feat: 内核与内置层增 Atomics 对象槽位与十方法

crates/oxide_kernel/src/kernel/builtin_id.rs

@@ -11,7 +11,7 @@ use crate::builtin::BuiltinWorld;
 /// 维护注意：每个新增的 `BuiltinWorld` 对象字段都必须加到这里以及
 /// `KernelSession::dirty_since_snapshot()`，以便选择性重置重建正确的
 /// builtin 家族。
-pub const NUM_BUILTINS: usize = 96;
+pub const NUM_BUILTINS: usize = 97;
 
 /// 内置对象枚举 id，与 `BuiltinWorld` 中的存储槽一一对应。
 ///
@@ -117,6 +117,7 @@ pub enum BuiltinId {
     PlainYearMonthProto = 93,
     SharedArrayBufferProto = 94,
     SharedArrayBufferConstructor = 95,
+    AtomicsObject = 96,
 }
 
 impl BuiltinId {
@@ -220,6 +221,7 @@ impl BuiltinId {
         BuiltinId::PlainYearMonthProto,
         BuiltinId::SharedArrayBufferProto,
         BuiltinId::SharedArrayBufferConstructor,
+        BuiltinId::AtomicsObject,
     ];
 }
 
@@ -288,6 +290,7 @@ pub struct BuiltinDirtySet {
     pub regexp: bool,
     pub array_buffer: bool,
     pub shared_array_buffer: bool,
+    pub atomics: bool,
     pub data_view: bool,
     pub typed_array_family: bool,
     pub temporal: bool,
@@ -320,6 +323,7 @@ impl BuiltinDirtySet {
             regexp: true,
             array_buffer: true,
             shared_array_buffer: true,
+            atomics: true,
             data_view: true,
             typed_array_family: true,
             temporal: true,
@@ -347,6 +351,7 @@ impl BuiltinDirtySet {
             || self.regexp
             || self.array_buffer
             || self.shared_array_buffer
+            || self.atomics
             || self.data_view
             || self.typed_array_family
             || self.temporal
@@ -364,18 +369,19 @@ impl BuiltinDirtySet {
 mod tests {
     use super::*;
 
-    /// 槽对齐面：表尾追加 SAB 家族后总槽数 96，既有 94 个判别值零位移，
+    /// 槽对齐面：表尾追加 Atomics 单例后总槽数 97，既有 96 个判别值零位移，
     /// 快照数组随 NUM_BUILTINS 自动扩维、逐槽对齐。
     #[test]
     fn builtin_snapshot_all_slots_aligned() {
-        assert_eq!(NUM_BUILTINS, 96);
+        assert_eq!(NUM_BUILTINS, 97);
         assert_eq!(BuiltinId::ALL.len(), NUM_BUILTINS);
-        // 前 94 项判别值 0-93 逐项不变（尾追加零位移）。
-        for i in 0..94usize {
+        // 前 96 项判别值 0-95 逐项不变（尾追加零位移）。
+        for i in 0..96usize {
             assert_eq!(BuiltinId::ALL[i] as usize, i);
         }
         assert_eq!(BuiltinId::ALL[94], BuiltinId::SharedArrayBufferProto);
         assert_eq!(BuiltinId::ALL[95], BuiltinId::SharedArrayBufferConstructor);
+        assert_eq!(BuiltinId::ALL[96], BuiltinId::AtomicsObject);
 
         // 快照经 session 全量构造路径采集，generations 数组维度 = 槽数。
         use crate::kernel::{KernelConfig, KernelCore, KernelSession};

crates/oxide_kernel/src/kernel/session.rs

@@ -159,6 +159,7 @@ impl KernelSession {
                 || gen(BuiltinId::ArrayBufferProto) != snap(BuiltinId::ArrayBufferProto),
             shared_array_buffer: gen(BuiltinId::SharedArrayBufferProto) != snap(BuiltinId::SharedArrayBufferProto)
                 || gen(BuiltinId::SharedArrayBufferConstructor) != snap(BuiltinId::SharedArrayBufferConstructor),
+            atomics: gen(BuiltinId::AtomicsObject) != snap(BuiltinId::AtomicsObject),
             data_view: gen(BuiltinId::DataViewConstructor) != snap(BuiltinId::DataViewConstructor)
                 || gen(BuiltinId::DataViewProto) != snap(BuiltinId::DataViewProto),
             typed_array_family: gen(BuiltinId::TypedArrayProto) != snap(BuiltinId::TypedArrayProto)