RFC: Namespace-Scoped Visibility for Methods and Properties

Zend/tests/access_modifiers/private_namespace_array_map_001.phpt

@@ -0,0 +1,27 @@
+--TEST--
+private(namespace) method with array_map - same namespace
+--FILE--
+<?php
+
+namespace Foo;
+
+class A {
+    private(namespace) static function double($x) {
+        return $x * 2;
+    }
+}
+
+// Same namespace - should work
+$result = array_map([A::class, 'double'], [1, 2, 3]);
+var_dump($result);
+
+?>
+--EXPECT--
+array(3) {
+  [0]=>
+  int(2)
+  [1]=>
+  int(4)
+  [2]=>
+  int(6)
+}

Zend/tests/access_modifiers/private_namespace_array_map_002.phpt

@@ -0,0 +1,26 @@
+--TEST--
+private(namespace) method with array_map - different namespace
+--FILE--
+<?php
+
+namespace Foo {
+    class A {
+        private(namespace) static function double($x) {
+            return $x * 2;
+        }
+    }
+}
+
+namespace Bar {
+    // Different namespace - should fail
+    $result = array_map(['\Foo\A', 'double'], [1, 2, 3]);
+    var_dump($result);
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, cannot access private(namespace) method Foo\A::double() in %s:%d
+Stack trace:
+#0 %s(%d): array_map(Array, Array)
+#1 {main}
+  thrown in %s on line %d

Zend/tests/access_modifiers/private_namespace_asymmetric_001.phpt

@@ -0,0 +1,24 @@
+--TEST--
+Asymmetric visibility: public private(namespace)(set) property - read from same namespace
+--FILE--
+<?php
+
+namespace App {
+    class Config {
+        public private(namespace)(set) int $value = 100;
+    }
+
+    class ConfigManager {
+        public function getValue(): int {
+            $config = new Config();
+            return $config->value;
+        }
+    }
+
+    $manager = new ConfigManager();
+    echo $manager->getValue() . "\n";
+}
+
+?>
+--EXPECT--
+100

Zend/tests/access_modifiers/private_namespace_asymmetric_002.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Asymmetric visibility: public private(namespace)(set) property - write from same namespace
+--FILE--
+<?php
+
+namespace App {
+    class Config {
+        public private(namespace)(set) int $value = 100;
+    }
+
+    class ConfigManager {
+        public function setValue(): void {
+            $config = new Config();
+            $config->value = 200;
+            echo $config->value . "\n";
+        }
+    }
+
+    $manager = new ConfigManager();
+    $manager->setValue();
+}
+
+?>
+--EXPECT--
+200

Zend/tests/access_modifiers/private_namespace_asymmetric_003.phpt

@@ -0,0 +1,30 @@
+--TEST--
+Asymmetric visibility: public private(namespace)(set) property - write from different namespace fails
+--FILE--
+<?php
+
+namespace App {
+    class Config {
+        public private(namespace)(set) int $value = 100;
+    }
+}
+
+namespace Other {
+    class Consumer {
+        public function tryWrite(): void {
+            $config = new \App\Config();
+            $config->value = 200;
+        }
+    }
+
+    $consumer = new Consumer();
+    $consumer->tryWrite();
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught Error: Cannot modify private(namespace)(set) property App\Config::$value from scope Other\Consumer in %s:%d
+Stack trace:
+#0 %s(%d): Other\Consumer->tryWrite()
+#1 {main}
+  thrown in %s on line %d

Zend/tests/access_modifiers/private_namespace_asymmetric_004.phpt

@@ -0,0 +1,26 @@
+--TEST--
+Asymmetric visibility: public private(namespace)(set) property - read from different namespace succeeds
+--FILE--
+<?php
+
+namespace App {
+    class Config {
+        public private(namespace)(set) int $value = 100;
+    }
+}
+
+namespace Other {
+    class Consumer {
+        public function readValue(): int {
+            $config = new \App\Config();
+            return $config->value;
+        }
+    }
+
+    $consumer = new Consumer();
+    echo $consumer->readValue() . "\n";
+}
+
+?>
+--EXPECT--
+100

Zend/tests/access_modifiers/private_namespace_basic_001.phpt

@@ -0,0 +1,23 @@
+--TEST--
+private(namespace) method access from same namespace (same class)
+--FILE--
+<?php
+
+namespace App\Services {
+    class UserService {
+        private(namespace) function validate(): string {
+            return "validated";
+        }
+
+        public function process(): string {
+            return $this->validate();
+        }
+    }
+
+    $service = new UserService();
+    echo $service->process() . "\n";
+}
+
+?>
+--EXPECT--
+validated

Zend/tests/access_modifiers/private_namespace_basic_002.phpt

@@ -0,0 +1,26 @@
+--TEST--
+private(namespace) method access from same namespace (different class)
+--FILE--
+<?php
+
+namespace App\Services {
+    class UserService {
+        private(namespace) function validate(): string {
+            return "validated";
+        }
+    }
+
+    class AuthService {
+        public function authenticate(): string {
+            $service = new UserService();
+            return $service->validate();
+        }
+    }
+
+    $auth = new AuthService();
+    echo $auth->authenticate() . "\n";
+}
+
+?>
+--EXPECT--
+validated

Zend/tests/access_modifiers/private_namespace_basic_003.phpt

@@ -0,0 +1,32 @@
+--TEST--
+private(namespace) method access from different namespace fails
+--FILE--
+<?php
+
+namespace App\Services {
+    class UserService {
+        private(namespace) function validate(): string {
+            return "validated";
+        }
+    }
+}
+
+namespace App\Controllers {
+    class UserController {
+        public function process(): void {
+            $service = new \App\Services\UserService();
+            $service->validate();
+        }
+    }
+
+    $controller = new UserController();
+    $controller->process();
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught Error: Call to private(namespace) method App\Services\UserService::validate() from scope App\Controllers\UserController in %s:%d
+Stack trace:
+#0 %s(%d): App\Controllers\UserController->process()
+#1 {main}
+  thrown in %s on line %d

Zend/tests/access_modifiers/private_namespace_basic_004.phpt

@@ -0,0 +1,21 @@
+--TEST--
+private(namespace) property access from same namespace (same class)
+--FILE--
+<?php
+
+namespace App\Models {
+    class User {
+        private(namespace) int $id = 42;
+
+        public function getId(): int {
+            return $this->id;
+        }
+    }
+
+    $user = new User();
+    echo $user->getId() . "\n";
+}
+
+?>
+--EXPECT--
+42

Zend/tests/access_modifiers/private_namespace_basic_005.phpt

@@ -0,0 +1,24 @@
+--TEST--
+private(namespace) property access from same namespace (different class)
+--FILE--
+<?php
+
+namespace App\Models {
+    class User {
+        private(namespace) int $id = 42;
+    }
+
+    class UserRepository {
+        public function getUserId(): int {
+            $user = new User();
+            return $user->id;
+        }
+    }
+
+    $repo = new UserRepository();
+    echo $repo->getUserId() . "\n";
+}
+
+?>
+--EXPECT--
+42

Zend/tests/access_modifiers/private_namespace_basic_006.phpt

@@ -0,0 +1,30 @@
+--TEST--
+private(namespace) property access from different namespace fails
+--FILE--
+<?php
+
+namespace App\Models {
+    class User {
+        private(namespace) int $id = 42;
+    }
+}
+
+namespace App\Controllers {
+    class UserController {
+        public function showUserId(): void {
+            $user = new \App\Models\User();
+            echo $user->id;
+        }
+    }
+
+    $controller = new UserController();
+    $controller->showUserId();
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught Error: Cannot access private(namespace) property App\Models\User::$id from scope App\Controllers\UserController in %s:%d
+Stack trace:
+#0 %s(%d): App\Controllers\UserController->showUserId()
+#1 {main}
+  thrown in %s on line %d

Zend/tests/access_modifiers/private_namespace_basic_007.phpt

@@ -0,0 +1,32 @@
+--TEST--
+private(namespace) access from sub-namespace fails (exact namespace match required)
+--FILE--
+<?php
+
+namespace App {
+    class Service {
+        private(namespace) function test(): string {
+            return "success";
+        }
+    }
+}
+
+namespace App\Sub {
+    class Consumer {
+        public function callTest(): void {
+            $service = new \App\Service();
+            $service->test();
+        }
+    }
+
+    $consumer = new Consumer();
+    $consumer->callTest();
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught Error: Call to private(namespace) method App\Service::test() from scope App\Sub\Consumer in %s:%d
+Stack trace:
+#0 %s(%d): App\Sub\Consumer->callTest()
+#1 {main}
+  thrown in %s on line %d

Zend/tests/access_modifiers/private_namespace_basic_008.phpt

@@ -0,0 +1,32 @@
+--TEST--
+private(namespace) access from parent namespace fails (exact namespace match required)
+--FILE--
+<?php
+
+namespace App\Services\Auth {
+    class AuthService {
+        private(namespace) function authenticate(): string {
+            return "authenticated";
+        }
+    }
+}
+
+namespace App\Services {
+    class Consumer {
+        public function doAuth(): void {
+            $auth = new Auth\AuthService();
+            $auth->authenticate();
+        }
+    }
+
+    $consumer = new Consumer();
+    $consumer->doAuth();
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught Error: Call to private(namespace) method App\Services\Auth\AuthService::authenticate() from scope App\Services\Consumer in %s:%d
+Stack trace:
+#0 %s(%d): App\Services\Consumer->doAuth()
+#1 {main}
+  thrown in %s on line %d