fix(closure): 修复闭包生成器中的变量捕获逻辑

- 修正 ClosureGenerator.php 中的变量捕获操作符，从值传递改为引用传递
- 更新 ConstantDef 类构造函数以支持数组表达式存储
- 修改模板文件中的类定义检查逻辑，使用 empty 函数替代布尔判断
- 重构类常量生成方法，将 genUpdateClassConstants 重命名为 genClassArrayConstants
- 添加 php_get_create_object_fn 辅助函数以正确获取对象创建函数
- 优化类常量定义解析，支持数组类型的常量表达式处理

src/Php/Entity/ConstantDef.php

@@ -8,18 +8,22 @@
 
 namespace PhpAot\Php\Entity;
 
+use PhpParser\Node\Expr;
+
 class ConstantDef
 {
     public string $name;
     public string $type;
     public string $flags;
     public string $value;
+    public string $arrayExpr;
 
-    public function __construct(string $name, string $flags, string $type, string $value)
+    public function __construct(string $name, string $flags, string $type, string $value, string $arrayExpr = '')
     {
         $this->name  = $name;
         $this->type  = $type;
         $this->flags = $flags;
         $this->value = $value;
+        $this->arrayExpr  = $arrayExpr;
     }
 }

src/Php/Generator/ClosureGenerator.php

@@ -29,7 +29,7 @@ trait ClosureGenerator
         $tmpVar = $this->genTmpVarName();
         // 必须使用 = 捕获，不能使用 & ，否则可能会出现悬空指针
         // 在 PHP 中 = 赋值是浅拷贝，仅增加一次引用计数，和 zval (16 字节) 封装的赋值
-        $capture = $useCurrentScope ? '=' : '';
+        $capture = $useCurrentScope ? '&' : '';
 
         $code = $this->getIndent() .
             'php::ClosureFn ' . $tmpVar . ' = [' . $capture . ']('

src/Php/Translator.php

@@ -419,6 +419,7 @@ class Translator extends Preprocessor
     {
         $code = '#include <phpx.h>' . PHP_EOL;
 
+        // 函数的默认值可能会使用字符串字面量，需要提前声明
         $literalStringsCount = count($this->literalStrings);
         $code .= 'extern ' . self::TYPE_STR . ' ' . self::LITERAL_STRINGS . '[' . $literalStringsCount . '];' . PHP_EOL;
 
@@ -526,14 +527,17 @@ class Translator extends Preprocessor
         return $scanner->scan();
     }
 
-    protected function genUpdateClassConstants(): string
+    protected function genClassArrayConstants(): string
     {
         $code = '';
         foreach ($this->classes as $classDef) {
             foreach ($classDef->constants as $constant) {
                 if ($constant->type === self::TYPE_ARRAY) {
                     $constName = self::PREFIX . $this->getNativeName($constant->name, $classDef->namespace, $classDef->name);
+                    $code .= "do {\n";
+                    $code .= $constant->arrayExpr;
                     $code .= $constName . " = " . $constant->value . ";\n";
+                    $code .= "} while(0);\n";
                 }
             }
         }
@@ -1061,6 +1065,7 @@ class Translator extends Preprocessor
 
     protected function parseClassConstDef(Node\Stmt\ClassConst $v): void
     {
+        $this->resetFunction();
         $flags = $v->flags;
         if ($v->type) {
             $type = $this->parseTypeDecl($v->type, self::DECL_TYPE_OF_CONST);
@@ -1076,7 +1081,15 @@ class Translator extends Preprocessor
                 };
             }
             $constName = $this->parseIdentifier($const->name);
-            $constInfo = new ConstantDef($constName, $flags, $type, $this->parseIdentifier($const->value));
+            $constValue = $this->parseIdentifier($const->value);
+            $arrayExpr = '';
+            if ($this->context->beforeStmtLines) {
+                if ($this->context->localVars) {
+                    $arrayExpr .= $this->genLocalVarDecl();
+                }
+                $arrayExpr .= $this->parseBeforeStmtLines();
+            }
+            $constInfo = new ConstantDef($constName, $flags, $type, $constValue, $arrayExpr);
             $this->classDef->constants[$constInfo->name] = $constInfo;
         }
     }

src/cpp/php_aot_helper.h

@@ -19,3 +19,7 @@ extern const char *php_get_called_class(php::Object &this_);
 extern zend_class_entry *php_get_called_ce(php::Object &this_);
 extern php::Scope php_switch_scope(php::Object &this_);
 extern void php_restore_scope(php::Scope &ori_scope);
+
+static inline auto php_get_create_object_fn(zend_class_entry *ce) {
+	return ce->create_object ? ce->create_object : zend_objects_new;
+}

src/template/extension.cc.php

@@ -123,10 +123,10 @@ foreach ($this->classCeList as $ce):
 ?>
     <?=$ce?> = <?= $info['func'] ?>(<?= $info['args'] ?>);
 <?php
-    if ($info['classDef'] and $info['classDef']->requireCtor):
+    if (!empty($info['classDef']) and $info['classDef']->requireCtor):
         $className = $info['classDef']->getNamespacedName();
 ?>
-    create_object_<?=$className?> = <?=$ce?>->create_object ? create_object_<?=$className?> : zend_objects_new;
+    create_object_<?=$className?> = php_get_create_object_fn(<?=$ce?>);
     <?=$ce?>->create_object = [](zend_class_entry *class_type) -> zend_object* {
         auto obj = create_object_<?= $className ?>(class_type);
         <?php foreach ($info['classDef']->properties as $property):
@@ -178,7 +178,7 @@ endforeach;
 ?>
 
     // class array constants
-    <?=$this->genUpdateClassConstants();?>
+    <?=$this->genClassArrayConstants();?>
 }
 
 void php_app_clean() {