feat(php): 添加对箭头函数和接口声明的支持

- 实现了箭头函数语法解析和C++代码生成
- 在编译器基础类中添加了对Expr_ArrowFunction节点类型的处理
- 新增parseArrowFunction方法用于处理箭头函数的参数和返回值
- 更新预处理器跳过接口声明的处理逻辑
- 修改测试桩生成脚本以支持声明和分组使用语句的处理

bin/gen_stub.php

@@ -4502,7 +4502,7 @@ class FileInfo {
                 }
             }
 
-            if ($stmt instanceof Stmt\Use_) {
+            if ($stmt instanceof Stmt\Use_ or $stmt instanceof Stmt\GroupUse or $stmt instanceof Stmt\Declare_) {
                 continue;
             }
 

src/Php/CompilerBase.php

@@ -398,6 +398,8 @@ class CompilerBase extends \PhpAot\Core\Translator
                 return $this->parseShellExec($expr);
             case 'Expr_Closure':
                 return $this->parseClosure($expr);
+            case 'Expr_ArrowFunction':
+                return $this->parseArrowFunction($expr);
             case 'Name_FullyQualified':
                 return $expr->name;
             case 'Scalar_Int':
@@ -3760,6 +3762,50 @@ class CompilerBase extends \PhpAot\Core\Translator
         return $this->printer->prettyPrint([$stmt]);
     }
 
+    protected function parseArrowFunction(Node\Expr\ArrowFunction $expr): string
+    {
+        $tmpVar = $this->genTmpVarName();
+
+        $fnCode = $this->getIndent() .
+            'php::ClosureFn ' . $tmpVar . ' = [&]('
+            . 'INTERNAL_FUNCTION_PARAMETERS, '
+            . self::TYPE_OBJECT . ' &this_, '
+            . self::TYPE_ARGS . ' &vars_) ' .
+            '-> ' . self::TYPE_VAR . ' {' . PHP_EOL;
+
+        $oriArgs = $this->arguments;
+        $this->arguments = [];
+        $oriInClosure = $this->inClosure;
+        $this->inClosure = true;
+
+        $this->indentLevel++;
+
+        foreach ($expr->params as $i => $param) {
+            $var = $this->parseIdentifier($param->var);
+            $fnCode .= 'auto ' . $var . ' = php::getCallArg(' . $i . ');' . PHP_EOL;
+            $this->addArgument($var, self::TYPE_VAR);
+        }
+
+        if ($this->methodDef) {
+            $this->addArgument('this_', self::TYPE_OBJECT);
+        }
+
+        $fnCode .= 'return ' . $this->parseExpr($expr->expr) . ';';
+
+        $this->indentLevel--;
+        $fnCode .= '};' . PHP_EOL;
+
+        $this->beforeStmtLines[] = $fnCode;
+        $this->arguments = $oriArgs;
+        $this->inClosure = $oriInClosure;
+
+        if ($this->methodDef) {
+            return 'php::newClosure(' . $tmpVar . ', { }, this_)';
+        } else {
+            return 'php::newClosure(' . $tmpVar . ', { })';
+        }
+    }
+
     protected function parseClosure(Node\Expr\Closure $expr): string
     {
         $tmpVar = $this->genTmpVarName();

src/Php/Preprocessor.php

@@ -144,6 +144,7 @@ class Preprocessor extends CompilerBase
                     break;
                 case 'Stmt_Use':
                 case 'Stmt_Const':
+                case 'Stmt_Interface':
                     break;
                 case 'Stmt_Expression':
                     $this->foundStrayCode($v2);

tests/aot/arrow-func.phpt

@@ -0,0 +1,13 @@
+--TEST--
+arrow function
+--FILE--
+<?php
+function main()
+{
+    $y = 1;
+    $fn1 = fn($x) => $x + $y;
+    var_export($fn1(3));
+}
+?>
+--EXPECT--
+4