From 6e593b3d467a9042468f859f0bf749116aef5768 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8E=9F=E7=82=B9?= <467490186@qq.com>
Date: Thu, 27 Aug 2026 14:17:49 +0800
Subject: [PATCH] fix(gen_stub): use toVarEscapedName for union type
 ZEND_TYPE_INIT_CLASS

When generating arginfo for union/intersection types with 2+ class types,
the ZEND_TYPE_INIT_CLASS macro was using toEscapedName() which preserves
backslashes (e.g. yuandian\\Database\\Db\\Expression\\Raw), but
C identifiers cannot contain backslashes.

This caused compilation errors like:
  error: stray '\' in program

Fix: use toVarEscapedName() which replaces namespace separators with
underscores, consistent with the single-class-type branch (line 2901).
---
 src/gen_stub.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gen_stub.php b/src/gen_stub.php
index c39335b6..c959fafb 100755
--- a/src/gen_stub.php
+++ b/src/gen_stub.php
@@ -2881,8 +2881,8 @@ abstract class VariableLike
                     $code .= "\t{$variableLikeType}_{$variableLikeName}_type_list->num_types = $classTypeCount;\n";
 
                     foreach ($arginfoType->classTypes as $k => $classType) {
-                        $escapedClassName = $classType->toEscapedName();
-                        $code .= "\t{$variableLikeType}_{$variableLikeName}_type_list->types[$k] = (zend_type) ZEND_TYPE_INIT_CLASS({$variableLikeType}_{$variableLikeName}_class_{$escapedClassName}, 0, 0);\n";
+                        $varEscapedClassName = $classType->toVarEscapedName();
+                        $code .= "\t{$variableLikeType}_{$variableLikeName}_type_list->types[$k] = (zend_type) ZEND_TYPE_INIT_CLASS({$variableLikeType}_{$variableLikeName}_class_{$varEscapedClassName}, 0, 0);\n";
                     }
 
                     $typeMaskCode = $this->type->toArginfoType()->toTypeMask();