From 4b42419be4a2593c44bf6bba62c2efce20c63814 Mon Sep 17 00:00:00 2001
From: tianfenghan <rango@swoole.com>
Date: Fri, 6 Feb 2026 18:58:31 +0800
Subject: [PATCH] =?UTF-8?q?feat(php):=20=E6=B7=BB=E5=8A=A0=E5=AF=B9?=
 =?UTF-8?q?=E7=A9=BA=E5=90=88=E5=B9=B6=E8=BF=90=E7=AE=97=E7=AC=A6=E7=9A=84?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81?=
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- 在编译器中实现对 Expr_BinaryOp_Coalesce 节点类型的解析
- 添加 parseBinaryOpCoalesce 方法处理空合并运算符逻辑
- 使用 isset 检查左侧表达式并返回相应的三元运算符结构
- 将左侧标识符解析为变量检查表达式，右侧作为默认值
---
 src/Php/CompilerBase.php | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Php/CompilerBase.php b/src/Php/CompilerBase.php
index 67d24168..7884f069 100644
--- a/src/Php/CompilerBase.php
+++ b/src/Php/CompilerBase.php
@@ -282,6 +282,8 @@ class CompilerBase extends \PhpAot\Core\Translator
                 return $this->parseBinaryOpGreaterOrEqual($expr);
             case 'Expr_BinaryOp_Spaceship':
                 return $this->parseBinaryOpSpaceship($expr);
+            case 'Expr_BinaryOp_Coalesce':
+                return $this->parseBinaryOpCoalesce($expr);
             case 'Expr_PreInc':
                 return $this->parsePreInc($expr);
             case 'Expr_PostInc':
@@ -2191,6 +2193,14 @@ class CompilerBase extends \PhpAot\Core\Translator
         return 'php::compare(' . $left . ', ' . $right . ')';
     }
 
+    protected function parseBinaryOpCoalesce(Node\Expr\BinaryOp\Coalesce $expr): string
+    {
+        $left = $this->parseIdentifier($expr->left);
+        $right = $this->parseIdentifier($expr->right);
+
+        return $this->parseVarCheckExpr($expr->left, 'isset') . ' ? ' . $left . ' : ' . $right;
+    }
+
     protected function parseBinaryOpNotIdentical(Node\Expr\BinaryOp $expr): string
     {
         return '!(' . $this->parseBinaryOpIdentical($expr) . ')';