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refactor: 哈希表存储属性以支持无上限属性个数

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This commit is contained in:
爱特每羊队
2026-06-07 15:25:47 +08:00
parent 52fbd3c3d4
commit f6e635cdbe
19 changed files with 779 additions and 599 deletions
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crates/oxide_kernel/src/builtin.rs
+23 -10
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@@ -126,17 +126,23 @@ fn make_pair(
let proto_shape = shape_forge.make_shape(EMPTY_SHAPE_ID, si_constructor);
proto.set_shape_id(proto_shape);
proto.set_prop_count(1);
// proto shape: EMPTY -> "constructor" (slot 0)
let ctor_shape1 = shape_forge.make_shape(EMPTY_SHAPE_ID, si_prototype);
let ctor_shape2 = shape_forge.make_shape(ctor_shape1, si_name);
ctor.set_shape_id(ctor_shape2);
ctor.set_prop_count(2);
// ctor shape: EMPTY -> "prototype" (slot 0) -> "name" (slot 1)
ctor.set_function(true);
proto.set_inline_prop(0, JsValue::undefined());
ctor.set_inline_prop(0, JsValue::undefined());
ctor.set_inline_prop(1, JsValue::undefined());
// Pre-allocate Vec slots so wire_ctor_proto can overwrite vec[0] later.
// Proto: 1 property ("constructor"), Ctor: 2 properties ("prototype", "name").
proto
.ensure_hash_props()
.push(Box::new(JsValue::undefined())); // slot 0: "constructor" placeholder
ctor.ensure_hash_props()
.push(Box::new(JsValue::undefined())); // slot 0: "prototype" placeholder
ctor.ensure_hash_props()
.push(Box::new(JsValue::undefined())); // slot 1: "name" placeholder
(P::new(proto), P::new(ctor))
}
@@ -229,13 +235,22 @@ impl BuiltinWorld {
let math_object = P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null()));
/// Overwrite placeholder slots (set up by make_pair) with real values.
/// ctor.vec[0] = constructor.prototype -> proto
/// proto.vec[0] = proto.constructor -> ctor
fn wire_ctor_proto(ctor: &P<JsObject>, proto: &P<JsObject>) {
let ctor_ptr = ctor.as_ptr() as *mut JsObject;
let ctor = unsafe { &mut *ctor_ptr };
ctor.set_inline_prop(0, JsValue::from_js_object(proto.as_ptr() as *mut JsObject));
let vec = ctor.ensure_hash_props();
if !vec.is_empty() {
*vec[0] = JsValue::from_js_object(proto.as_ptr() as *mut JsObject);
}
let proto_ptr = proto.as_ptr() as *mut JsObject;
let proto = unsafe { &mut *proto_ptr };
proto.set_inline_prop(0, JsValue::from_js_object(ctor_ptr));
let pvec = proto.ensure_hash_props();
if !pvec.is_empty() {
*pvec[0] = JsValue::from_js_object(ctor_ptr);
}
}
wire_ctor_proto(&object_constructor, &object_proto);
@@ -735,11 +750,9 @@ impl BuiltinWorld {
wrapper.set_native_fn(Some(native_fn_ptr));
wrapper.set_native_arg_count(arg_count);
let wrapper_val = JsValue::from_js_object(Box::into_raw(wrapper));
let new_offset = proto.prop_count();
let new_shape = shape_forge.make_shape(proto.shape_id(), si);
proto.set_shape_id(new_shape);
proto.set_prop_count(new_offset + 1);
proto.set_prop_expand_heap(new_offset, wrapper_val);
proto.ensure_hash_props().push(Box::new(wrapper_val));
proto.bump_generation();
Ok(())
}