From 051c4a45fd831662c07c74ebcb97f0f4bbfffba0 Mon Sep 17 00:00:00 2001
From: tianfenghan <rango@swoole.com>
Date: Wed, 10 Jun 2026 14:46:49 +0800
Subject: [PATCH] =?UTF-8?q?feat(parser):=20=E6=B7=BB=E5=8A=A0=E5=AF=B9?=
 =?UTF-8?q?=E5=B5=8C=E5=A5=97=20list()=20=E8=A7=A3=E6=9E=84=E8=B5=8B?=
 =?UTF-8?q?=E5=80=BC=E7=9A=84=E6=94=AF=E6=8C=81?=
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- 在 AssignOpTrait 中实现嵌套列表解构逻辑
- 添加临时变量生成用于处理嵌套数组
- 集成 parseAssignToList 方法处理嵌套 list 结构
- 保持原有非嵌套情况下的行为不变
- 添加完整的嵌套 list 解构功能测试用例
- 确保多层嵌套的列表解构能够正确执行
---
 src/Php/Parser/AssignOpTrait.php  | 21 +++++++++++++-------
 tests/aot/arrays/list-nested.phpt | 32 +++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 7 deletions(-)
 create mode 100644 tests/aot/arrays/list-nested.phpt

diff --git a/src/Php/Parser/AssignOpTrait.php b/src/Php/Parser/AssignOpTrait.php
index a6de8cb4..b3aae194 100644
--- a/src/Php/Parser/AssignOpTrait.php
+++ b/src/Php/Parser/AssignOpTrait.php
@@ -109,14 +109,21 @@ trait AssignOpTrait
                 continue;
             }
             if ($item instanceof ArrayItem) {
-                $oriInAssignExpr = $this->context->inAssignExpr;
-                $this->context->inAssignExpr = true;
-                $var = $this->parseIdentifier($item->value);
-                $this->context->inAssignExpr = $oriInAssignExpr;
-                if ($this->isVarExpr($item->value) and !$this->hasVar($var)) {
-                    $this->addLocalVar($var, self::TYPE_VAR);
+                if ($item->value instanceof Expr\List_) {
+                    $nestedTmp = $this->genTmpVarName();
+                    $this->addLocalVar($nestedTmp, self::TYPE_ARRAY);
+                    $code .= "{$nestedTmp} = {$tmpVar}.item({$k}); ";
+                    $code .= $this->parseAssignToList($item->value, new Variable($nestedTmp));
+                } else {
+                    $oriInAssignExpr = $this->context->inAssignExpr;
+                    $this->context->inAssignExpr = true;
+                    $var = $this->parseIdentifier($item->value);
+                    $this->context->inAssignExpr = $oriInAssignExpr;
+                    if ($this->isVarExpr($item->value) and !$this->hasVar($var)) {
+                        $this->addLocalVar($var, self::TYPE_VAR);
+                    }
+                    $code .= "{$var} = {$tmpVar}.item({$k}); ";
                 }
-                $code .= "{$var} = {$tmpVar}.item({$k}); ";
             } else {
                 abort($item);
             }
diff --git a/tests/aot/arrays/list-nested.phpt b/tests/aot/arrays/list-nested.phpt
new file mode 100644
index 00000000..1b1fefe6
--- /dev/null
+++ b/tests/aot/arrays/list-nested.phpt
@@ -0,0 +1,32 @@
+--TEST--
+nested list() destructuring
+--FILE--
+<?php
+function main(): void {
+    $arr = [1, [2, 3], 4];
+    list($a, list($b, $c), $d) = $arr;
+    echo $a, PHP_EOL;
+    echo $b, PHP_EOL;
+    echo $c, PHP_EOL;
+    echo $d, PHP_EOL;
+
+    // deeper nesting
+    $arr2 = [10, [20, [30, 40]], 50];
+    list($x, list($y, list($z, $w)), $v) = $arr2;
+    echo $x, PHP_EOL;
+    echo $y, PHP_EOL;
+    echo $z, PHP_EOL;
+    echo $w, PHP_EOL;
+    echo $v, PHP_EOL;
+}
+?>
+--EXPECT--
+1
+2
+3
+4
+10
+20
+30
+40
+50