diff --git a/examples/project/ext.cc b/examples/project/ext.cc
index 76e0f990..71df61d0 100644
--- a/examples/project/ext.cc
+++ b/examples/project/ext.cc
@@ -1,4 +1,5 @@
 #include <phpx.h>
+#include <iostream>
 #include "phpx_func.h"
 
 using namespace php;
@@ -9,3 +10,15 @@ Int php_fn_test(Int a, Int b) {
     var_dump(php_uname());
     return c;
 }
+
+static php::Str prop_base {ZEND_STRL("base"), true};
+
+void php_foo____construct(php::Object& this_, php::Int value) {
+    std::cout << "hashCode: " << prop_base.str()->h << "\n";
+    this_.setProperty(prop_base, value);
+}
+
+php::Int php_foo__bar(php::Object &this_, php::Int a, php::Int b) {
+    std::cout << "hashCode: " << prop_base.str()->h << "\n";
+    return this_.getProperty(prop_base).toInt() + a + b;
+}
\ No newline at end of file
diff --git a/examples/project/ext.stub.php b/examples/project/ext.stub.php
index bc4e03a1..54d1f996 100644
--- a/examples/project/ext.stub.php
+++ b/examples/project/ext.stub.php
@@ -1,4 +1,14 @@
 <?php
 function fn_test(int $a, int $b): int
 {
+}
+
+class Foo {
+    public int $base = 0;
+    public function __construct(int $base)
+    {
+    }
+    public function bar(int $a, int $b): int
+    {
+    }
 }
\ No newline at end of file
diff --git a/examples/project/main.php b/examples/project/main.php
index 87da44b1..b48ba5a8 100644
--- a/examples/project/main.php
+++ b/examples/project/main.php
@@ -1,5 +1,5 @@
 <?php
-function main($argc, array $argv)
+function main(int $argc, array $argv)
 {
     var_dump($argc, $argv);
     fn1();
@@ -9,4 +9,8 @@ function main($argc, array $argv)
         echo $r;
     }
     var_dump(gettype($rs));
+
+    var_dump("c++ class:");
+    $o = new Foo(1000);
+    var_dump($o->bar(123, 342));
 }
\ No newline at end of file
diff --git a/src/Php/CompilerBase.php b/src/Php/CompilerBase.php
index 4f5ec4dd..75c5ed4d 100644
--- a/src/Php/CompilerBase.php
+++ b/src/Php/CompilerBase.php
@@ -804,8 +804,12 @@ class CompilerBase extends \PhpAot\Core\Translator
     protected function parseFunctionDecl(Node\Stmt\Function_|Node\Stmt\ClassMethod $v): FunctionDef
     {
         // .stub 存根定义 C++ Native 函数，必须设置返回值类型
-        if (!$v->returnType && $this->stubFile) {
-            $this->fatalError($v, 'The return type of the function `' . $v->name . '` must be specified');
+        if ($this->stubFile and !$v->returnType) {
+            // 以下魔术方法都不能声明返回值类型 __construct()/__destruct()/__clone()
+            if (($this->method and !in_array($this->method, ['__construct', '__destruct', '__clone'])) or !$this->method) {
+                $name = $this->class ? $this->class . '::' . $v->name : $v->name;
+                $this->fatalError($v, 'The return type of the function `' . $name . '` must be specified');
+            }
         }
         // 返回值不能是引用类型
         if ($v->byRef) {
@@ -814,7 +818,7 @@ class CompilerBase extends \PhpAot\Core\Translator
 
         $fnName = $this->parseIdentifier($v->name);
         $returnType = $this->parseTypeDecl($v->returnType, self::DECL_TYPE_OF_RETURN);
-        $functionDef = new FunctionDef($fnName, $returnType, $this->namespace);
+        $functionDef = new FunctionDef($fnName, $returnType, $this->namespace, $this->stubFile);
         $this->functionDef = $functionDef;
 
         $this->parseParams($v->params, $functionDef);
@@ -828,10 +832,10 @@ class CompilerBase extends \PhpAot\Core\Translator
                 if ($returnType !== self::TYPE_VOID) {
                     $this->fatalError($v, 'main function must return void');
                 }
-                if ($this->checkArgType($functionDef->argInfoList[0]->type, self::TYPE_INT)) {
+                if (!$this->checkArgType($functionDef->argInfoList[0]->type, self::TYPE_INT)) {
                     $this->fatalError($v, 'The first parameter of the main function must be of type `int`.');
                 }
-                if ($this->checkArgType($functionDef->argInfoList[1]->type, self::TYPE_ARRAY)) {
+                if (!$this->checkArgType($functionDef->argInfoList[1]->type, self::TYPE_ARRAY)) {
                     $this->fatalError($v, 'The second parameter of the main function must be of type `array`.');
                 }
             }
@@ -861,7 +865,6 @@ class CompilerBase extends \PhpAot\Core\Translator
 
         // 类方法不要保存到 functions 中
         if ($this->class) {
-            $this->addArgument('this_', self::TYPE_OBJECT);
             if ($this->methodDef) {
                 $this->functionDef->method = true;
                 $this->methodDef->functionDef = $this->functionDef;
@@ -870,6 +873,15 @@ class CompilerBase extends \PhpAot\Core\Translator
             $this->functionDefineInFile[$name] = $this->functionDef;
         }
 
+        // stub 函数，没有函数的具体实现，只有声明，实现在 C++ 或者 .so 中定义
+        if ($this->functionDef->stub) {
+            $this->resetFunction();
+            return '';
+        }
+
+        if ($this->class) {
+            $this->addArgument('this_', self::TYPE_OBJECT);
+        }
         foreach ($this->functionDef->argInfoList as $argInfo) {
             $this->addArgument($argInfo->name, $argInfo->type);
         }
diff --git a/src/Php/Entity/FunctionDef.php b/src/Php/Entity/FunctionDef.php
index b596b61c..55f33d1e 100644
--- a/src/Php/Entity/FunctionDef.php
+++ b/src/Php/Entity/FunctionDef.php
@@ -21,15 +21,17 @@ class FunctionDef
     public array $argInfoList = [];
     public int $argCountRequired = 0;
     public string $params = '';
-    public string $namespace = '';
+    public string $namespace;
     public bool $method = false;
+    public bool $stub = false;
     public bool $completed = false;
 
-    public function __construct(string $name, string $returnType, string $namespace = '')
+    public function __construct(string $name, string $returnType, string $namespace, bool $stub)
     {
-        $this->name       = $name;
+        $this->name = $name;
         $this->returnType = $returnType;
-        $this->namespace  = $namespace;
+        $this->namespace = $namespace;
+        $this->stub = $stub;
     }
 
     public function getNamespacedName(): string
diff --git a/src/Php/Preprocessor.php b/src/Php/Preprocessor.php
index 3689c70a..27a3b38f 100644
--- a/src/Php/Preprocessor.php
+++ b/src/Php/Preprocessor.php
@@ -266,6 +266,7 @@ class Preprocessor extends CompilerBase
 
     protected function prepareMethod(Node\Stmt\ClassMethod $v, Node\Stmt\Class_|Node\Stmt\Trait_|Node\Stmt\Enum_ $class): void
     {
+        $this->method = $v->name;
         $abstract = $v->flags & Modifiers::ABSTRACT;
         if (!$abstract) {
             $this->prepareFunction($v) . PHP_EOL;
@@ -276,7 +277,7 @@ class Preprocessor extends CompilerBase
         }
 
         $fullClassName = $this->getFullClassName();
-        $fullMethodName = $fullClassName . '::' . $v->name;
+        $fullMethodName = $fullClassName . '::' . $this->method;
         $this->classMethodOverride[strtolower($fullMethodName)] = false;
         // 查找父类是否有同名方法，递归查找
         $fullClassNameLower = strtolower($fullClassName);