refactor: 扁平化对象属性存储并优化常量池与 IC 热路径

crates/oxide_vm/src/builtins/error.rs

@@ -118,12 +118,12 @@ pub fn error_to_string(vm: &mut Vm, args: &[u8]) -> NativeResult {
         let name_val = obj
             .hash_props_vec()
             .and_then(|v| v.first())
-            .map(|b| **b)
+            .copied()
             .unwrap_or(JsValue::undefined());
         let msg_val = obj
             .hash_props_vec()
             .and_then(|v| v.get(1))
-            .map(|b| **b)
+            .copied()
             .unwrap_or(JsValue::undefined());
         (
             vm.lookup_str(name_val).unwrap_or_else(|| "Error".to_string()),

crates/oxide_vm/src/builtins/function.rs

@@ -19,11 +19,11 @@ fn bind_dispatcher(vm: &mut Vm, args: &[u8]) -> NativeResult {
     let wrapper = unsafe { &*wrapper_val.as_js_object_ptr() };
     let bound_target = wrapper
         .hash_props_vec()
-        .and_then(|v| v.first().map(|b| **b))
+        .and_then(|v| v.first().copied())
         .unwrap_or(JsValue::undefined());
     let bound_this = wrapper
         .hash_props_vec()
-        .and_then(|v| v.get(1).map(|b| **b))
+        .and_then(|v| v.get(1).copied())
         .unwrap_or(JsValue::undefined());
 
     // Forward bound call arguments (skip args[0], the bound-wrapper receiver).
@@ -63,7 +63,7 @@ pub fn function_apply(vm: &mut Vm, args: &[u8]) -> NativeResult {
                     for i in 0..n {
                         let vec = arr.hash_props_vec();
                         if let Some(v) = vec.and_then(|v| v.get(i)) {
-                            vm.set_reg(base + i as u8, **v);
+                            vm.set_reg(base + i as u8, *v);
                         }
                     }
                 } else {
@@ -97,8 +97,8 @@ pub fn function_bind(vm: &mut Vm, args: &[u8]) -> NativeResult {
         // SAFETY: bind_dispatcher is a NativeFn fn-item; valid to store as NativeFnPtr.
         (*wrapper).set_native_fn(Some(NativeFnPtr::from_raw(bind_dispatcher as *const ())));
         (*wrapper).set_native_arg_count(0);
-        (*wrapper).ensure_hash_props().push(Box::new(target_val));
-        (*wrapper).ensure_hash_props().push(Box::new(bound_this));
+        (*wrapper).ensure_hash_props().push(target_val);
+        (*wrapper).ensure_hash_props().push(bound_this);
     }
 
     NativeResult::Ok(JsValue::from_js_object(wrapper))

crates/oxide_vm/src/builtins/json.rs

@@ -70,7 +70,7 @@ fn value_to_jsvalue(vm: &mut Vm, val: &serde_json::Value) -> JsValue {
                 let jsv = value_to_jsvalue(vm, val);
                 let new_shape = vm.kernel().shape_forge().make_shape(obj.shape_id(), si);
                 obj.set_shape_id(new_shape);
-                obj.ensure_hash_props().push(Box::new(jsv));
+                obj.ensure_hash_props().push(jsv);
             }
             let obj_ptr = vm.epoch().alloc(obj);
             JsValue::from_js_object(obj_ptr)

crates/oxide_vm/src/builtins/regexp.rs

@@ -43,13 +43,13 @@ fn set_prop(obj: &mut JsObject, name: &str, val: JsValue, vm: &Vm) {
     let si = vm.kernel().string_forge().intern(name).0;
     let shape_id = vm.kernel().shape_forge().make_shape(obj.shape_id(), si);
     obj.set_shape_id(shape_id);
-    obj.ensure_hash_props().push(Box::new(val));
+    obj.ensure_hash_props().push(val);
 }
 
 fn get_prop(obj: &JsObject, idx: usize) -> JsValue {
     obj.hash_props_vec()
         .and_then(|v| v.get(idx))
-        .map(|b| **b)
+        .copied()
         .unwrap_or(JsValue::undefined())
 }
 
@@ -57,9 +57,9 @@ fn set_prop_at(obj: *mut JsObject, idx: usize, val: JsValue) {
     unsafe {
         let re = &mut *obj;
         if let Some(vec) = re.hash_props_vec() {
-            let ptr = vec.as_ptr() as *mut Box<JsValue>;
+            let ptr = vec.as_ptr() as *mut JsValue;
             let v = &mut *ptr.add(idx);
-            **v = val;
+            *v = val;
         }
     }
 }
@@ -201,14 +201,14 @@ pub fn regexp_exec(vm: &mut Vm, args: &[u8]) -> NativeResult {
 
         let full_match = &haystack[m.start()..m.end()];
         let full_si = vm.kernel().string_forge().intern(full_match).0;
-        match_obj.ensure_hash_props().push(Box::new(JsValue::string(full_si, 0)));
+        match_obj.ensure_hash_props().push(JsValue::string(full_si, 0));
 
         let captures = regex.captures(&haystack[m.start()..m.end()]);
         if let Some(caps) = &captures {
             for i in 1..caps.len() {
                 let cap_str = caps.get(i).map(|cm| cm.as_str()).unwrap_or("");
                 let si = vm.kernel().string_forge().intern(cap_str).0;
-                match_obj.ensure_hash_props().push(Box::new(JsValue::string(si, 0)));
+                match_obj.ensure_hash_props().push(JsValue::string(si, 0));
             }
         }