)

src/stack.rs

@@ -16,7 +16,7 @@ macro_rules! into {
 }
 
 pub struct Stack<T, const CAP: usize> {
-    items: [MaybeUninit<T>; CAP],
+    items: Box<[MaybeUninit<T>; CAP]>,
     top: usize,
 }
 
@@ -37,7 +37,11 @@ impl<T, const CAP: usize> Default for Stack<T, CAP> {
 impl<T, const CAP: usize> Stack<T, CAP> {
     pub fn new() -> Self {
         Stack {
-            items: [const { MaybeUninit::uninit() }; CAP],
+            items: unsafe {
+                std::mem::transmute::<Box<MaybeUninit<[T; CAP]>>, Box<[MaybeUninit<T>; CAP]>>(
+                    Box::new_uninit(),
+                )
+            },
             top: 0,
         }
     }