[Symfony] framework bundle class replaces + form isValid()

easy-coding-standard.neon

@@ -45,9 +45,14 @@ parameters:
             # classes might not exist
             - */src/Rector/Contrib/Nette/*Rector.php
             - src/Rector/Contrib/Symfony/StringFormTypeToClassRector.php
+            - src/Rector/Contrib/Symfony/FormIsValidRector.php
         Symplify\CodingStandard\Sniffs\Debug\CommentedOutCodeSniff:
             # examples of code to be found
             - src/Rector/Contrib/Symfony/GetterToPropertyRector.php
         SlevomatCodingStandard\Sniffs\Classes\UnusedPrivateElementsSniff:
             # will be used soon
             - packages/NodeTypeResolver/src/TypeContext.php
+
+        PHP_CodeSniffer\Standards\Generic\Sniffs\Files\LineLengthSniff:
+            # long FQN classes that might not exist
+            - src/Rector/Contrib/Symfony/FrameworkBundleClassReplacementsRector.php

src/NodeVisitor/NodeConnector.php

@@ -13,7 +13,7 @@ final class NodeConnector extends NodeVisitorAbstract
     /**
      * @var Node
      */
-    private $stack;
+    private $stack = [];
 
     /**
      * @var Node

src/Rector/AbstractClassReplacerRector.php

@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Rector;
+
+use PhpParser\Node;
+use PhpParser\Node\Name;
+use PhpParser\Node\Name\FullyQualified;
+
+abstract class AbstractClassReplacerRector extends AbstractRector
+{
+    public function isCandidate(Node $node): bool
+    {
+        if (! $node instanceof Name) {
+            return false;
+        }
+
+        $fqnName = $node->toString();
+
+        return isset($this->getOldToNewClasses()[$fqnName]);
+    }
+
+    /**
+     * @param Name $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        $newName = $this->getNewName($node->toString());
+
+        return new FullyQualified($newName);
+    }
+
+    /**
+     * @return string[]
+     */
+    abstract protected function getOldToNewClasses(): array;
+
+    private function getNewName(string $oldName): string
+    {
+        return $this->getOldToNewClasses()[$oldName];
+    }
+}

src/Rector/Contrib/Symfony/FormIsValidRector.php

@@ -0,0 +1,71 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Rector\Contrib\Symfony;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\BinaryOp\BooleanAnd;
+use PhpParser\Node\Expr\MethodCall;
+use PhpParser\Node\Expr\Variable;
+use Rector\Deprecation\SetNames;
+use Rector\Rector\AbstractRector;
+
+/**
+ * Converts all:
+ * $form->isValid()
+ *
+ * into:
+ * $form->isSubmitted() && $form->isValid()
+ */
+final class FormIsValidRector extends AbstractRector
+{
+    public function getSetName(): string
+    {
+        return SetNames::SYMFONY;
+    }
+
+    public function sinceVersion(): float
+    {
+        return 4.0;
+    }
+
+    public function isCandidate(Node $node): bool
+    {
+        if (! $node instanceof MethodCall) {
+            return false;
+        }
+
+        if ($node->var->getAttribute('type') !== 'Symfony\Component\Form\Form') {
+            return false;
+        }
+
+        if ((string) $node->name !== 'isValid') {
+            return false;
+        }
+
+        if ($node->getAttribute('prev') !== null) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * @param MethodCall $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        $varName = $node->var->name;
+
+        return new BooleanAnd(
+            $this->createMethodCall($varName, 'isSubmitted'),
+            $this->createMethodCall($varName, 'isValid')
+        );
+    }
+
+    private function createMethodCall(string $varName, string $methodName): MethodCall
+    {
+        $varNode = new Variable($varName);
+
+        return new MethodCall($varNode, $methodName);
+    }
+}

src/Rector/Contrib/Symfony/FrameworkBundleClassReplacementsRector.php

@@ -0,0 +1,35 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Rector\Contrib\Symfony;
+
+use Rector\Deprecation\SetNames;
+use Rector\Rector\AbstractClassReplacerRector;
+
+/**
+ * Ref.: /~https://github.com/symfony/symfony/blob/master/UPGRADE-4.0.md#frameworkbundle
+ *
+ * FrameworkBundle classes replaced by new ones
+ */
+final class FrameworkBundleClassReplacementsRector extends AbstractClassReplacerRector
+{
+    public function getSetName(): string
+    {
+        return SetNames::SYMFONY;
+    }
+
+    public function sinceVersion(): float
+    {
+        return 4.0;
+    }
+
+    /**
+     * @return string[]
+     */
+    protected function getOldToNewClasses(): array
+    {
+        return [
+            'Symfony\Bundle\FrameworkBundle\DependencyInjectino\Compiler\SerializerPass' => 'Symfony\Component\Serializer\DependencyInjection\SerializerPass',
+            // @todo: complete the rest
+        ];
+    }
+}

tests/Rector/Contrib/Symfony/FormIsValidRector/Correct/correct.php.inc

@@ -0,0 +1,7 @@
+<?php declare (strict_types=1);
+
+$form = new \Symfony\Component\Form\Form;
+
+if ($form->isSubmitted() && $form->isValid()) {
+    $this->processForm($form);
+}

tests/Rector/Contrib/Symfony/FormIsValidRector/Test.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Tests\Rector\Contrib\Symfony\FormIsValidRector;
+
+use Rector\Rector\Contrib\Symfony\FormIsValidRector;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class Test extends AbstractRectorTestCase
+{
+    public function test(): void
+    {
+        $this->doTestFileMatchesExpectedContent(
+            __DIR__ . '/Wrong/wrong.php.inc',
+            __DIR__ . '/Correct/correct.php.inc'
+        );
+    }
+
+    /**
+     * @return string[]
+     */
+    protected function getRectorClasses(): array
+    {
+        return [FormIsValidRector::class];
+    }
+}

tests/Rector/Contrib/Symfony/FormIsValidRector/Wrong/wrong.php.inc

@@ -0,0 +1,7 @@
+<?php declare (strict_types=1);
+
+$form = new \Symfony\Component\Form\Form;
+
+if ($form->isValid()) {
+    $this->processForm($form);
+}

tests/Rector/Contrib/Symfony/FrameworkBundleClassReplacementsRector/Correct/correct.php.inc

@@ -0,0 +1,4 @@
+<?php declare (strict_types=1);
+
+$containerBuilder = new \Symfony\Component\DependencyInjection\ContainerBuilder;
+$containerBuilder->addCompilerPass(new \Symfony\Component\Serializer\DependencyInjection\SerializerPass);

tests/Rector/Contrib/Symfony/FrameworkBundleClassReplacementsRector/Test.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Tests\Rector\Contrib\Symfony\FrameworkBundleClassReplacementsRector;
+
+use Rector\Rector\Contrib\Symfony\FrameworkBundleClassReplacementsRector;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class Test extends AbstractRectorTestCase
+{
+    public function test(): void
+    {
+        $this->doTestFileMatchesExpectedContent(
+            __DIR__ . '/Wrong/wrong.php.inc',
+            __DIR__ . '/Correct/correct.php.inc'
+        );
+    }
+
+    /**
+     * @return string[]
+     */
+    protected function getRectorClasses(): array
+    {
+        return [FrameworkBundleClassReplacementsRector::class];
+    }
+}

tests/Rector/Contrib/Symfony/FrameworkBundleClassReplacementsRector/Wrong/wrong.php.inc

@@ -0,0 +1,4 @@
+<?php declare (strict_types=1);
+
+$containerBuilder = new \Symfony\Component\DependencyInjection\ContainerBuilder;
+$containerBuilder->addCompilerPass(new Symfony\Bundle\FrameworkBundle\DependencyInjectino\Compiler\SerializerPass);