feat(php): 添加除零检查和改进原生属性访问功能

- 添加对字面量除零、模零、赋值除零和赋值模零操作的编译时检查
- 实现对整数、浮点数和字符串类型的零值检测
- 为 AssignOpTrait 和 BinaryOpTrait 添加 guardLiteralDivisionByZero 方法
- 改进原生属性访问的类名解析，使用完整的类名进行查找
- 支持 static 关键字作为类名解析的一部分
- 添加 isSameClassName 和 isSameOrSubclassOf 辅助方法用于类继承关系判断
- 实现受保护属性访问权限控制的 canAccessProtectedProperty 方法
- 添加多个测试文件验证除零检查和原生属性访问功能
- 创建 NativePropertyTest 和 OperatorTest 测试类验证相关功能

phpunit/code/assign-divide-by-zero.php

@@ -0,0 +1,7 @@
+<?php
+
+function main(): void
+{
+    $value = 10;
+    $value /= 0;
+}

phpunit/code/assign-modulo-by-zero.php

@@ -0,0 +1,7 @@
+<?php
+
+function main(): void
+{
+    $value = 10;
+    $value %= 0;
+}

phpunit/code/divide-by-zero-float.php

@@ -0,0 +1,6 @@
+<?php
+
+function main(): void
+{
+    var_dump(1.0 / 0.0);
+}

phpunit/code/divide-by-zero-int.php

@@ -0,0 +1,6 @@
+<?php
+
+function main(): void
+{
+    var_dump(10 / 0);
+}

phpunit/code/divide-by-zero-string.php

@@ -0,0 +1,6 @@
+<?php
+
+function main(): void
+{
+    var_dump(10 / '0.00');
+}

phpunit/code/modulo-by-zero-int.php

@@ -0,0 +1,6 @@
+<?php
+
+function main(): void
+{
+    var_dump(10 % 0);
+}

phpunit/code/native-property-full-name.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace NativePropSource {
+    use native_types;
+
+    class Target
+    {
+        public static int $count = 1;
+        public int $value = 2;
+        protected int $protectedValue = 3;
+    }
+}
+
+namespace NativePropSource\Target {
+    use native_types;
+    use NativePropSource\Target;
+
+    class Child extends Target
+    {
+        public function readThis(): int
+        {
+            return $this->value;
+        }
+
+        public function readInheritedProtected(Target $target): int
+        {
+            return $target->protectedValue;
+        }
+
+        public static function readSelf(): int
+        {
+            return self::$count;
+        }
+
+        public static function readStatic(): int
+        {
+            return static::$count;
+        }
+
+        public static function readParent(): int
+        {
+            return parent::$count;
+        }
+    }
+
+    function readObject(): int
+    {
+        $target = new Target();
+        return $target->value;
+    }
+
+    function readStaticByUse(): int
+    {
+        return Target::$count;
+    }
+}
+
+namespace {
+    function main(): void
+    {
+        $child = new \NativePropSource\Target\Child();
+        var_dump($child->readThis());
+        var_dump(\NativePropSource\Target\readObject());
+        var_dump(\NativePropSource\Target\readStaticByUse());
+        var_dump(\NativePropSource\Target\Child::readSelf());
+        var_dump(\NativePropSource\Target\Child::readStatic());
+        var_dump(\NativePropSource\Target\Child::readParent());
+    }
+}

phpunit/code/native-property-private-other-class.php

@@ -0,0 +1,20 @@
+<?php
+
+use native_types;
+
+class NativePrivateOwner
+{
+    private int $value = 1;
+}
+
+class NativePrivateReader
+{
+    public function read(NativePrivateOwner $owner): int
+    {
+        return $owner->value;
+    }
+}
+
+function main(): void
+{
+}

phpunit/code/native-property-protected-unrelated-class.php

@@ -0,0 +1,20 @@
+<?php
+
+use native_types;
+
+class NativeProtectedOwner
+{
+    protected int $value = 1;
+}
+
+class NativeProtectedReader
+{
+    public function read(NativeProtectedOwner $owner): int
+    {
+        return $owner->value;
+    }
+}
+
+function main(): void
+{
+}

phpunit/src/NativePropertyTest.php

@@ -0,0 +1,40 @@
+<?php
+
+use PhpAot\Php\CompilerTest;
+use PhpAot\Php\Exception\TestError;
+
+class NativePropertyTest extends \BaseTest
+{
+    private function compile(string $file): void
+    {
+        global $translator;
+
+        $compiler = CompilerTest::create(ROOT_PATH);
+        $translator = $compiler;
+        $testFile = __DIR__ . '/../code/' . $file;
+        $compiler->addFiles([$testFile]);
+        $compiler->prepareFile($testFile);
+        $compiler->convertFile($testFile);
+
+        $this->addToAssertionCount(1);
+    }
+
+    public function testFindNativePropertyUsesFullClassNameAcrossBranches(): void
+    {
+        try {
+            $this->compile('native-property-full-name.php');
+        } catch (TestError $e) {
+            $this->fail($e->getMessage());
+        }
+    }
+
+    public function testCannotAccessPrivateNativePropertyFromUnrelatedClass(): void
+    {
+        $this->exec('Cannot access private property `value` of class `NativePrivateOwner`', 'native-property-private-other-class.php');
+    }
+
+    public function testCannotAccessProtectedNativePropertyFromUnrelatedClass(): void
+    {
+        $this->exec('Cannot access protected property `value` of class `NativeProtectedOwner`', 'native-property-protected-unrelated-class.php');
+    }
+}

phpunit/src/OperatorTest.php

@@ -0,0 +1,34 @@
+<?php
+
+class OperatorTest extends \BaseTest
+{
+    public function testLiteralIntDivideByZeroDoesNotCompile(): void
+    {
+        $this->exec('Cannot divide or modulo by zero', 'divide-by-zero-int.php');
+    }
+
+    public function testLiteralFloatDivideByZeroDoesNotCompile(): void
+    {
+        $this->exec('Cannot divide or modulo by zero', 'divide-by-zero-float.php');
+    }
+
+    public function testLiteralStringDivideByZeroDoesNotCompile(): void
+    {
+        $this->exec('Cannot divide or modulo by zero', 'divide-by-zero-string.php');
+    }
+
+    public function testLiteralModuloByZeroDoesNotCompile(): void
+    {
+        $this->exec('Cannot divide or modulo by zero', 'modulo-by-zero-int.php');
+    }
+
+    public function testLiteralDivideAssignByZeroDoesNotCompile(): void
+    {
+        $this->exec('Cannot divide or modulo by zero', 'assign-divide-by-zero.php');
+    }
+
+    public function testLiteralModuloAssignByZeroDoesNotCompile(): void
+    {
+        $this->exec('Cannot divide or modulo by zero', 'assign-modulo-by-zero.php');
+    }
+}

src/Php/CompilerBase.php

@@ -3866,7 +3866,7 @@ class CompilerBase extends \PhpAot\Core\Translator
                 if ($this->classDef->trait) {
                     goto _dynamic_attr;
                 }
-                $nativeProperty = $this->findNativeProperty($expr, $propertyName, $this->class, $this->namespace);
+                $nativeProperty = $this->findNativeProperty($expr, $propertyName, $this->getFullClassName());
             } elseif ($this->isTypedObject($objectName)) {
                 $className = $this->getObjectType($objectName);
                 $nativeProperty = $this->findNativeProperty($expr, $propertyName, $className);
@@ -4723,7 +4723,7 @@ class CompilerBase extends \PhpAot\Core\Translator
         if ($this->isNameExpr($expr->class) and $this->isIdExpr($expr->name)) {
             $class = $this->parseIdentifier($expr->class);
             $propertyName = $this->parseIdentifier($expr->name);
-            if ($class === 'self') {
+            if ($class === 'self' || $class === 'static') {
                 if ($this->classDef->trait) {
                     return Symbol::getStaticProperty() . '(' . Symbol::getCalledCe() . ', ' . $this->getLiteralString($propertyName) . ')';
                 }
@@ -4745,13 +4745,42 @@ class CompilerBase extends \PhpAot\Core\Translator
         return null;
     }
 
+    protected function isSameClassName(string $classA, string $classB): bool
+    {
+        return strcasecmp(ltrim($classA, '\\'), ltrim($classB, '\\')) === 0;
+    }
+
+    protected function isSameOrSubclassOf(string $class, string $parent): bool
+    {
+        $class = strtolower(ltrim($class, '\\'));
+        $parent = strtolower(ltrim($parent, '\\'));
+        while ($class !== '') {
+            if ($class === $parent) {
+                return true;
+            }
+            $class = $this->classExtends[$class] ?? '';
+        }
+        return false;
+    }
+
+    protected function canAccessProtectedProperty(string $scope, string $declaringClass): bool
+    {
+        if ($scope === '') {
+            return false;
+        }
+        return $this->isSameOrSubclassOf($scope, $declaringClass)
+            || $this->isSameOrSubclassOf($declaringClass, $scope);
+    }
+
     /**
      * @param NodeAbstract $expr 仅用于输出错误日志
+     * @param string $class 必须传入带有完整命名空间的类名
      */
     protected function findNativeProperty(NodeAbstract $expr, string $property, string $class, bool $static = false): ?string
     {
+        $class = ltrim($class, '\\');
         $findClass = $class;
-        $scope = $this->class ? $class : '';
+        $scope = $this->class ? $this->getFullClassName() : '';
         $propertyDef = null;
         $classDef = null;
         while (true) {
@@ -4769,13 +4798,13 @@ class CompilerBase extends \PhpAot\Core\Translator
                         break;
                     }
                     if ($propertyDef->isProtected()) {
-                        if ($scope) {
+                        if ($this->canAccessProtectedProperty($scope, $findClass)) {
                             break;
                         }
                         $displayClass = ltrim($class, '\\');
                         $this->fatalError($expr, "Cannot access protected property `{$property}` of class `{$displayClass}`");
                     } else {
-                        if ($scope === $findClass) {
+                        if ($this->isSameClassName($scope, $findClass)) {
                             break;
                         }
                         $displayClass = ltrim($class, '\\');

src/Php/Parser/AssignOpTrait.php

@@ -323,6 +323,7 @@ trait AssignOpTrait
         $var          = $this->parseIdentifier($node->var);
         $this->context->inAssignExpr = $oriInAssignExpr;
         $expr         = $this->parseIdentifier($node->expr);
+        $this->guardLiteralDivisionByZero($node->expr, $op);
 
         if ($this->isVarExpr($node->var)) {
             if (!$this->hasVar($var)) {

src/Php/Parser/BinaryOpTrait.php

@@ -121,9 +121,7 @@ trait BinaryOpTrait
             $leftExpr = $this->convertExprType($leftExpr, $leftType, self::TYPE_FLOAT);
         }
 
-        if (($op === '/' or $op === '%') and $this->isZeroLiteral($right)) {
+        $this->guardLiteralDivisionByZero($right, $op);
-            $this->fatalError($right, 'Cannot divide or modulo by zero');
-        }
 
         if ($op === '%' and !($leftType === self::TYPE_INT and $rightType === self::TYPE_INT)) {
             return 'php::fn::mod(' . $leftExpr . ', ' . $rightExpr . ')';
@@ -357,16 +355,27 @@ trait BinaryOpTrait
         return $this->parseBinaryOp($expr->left, $expr->right, '/');
     }
 
-    private function isZeroLiteral(NodeAbstract $expr): bool
+    protected function guardLiteralDivisionByZero(NodeAbstract $right, string $op): void
+    {
+        if (($op === '/' or $op === '%' or $op === '/=' or $op === '%=') and $this->isZeroLiteral($right)) {
+            $this->fatalError($right, 'Cannot divide or modulo by zero');
+        }
+    }
+
+    protected function isZeroLiteral(NodeAbstract $expr): bool
     {
         if ($expr instanceof Node\Scalar\Int_) {
-            return $expr->value == 0;
+            return $expr->value === 0;
         }
         if ($expr instanceof Node\Scalar\Float_) {
             return $expr->value == 0.0;
         }
+        if ($expr instanceof Expr\UnaryMinus || $expr instanceof Expr\UnaryPlus) {
+            return $this->isZeroLiteral($expr->expr);
+        }
         if ($expr instanceof Node\Scalar\String_) {
-            return $expr->value === '0' || $expr->value === '0.0';
+            $value = trim($expr->value);
+            return $value !== '' && is_numeric($value) && (float) $value == 0.0;
         }
         return false;
     }

tests/aot/float_edge/edge-cases.phpt

@@ -18,8 +18,6 @@ function main(): void {
     echo -INF . "\n";
     var_dump(INF + INF);
     var_dump(INF / INF);
-    var_dump(0.0 / 0.0);
-    var_dump(1.0 / 0.0);
 }
 ?>
 --EXPECT--
@@ -38,5 +36,3 @@ INF
 -INF
 float(INF)
 float(NAN)
-float(NAN)
-float(NAN)