perf: String() 有限 double 转串加 16 槽 last-value 缓存

2026-10-26 11:41:13 +08:00 · 2026-10-05 07:36:12 +00:00
parent 1dc9f41618
commit bfbab9431a
9 changed files with 145 additions and 21 deletions
@@ -76,6 +76,12 @@ impl Vm {
        for &cached in self.template_objects.values() {
            f(cached);
        }
+        // f64→string 缓存槽值是 session 串，是 GC 根（漏根 → 串清扫释放 → 命中悬垂）。
+        for &v in &self.number_to_string_cache_vals {
+            if v.is_string() {
+                f(v);
+            }
+        }
        for &entry in &self.iters.for_of_iters {
            f(entry.iterator);
            f(entry.last_result);