3 files changed, 48 insertions, 12 deletions

diff --git a/spec/inputs/unicode/macro.yue b/spec/inputs/unicode/macro.yue
index 50656ae..79d3c07 100644
--- a/spec/inputs/unicode/macro.yue
+++ b/spec/inputs/unicode/macro.yue
@@ -201,6 +201,7 @@ $链式调用(
         选择可见!
         标签等于 "fx"
         其中 (x)-> x.名称\结尾为 "(克隆)"
+        摧毁!
 )
 
 macro 链式调用B = (...)->
diff --git a/spec/outputs/unicode/macro.lua b/spec/outputs/unicode/macro.lua
index 986ff32..b4e78cd 100644
--- a/spec/outputs/unicode/macro.lua
+++ b/spec/outputs/unicode/macro.lua
@@ -273,19 +273,22 @@ local _call_1 = ((function()
         local _call_1 = ((function()
                 local _call_1 = ((function()
                         local _call_1 = ((function()
-                                local _call_1 = (_anon_func_2(_u539f_u70b9))
-                                return _call_1["后代"](_call_1)
+                                local _call_1 = ((function()
+                                        local _call_1 = (_anon_func_2(_u539f_u70b9))
+                                        return _call_1["后代"](_call_1)
+                                end)())
+                                return _call_1["选择启用"](_call_1)
                         end)())
-                        return _call_1["选择���用"](_call_1)
+                        return _call_1["选择���见"](_call_1)
                 end)())
-                return _call_1["选���可见"](_call_1)
+                return _call_1["���签等于"](_call_1, "fx")
         end)())
-        return _call_1["标签等于"](_call_1, "fx")
+        return _call_1["其中"](_call_1, function(x)
+                local _call_2 = x["名称"]
+                return _call_2["结尾为"](_call_2, "(克隆)")
+        end)
 end)())
-_u7ed3_u679c = _call_1["其中"](_call_1, function(x)
-        local _call_2 = x["名称"]
-        return _call_2["结尾为"](_call_2, "(克隆)")
-end)
+_u7ed3_u679c = _call_1["摧毁"](_call_1)
 do
         do
                 local _1
@@ -343,7 +346,7 @@ _u6253_u5370((setmetatable({
                 return 998
         end
 }))
-_u6253_u5370("当前代码行数: " .. tostring(267))
+_u6253_u5370("当前代码行数: " .. tostring(268))
 do
         do
 -- 待实现
diff --git a/src/yue.cpp b/src/yue.cpp
index fc57767..2c3a469 100644
--- a/src/yue.cpp
+++ b/src/yue.cpp
@@ -30,6 +30,38 @@ using namespace std::chrono_literals;
 #include "ghc/fs_std.hpp"
 #include "linenoise.hpp"
 
+#if __has_include(<pthread.h>)
+#include <pthread.h>
+template<class R>
+std::future<R> async(const std::function<R()>& f) {
+        using Fn = std::packaged_task<R()>;
+        auto task = new Fn(f);
+        std::future<R> fut = task->get_future();
+
+        pthread_attr_t attr;
+        pthread_attr_init(&attr);
+        pthread_attr_setstacksize(&attr, 8 * 1024 * 1024);
+
+        pthread_t th;
+        pthread_create(&th, &attr,
+                [](void* p)->void* {
+                        std::unique_ptr<Fn> fn(static_cast<Fn*>(p));
+                        (*fn)();
+                        return nullptr;
+                },
+        task);
+        pthread_attr_destroy(&attr);
+        pthread_detach(th);
+        return fut;
+}
+#else
+template<class R>
+std::future<R> async(const std::function<R()>& f) {
+    // fallback: ignore stack size
+    return std::async(std::launch::async, f);
+}
+#endif
+
 #if not(defined YUE_NO_MACRO && defined YUE_COMPILER_ONLY)
 #define _DEFER(code, line) std::shared_ptr<void> _defer_##line(nullptr, [&](auto) { \
         code; \
@@ -699,7 +731,7 @@ int main(int narg, const char** args) {
                 }
                 std::list<std::future<std::string>> results;
                 for (const auto& file : files) {
-                        auto task = std::async(std::launch::async, [=]() {
+                        auto task = async<std::string>([=]() {
 #ifndef YUE_COMPILER_ONLY
                                 return compileFile(fs::absolute(file.first), config, fullWorkPath, fullTargetPath, minify, rewrite);
 #else
@@ -737,7 +769,7 @@ int main(int narg, const char** args) {
 #endif // YUE_NO_WATCHER
         std::list<std::future<std::tuple<int, std::string, std::string>>> results;
         for (const auto& file : files) {
-                auto task = std::async(std::launch::async, [=]() {
+                auto task = async<std::tuple<int, std::string, std::string>>([=]() {
                         std::ifstream input(file.first, std::ios::in);
                         if (input) {
                                 std::string s(