From 51772c1e279ba48008f31bee820ae8b5a0373bc9 Mon Sep 17 00:00:00 2001
From: tianfenghan <rango@swoole.com>
Date: Wed, 10 Jun 2026 16:03:00 +0800
Subject: [PATCH] =?UTF-8?q?refactor(php):=20=E4=BC=98=E5=8C=96SSA=E7=B1=BB?=
 =?UTF-8?q?=E5=9E=8B=E4=BC=98=E5=8C=96=E5=99=A8=E4=BB=A3=E7=A0=81=E7=BB=93?=
 =?UTF-8?q?=E6=9E=84?=
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- 移除未使用的 Expr 导入并添加 SsaVar 导入
- 简化 detectSsaDefType 方法中的类型声明
- 移除 Foreach 和 Switch 语句中冗余的节点类型检查
- 提高代码可读性和维护性
---
 src/Php/Optimizer/SsaTypeOptimizer.php | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/Php/Optimizer/SsaTypeOptimizer.php b/src/Php/Optimizer/SsaTypeOptimizer.php
index f247c823..42950f7d 100644
--- a/src/Php/Optimizer/SsaTypeOptimizer.php
+++ b/src/Php/Optimizer/SsaTypeOptimizer.php
@@ -11,8 +11,8 @@ namespace PhpAot\Php\Optimizer;
 
 use PhpAot\Php\Analysis\SsaBuilder;
 use PhpAot\Php\Analysis\SsaFlags;
+use PhpAot\Php\Analysis\SsaVar;
 use PhpParser\Node;
-use PhpParser\Node\Expr;
 use PhpParser\NodeAbstract;
 
 trait SsaTypeOptimizer
@@ -190,7 +190,7 @@ trait SsaTypeOptimizer
      * Detect the type produced by a single SSA variable definition.
      * Returns null if the type cannot be determined from the AST.
      */
-    protected function detectSsaDefType(\PhpAot\Php\Analysis\SsaVar $ssaVar): ?string
+    protected function detectSsaDefType(SsaVar $ssaVar): ?string
     {
         $def = $ssaVar->definition;
         if (!$def) {
@@ -412,13 +412,13 @@ trait SsaTypeOptimizer
             }
         }
 
-        if ($stmt instanceof Node\Stmt\Foreach_ && $stmt->expr instanceof Node) {
+        if ($stmt instanceof Node\Stmt\Foreach_) {
             if ($this->exprHasIntHazard($stmt->expr, $varName)) {
                 return true;
             }
         }
 
-        if ($stmt instanceof Node\Stmt\Switch_ && $stmt->cond instanceof Node) {
+        if ($stmt instanceof Node\Stmt\Switch_) {
             if ($this->exprHasIntHazard($stmt->cond, $varName)) {
                 return true;
             }
@@ -621,13 +621,13 @@ trait SsaTypeOptimizer
             }
         }
 
-        if ($stmt instanceof Node\Stmt\Foreach_ && $stmt->expr instanceof Node) {
+        if ($stmt instanceof Node\Stmt\Foreach_) {
             if ($this->exprHasFloatHazard($stmt->expr, $varName)) {
                 return true;
             }
         }
 
-        if ($stmt instanceof Node\Stmt\Switch_ && $stmt->cond instanceof Node) {
+        if ($stmt instanceof Node\Stmt\Switch_) {
             if ($this->exprHasFloatHazard($stmt->cond, $varName)) {
                 return true;
             }