feat: Symbol.hasInstance 支持 instanceof 双路径分派

crates/oxide_kernel/src/builtin.rs

@@ -221,6 +221,7 @@ pub struct BuiltinWorld {
     pub sym_split: P<JsObject>,
     pub sym_iterator: P<JsObject>,
     pub sym_to_primitive: P<JsObject>,
+    pub sym_has_instance: P<JsObject>,
     pub stub_objects: Vec<P<JsObject>>,
 }
 
@@ -544,6 +545,7 @@ impl BuiltinWorld {
             BuiltinId::SymSplit => &self.sym_split,
             BuiltinId::SymIterator => &self.sym_iterator,
             BuiltinId::SymToPrimitive => &self.sym_to_primitive,
+            BuiltinId::SymHasInstance => &self.sym_has_instance,
         }
     }
 
@@ -580,6 +582,7 @@ impl BuiltinWorld {
         let sym_split = P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null()));
         let sym_iterator = P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null()));
         let sym_to_primitive = P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null()));
+        let sym_has_instance = P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null()));
         let stub_objects = Vec::new();
 
         let world = Self {
@@ -648,6 +651,7 @@ impl BuiltinWorld {
             sym_split,
             sym_iterator,
             sym_to_primitive,
+            sym_has_instance,
             stub_objects,
         };
         wire_builtin_world_links(&world);
@@ -717,6 +721,7 @@ impl BuiltinWorld {
             sym_split,
             sym_iterator,
             sym_to_primitive,
+            sym_has_instance,
         ) = if dirty.symbol_family {
             let (symbol_proto, symbol_constructor) = make_named_pair(string_forge, shape_forge, labels, "Symbol");
             (
@@ -728,6 +733,7 @@ impl BuiltinWorld {
                 P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null())),
                 P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null())),
                 P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null())),
+                P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null())),
             )
         } else {
             (
@@ -739,6 +745,7 @@ impl BuiltinWorld {
                 current.sym_split.clone(),
                 current.sym_iterator.clone(),
                 current.sym_to_primitive.clone(),
+                current.sym_has_instance.clone(),
             )
         };
 
@@ -879,6 +886,7 @@ impl BuiltinWorld {
             sym_split,
             sym_iterator,
             sym_to_primitive,
+            sym_has_instance,
             stub_objects,
         };
         wire_builtin_world_links(&world);

crates/oxide_kernel/src/kernel.rs

@@ -201,7 +201,7 @@ pub struct KernelSession {
 /// Maintenance: every new `BuiltinWorld` object field must be added here and to
 /// `KernelSession::dirty_since_snapshot()` so selective reset can rebuild the
 /// correct builtin family.
-pub const NUM_BUILTINS: usize = 65;
+pub const NUM_BUILTINS: usize = 66;
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 #[repr(u8)]
@@ -271,6 +271,7 @@ pub enum BuiltinId {
     SymSplit = 62,
     SymIterator = 63,
     SymToPrimitive = 64,
+    SymHasInstance = 65,
 }
 
 impl BuiltinId {
@@ -340,6 +341,7 @@ impl BuiltinId {
         BuiltinId::SymSplit,
         BuiltinId::SymIterator,
         BuiltinId::SymToPrimitive,
+        BuiltinId::SymHasInstance,
     ];
 }
 
@@ -509,7 +511,8 @@ impl KernelSession {
                 || gen(BuiltinId::SymSearch) != snap(BuiltinId::SymSearch)
                 || gen(BuiltinId::SymSplit) != snap(BuiltinId::SymSplit)
                 || gen(BuiltinId::SymIterator) != snap(BuiltinId::SymIterator)
-                || gen(BuiltinId::SymToPrimitive) != snap(BuiltinId::SymToPrimitive),
+                || gen(BuiltinId::SymToPrimitive) != snap(BuiltinId::SymToPrimitive)
+                || gen(BuiltinId::SymHasInstance) != snap(BuiltinId::SymHasInstance),
             math: gen(BuiltinId::MathObject) != snap(BuiltinId::MathObject),
             json: gen(BuiltinId::JsonObject) != snap(BuiltinId::JsonObject),
             date: gen(BuiltinId::DateConstructor) != snap(BuiltinId::DateConstructor)