From be91604feff1b5b89c54f1c9d3179f16765f8f6f Mon Sep 17 00:00:00 2001
From: pjh456 <147148383@qq.com>
Date: Thu, 6 Aug 2026 14:29:04 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20upvalue=5Fcaptures=20=E6=8C=89=E5=90=8D?=
 =?UTF-8?q?=E5=AD=97=E6=8E=92=E5=BA=8F=EF=BC=8C=E4=BF=AE=E5=A4=8D=20HashSe?=
 =?UTF-8?q?t=20=E9=9D=9E=E7=A1=AE=E5=AE=9A=E9=A1=BA=E5=BA=8F=E8=87=B4=20LO?=
 =?UTF-8?q?AD=5FUPVALUE=20=E9=94=99=E4=BD=8D?=
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---
 crates/oxide_emit/src/closure.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/crates/oxide_emit/src/closure.rs b/crates/oxide_emit/src/closure.rs
index b0c50fd4..9c5071b5 100644
--- a/crates/oxide_emit/src/closure.rs
+++ b/crates/oxide_emit/src/closure.rs
@@ -508,6 +508,12 @@ impl Emitter {
         let parent_names: HashSet<String> = parent_captured.keys().cloned().collect();
         let mut names = HashSet::new();
         self.collect_capture_names_shadowed(body_stmts, &parent_names, sub_own, &mut names);
+        // HashSet 迭代序带随机种子（进程级非确定），必须排序使 upvalue_captures 的顺序与
+        // 父 captured_bindings 的 cell_idx（BTreeMap 名字序）对齐——否则 uv_idx（identifier.rs
+        // LOAD_UPVALUE 的 a 槽编码）与 cell_idx 错位，读错 upvalue（hoisted_function_reads_outer_var_and_function
+        // 抖动根因）。
+        let mut names: Vec<String> = names.into_iter().collect();
+        names.sort();
         names
             .into_iter()
             .map(|name| {