Add LiveActionMethodsShouldBePublicRule

README.md

@@ -16,6 +16,82 @@ After installing the package, you need to configure PHPStan to use the rules.
 
 Each rule can be enabled individually by adding it to your `phpstan.dist.neon` configuration file.
 
+## LiveComponent Rules
+
+### LiveActionMethodsShouldBePublicRule
+
+Enforces that all methods annotated with `#[LiveAction]` in LiveComponents must be declared as public.
+LiveAction methods need to be publicly accessible to be invoked as component actions from the frontend.
+
+```yaml
+rules:
+    - Kocal\PHPStanSymfonyUX\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule
+```
+
+```php
+// src/Twig/Components/TodoList.php
+namespace App\Twig\Components;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+#[AsLiveComponent]
+final class TodoList
+{
+    #[LiveAction]
+    private function addItem(): void
+    {
+    }
+}
+```
+
+```php
+// src/Twig/Components/TodoList.php
+namespace App\Twig\Components;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+#[AsLiveComponent]
+final class TodoList
+{
+    #[LiveAction]
+    protected function deleteItem(): void
+    {
+    }
+}
+```
+
+:x:
+
+<br>
+
+```php
+// src/Twig/Components/TodoList.php
+namespace App\Twig\Components;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+#[AsLiveComponent]
+final class TodoList
+{
+    #[LiveAction]
+    public function addItem(): void
+    {
+    }
+
+    #[LiveAction]
+    public function deleteItem(): void
+    {
+    }
+}
+```
+
+:+1:
+
+<br>
+
 ## TwigComponent Rules
 
 > [!NOTE]

src/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule.php

@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Rules\LiveComponent;
+
+use Kocal\PHPStanSymfonyUX\NodeAnalyzer\AttributeFinder;
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Class_;
+use PHPStan\Analyser\Scope;
+use PHPStan\Rules\Rule;
+use PHPStan\Rules\RuleErrorBuilder;
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+/**
+ * @implements Rule<Class_>
+ */
+final class LiveActionMethodsShouldBePublicRule implements Rule
+{
+    public function getNodeType(): string
+    {
+        return Class_::class;
+    }
+
+    public function processNode(Node $node, Scope $scope): array
+    {
+        if (! AttributeFinder::findAnyAttribute($node, [AsLiveComponent::class])) {
+            return [];
+        }
+
+        $errors = [];
+
+        foreach ($node->getMethods() as $method) {
+            if (! AttributeFinder::findAnyAttribute($method, [LiveAction::class])) {
+                continue;
+            }
+
+            if (! $method->isPublic()) {
+                $methodName = $method->name->toString();
+
+                $errors[] = RuleErrorBuilder::message(
+                    sprintf('LiveAction method "%s()" should be public.', $methodName)
+                )
+                    ->identifier('symfonyUX.liveComponent.liveActionMethodsShouldBePublic')
+                    ->line($method->getLine())
+                    ->tip('Methods annotated with #[LiveAction] must be public to be accessible as component actions.')
+                    ->build();
+            }
+        }
+
+        return $errors;
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/Fixture/LiveComponentWithPrivateLiveAction.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Tests\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule\Fixture;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+#[AsLiveComponent]
+final class LiveComponentWithPrivateLiveAction
+{
+    public string $name = '';
+
+    #[LiveAction]
+    private function save(): void
+    {
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/Fixture/LiveComponentWithProtectedLiveAction.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Tests\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule\Fixture;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+#[AsLiveComponent]
+final class LiveComponentWithProtectedLiveAction
+{
+    public string $email = '';
+
+    #[LiveAction]
+    protected function delete(): void
+    {
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/Fixture/LiveComponentWithPublicLiveAction.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Tests\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule\Fixture;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+use Symfony\UX\LiveComponent\Attribute\LiveAction;
+
+#[AsLiveComponent]
+final class LiveComponentWithPublicLiveAction
+{
+    public string $title = '';
+
+    #[LiveAction]
+    public function submit(): void
+    {
+    }
+
+    #[LiveAction]
+    public function cancel(): void
+    {
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/Fixture/LiveComponentWithoutLiveAction.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Tests\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule\Fixture;
+
+use Symfony\UX\LiveComponent\Attribute\AsLiveComponent;
+
+#[AsLiveComponent]
+final class LiveComponentWithoutLiveAction
+{
+    public string $count = '0';
+
+    public function increment(): void
+    {
+    }
+
+    private function helperMethod(): void
+    {
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/Fixture/NotAComponent.php

@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Tests\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule\Fixture;
+
+class NotAComponent
+{
+    private function save(): void
+    {
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/LiveActionMethodsShouldBePublicRuleTest.php

@@ -0,0 +1,68 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kocal\PHPStanSymfonyUX\Tests\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule;
+
+use Kocal\PHPStanSymfonyUX\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule;
+use PHPStan\Rules\Rule;
+use PHPStan\Testing\RuleTestCase;
+
+/**
+ * @extends RuleTestCase<LiveActionMethodsShouldBePublicRule>
+ */
+final class LiveActionMethodsShouldBePublicRuleTest extends RuleTestCase
+{
+    public function testViolations(): void
+    {
+        $this->analyse(
+            [__DIR__ . '/Fixture/LiveComponentWithPrivateLiveAction.php'],
+            [
+                [
+                    'LiveAction method "save()" should be public.',
+                    15,
+                    'Methods annotated with #[LiveAction] must be public to be accessible as component actions.',
+                ],
+            ]
+        );
+
+        $this->analyse(
+            [__DIR__ . '/Fixture/LiveComponentWithProtectedLiveAction.php'],
+            [
+                [
+                    'LiveAction method "delete()" should be public.',
+                    15,
+                    'Methods annotated with #[LiveAction] must be public to be accessible as component actions.',
+                ],
+            ]
+        );
+    }
+
+    public function testNoViolations(): void
+    {
+        $this->analyse(
+            [__DIR__ . '/Fixture/NotAComponent.php'],
+            []
+        );
+
+        $this->analyse(
+            [__DIR__ . '/Fixture/LiveComponentWithPublicLiveAction.php'],
+            []
+        );
+
+        $this->analyse(
+            [__DIR__ . '/Fixture/LiveComponentWithoutLiveAction.php'],
+            []
+        );
+    }
+
+    public static function getAdditionalConfigFiles(): array
+    {
+        return [__DIR__ . '/config/configured_rule.neon'];
+    }
+
+    protected function getRule(): Rule
+    {
+        return self::getContainer()->getByType(LiveActionMethodsShouldBePublicRule::class);
+    }
+}

tests/Rules/LiveComponent/LiveActionMethodsShouldBePublicRule/config/configured_rule.neon

@@ -0,0 +1,2 @@
+rules:
+    - Kocal\PHPStanSymfonyUX\Rules\LiveComponent\LiveActionMethodsShouldBePublicRule