feat: less gc (WIP)

src/ty/internal/primop.rs

@@ -1,3 +1,5 @@
+use std::rc::Rc;
+
 use derive_more::Constructor;
 use gc_arena::Collect;
 use gc_arena::Mutation;
@@ -5,7 +7,6 @@ use gc_arena::Mutation;
 use crate::error::Result;
 use crate::vm::VM;
 
-use super::CoW;
 use super::Value;
 
 #[derive(Debug, Clone, Constructor, Collect)]
@@ -27,14 +28,13 @@ impl PrimOp {
         let mut args = Vec::with_capacity(self.arity);
         args.push(arg);
         if self.arity > 1 {
-            Value::PartialPrimOp(CoW::new(
+            Value::PartialPrimOp(Rc::new(
                 PartialPrimOp {
                     name: self.name,
                     arity: self.arity - 1,
                     args,
                     func: self.func,
                 },
-                mc,
             ))
             .ok()
         } else {
@@ -67,13 +67,14 @@ impl PartialEq for PartialPrimOp<'_> {
 
 impl<'gc> PartialPrimOp<'gc> {
     pub fn call(
-        self: &mut CoW<'gc, Self>,
+        self: &mut Rc<Self>,
         arg: Value<'gc>,
         vm: &VM,
         mc: &Mutation<'gc>,
     ) -> Result<Value<'gc>> {
         let func = self.func;
-        let Some(ret) = self.make_mut(|self_mut| {
+        let Some(ret) = ({
+            let self_mut = Rc::make_mut(self);
             self_mut.args.push(arg);
             self_mut.arity -= 1;
             if self_mut.arity == 0 {
@@ -81,7 +82,7 @@ impl<'gc> PartialPrimOp<'gc> {
             } else {
                 None
             }
-        }, mc) else {
+        }) else {
             return Value::PartialPrimOp(self.clone()).ok();
         };
         ret