feat: Symbol.hasInstance 支持 instanceof 双路径分派

2026-06-27 22:53:04 +08:00
parent db8aa7025e
commit 9da0ded18d
5 changed files with 86 additions and 2 deletions
@@ -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);