fix: TLA 游走器补 export 声明顶层 await 判定

Cargo.lock

@@ -1160,7 +1160,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_builtins"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "chrono",
  "fast-float",
@@ -1185,7 +1185,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_bytecode"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "num-bigint",
  "oxide_log",
@@ -1193,7 +1193,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_cfg"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_emit",
@@ -1204,7 +1204,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_cli"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "ansi_term",
  "bumpalo",
@@ -1228,7 +1228,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_code_cache"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "lru",
  "oxide_bytecode",
@@ -1237,7 +1237,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_compiler"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1258,7 +1258,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_dce"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1272,7 +1272,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_emit"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "num-bigint",
  "oxc_allocator",
@@ -1288,7 +1288,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_engine"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_compiler",
@@ -1300,7 +1300,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_fold"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "num-bigint",
  "oxide_bytecode",
@@ -1312,7 +1312,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_ir"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_log",
@@ -1321,7 +1321,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_kernel"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "bumpalo",
  "dashmap",
@@ -1335,7 +1335,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_liveness"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1347,7 +1347,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_log"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "tracing",
  "tracing-appender",
@@ -1356,11 +1356,11 @@ dependencies = [
 
 [[package]]
 name = "oxide_net"
-version = "0.18.6"
+version = "0.18.7"
 
 [[package]]
 name = "oxide_parser"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxc_allocator",
  "oxc_ast",
@@ -1375,7 +1375,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_regalloc"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_cfg",
@@ -1391,7 +1391,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_runtime_api"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "num-bigint",
  "num-traits",
@@ -1404,7 +1404,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_test262"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "oxide_bytecode",
  "oxide_compiler",
@@ -1424,7 +1424,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_types"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "bumpalo",
  "dashmap",
@@ -1437,7 +1437,7 @@ dependencies = [
 
 [[package]]
 name = "oxide_vm"
-version = "0.18.6"
+version = "0.18.7"
 dependencies = [
  "bumpalo",
  "chrono",

Cargo.toml

@@ -25,7 +25,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.18.6"
+version = "0.18.7"
 edition = "2021"
 license = "MIT"
 rust-version = "1.80"

crates/oxide_emit/src/module.rs

@@ -421,7 +421,23 @@ fn stmt_has_top_level_await(stmt: &Statement) -> bool {
             .any(|d| d.init.as_ref().is_some_and(|i| expr_has_top_level_await(i))),
         // 函数/类声明：体不进入（函数体是独立异步语义边界）。
         Statement::FunctionDeclaration(_) | Statement::ClassDeclaration(_) => false,
-        // import/export 与无子表达式的语句（break/continue/debugger/empty）不含顶层 await。
+        // `export const/let/var x = await ...` 是顶层 await；
+        // 函数/类声明形态不进入（体是独立异步语义边界，与裸声明臂同口径）。
+        Statement::ExportNamedDeclaration(exp) => {
+            exp.declaration.as_ref().is_some_and(|decl| match decl {
+                Declaration::VariableDeclaration(vd) => vd
+                    .declarations
+                    .iter()
+                    .any(|d| d.init.as_ref().is_some_and(|i| expr_has_top_level_await(i))),
+                _ => false,
+            })
+        }
+        // `export default await ...` 是顶层 await；函数/类声明形态不进入（同口径）。
+        Statement::ExportDefaultDeclaration(exp) => {
+            exp.declaration.as_expression().is_some_and(expr_has_top_level_await)
+        }
+        // import、`export *`、`export { x }`（无声明）与无子表达式的语句
+        // （break/continue/debugger/empty）不含顶层 await。
         _ => false,
     }
 }

crates/oxide_emit/tests/module_link_tests.rs

@@ -546,3 +546,42 @@ fn sync_dep_no_gate() {
     assert_eq!(native_calls_to(&ir, "__moduleWaitAll"), 0, "同步依赖不得发聚合 gate");
     assert_eq!(ir.insts.iter().filter(|i| i.op == OpCode::AWAIT).count(), 0, "主身不得含 AWAIT");
 }
+
+/// 面 25：`export const x = await ...`（ExportNamedDeclaration 带变量声明）是
+/// 顶层 await，模块标记异步、体 await 编译为 AWAIT。
+#[test]
+fn export_named_var_decl_await_makes_module_async() {
+    let (ir, _) = emit_module("export const x = await Promise.resolve(1);", "./entry.js", &[])
+        .expect("export const x = await 模块应编译成功");
+    assert!(ir.is_async, "export const x = await ... 应标记模块异步求值");
+    assert_eq!(
+        ir.insts.iter().filter(|i| i.op == OpCode::AWAIT).count(),
+        1,
+        "顶层 await 应编译为一条 AWAIT"
+    );
+}
+
+/// 面 26：`export default await ...`（ExportDefaultDeclaration 表达式形态）是
+/// 顶层 await，模块标记异步、体 await 编译为 AWAIT。
+#[test]
+fn export_default_await_makes_module_async() {
+    let (ir, _) = emit_module("export default await Promise.resolve(1);", "./entry.js", &[])
+        .expect("export default await 模块应编译成功");
+    assert!(ir.is_async, "export default await ... 应标记模块异步求值");
+    assert_eq!(
+        ir.insts.iter().filter(|i| i.op == OpCode::AWAIT).count(),
+        1,
+        "顶层 await 应编译为一条 AWAIT"
+    );
+}
+
+/// 面 27：`export const f = async () => {}`（导出声明初始化器为异步函数表达式）
+/// 不使模块异步——函数体是独立异步语义边界，不进入游走。
+#[test]
+fn export_named_async_fn_expr_not_tla() {
+    let (ir, _) =
+        emit_module("export const f = async () => { await Promise.resolve(1); };", "./entry.js", &[])
+            .expect("导出异步函数表达式模块应编译成功");
+    assert!(!ir.is_async, "异步函数表达式体不得使模块标记异步");
+    assert_eq!(ir.insts.iter().filter(|i| i.op == OpCode::AWAIT).count(), 0, "主身不得含 AWAIT");
+}