From d042abc370f72fac172d31dc9a030fa3ab26dc49 Mon Sep 17 00:00:00 2001
From: Fabien Villepinte <fabien.villepinte@gmail.com>
Date: Tue, 9 Nov 2021 07:42:21 +0000
Subject: [PATCH 1/2] [Downgrade PHP 5.5] Add
 DowngradeClassConstantToStringRector

---
 config/set/downgrade-php55.php                | 16 ++++
 packages/Set/ValueObject/DowngradeSetList.php |  5 +
 ...wngradeClassConstantToStringRectorTest.php | 33 +++++++
 .../Fixture/another_class.php.inc             | 43 +++++++++
 .../Fixture/some_class.php.inc                | 23 +++++
 .../config/configured_rule.php                | 12 +++
 .../DowngradeClassConstantToStringRector.php  | 95 +++++++++++++++++++
 7 files changed, 227 insertions(+)
 create mode 100644 config/set/downgrade-php55.php
 create mode 100644 rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/DowngradeClassConstantToStringRectorTest.php
 create mode 100644 rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/another_class.php.inc
 create mode 100644 rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/some_class.php.inc
 create mode 100644 rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/config/configured_rule.php
 create mode 100644 rules/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector.php

diff --git a/config/set/downgrade-php55.php b/config/set/downgrade-php55.php
new file mode 100644
index 00000000000..9701ae4aee9
--- /dev/null
+++ b/config/set/downgrade-php55.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Core\Configuration\Option;
+use Rector\Core\ValueObject\PhpVersion;
+use Rector\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $parameters = $containerConfigurator->parameters();
+    $parameters->set(Option::PHP_VERSION_FEATURES, PhpVersion::PHP_54);
+
+    $services = $containerConfigurator->services();
+    $services->set(DowngradeClassConstantToStringRector::class);
+};
diff --git a/packages/Set/ValueObject/DowngradeSetList.php b/packages/Set/ValueObject/DowngradeSetList.php
index 44af8182f3d..b256cf8f31c 100644
--- a/packages/Set/ValueObject/DowngradeSetList.php
+++ b/packages/Set/ValueObject/DowngradeSetList.php
@@ -18,6 +18,11 @@ final class DowngradeSetList implements SetListInterface
      */
     public const PHP_54 = __DIR__ . '/../../../config/set/downgrade-php54.php';
 
+    /**
+     * @var string
+     */
+    public const PHP_55 = __DIR__ . '/../../../config/set/downgrade-php55.php';
+
     /**
      * @var string
      */
diff --git a/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/DowngradeClassConstantToStringRectorTest.php b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/DowngradeClassConstantToStringRectorTest.php
new file mode 100644
index 00000000000..716cc66e136
--- /dev/null
+++ b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/DowngradeClassConstantToStringRectorTest.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector;
+
+use Iterator;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+use Symplify\SmartFileSystem\SmartFileInfo;
+
+final class DowngradeClassConstantToStringRectorTest extends AbstractRectorTestCase
+{
+    /**
+     * @dataProvider provideData()
+     */
+    public function test(SmartFileInfo $fileInfo): void
+    {
+        $this->doTestFileInfo($fileInfo);
+    }
+
+    /**
+     * @return Iterator<SmartFileInfo>
+     */
+    public function provideData(): Iterator
+    {
+        return $this->yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/configured_rule.php';
+    }
+}
diff --git a/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/another_class.php.inc b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/another_class.php.inc
new file mode 100644
index 00000000000..b5233727cc2
--- /dev/null
+++ b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/another_class.php.inc
@@ -0,0 +1,43 @@
+<?php
+
+namespace Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector\Fixture;
+
+abstract class AnotherClass
+{
+    public function run()
+    {
+        return self::class . '/' . static::class;
+    }
+}
+
+final class ChildClass extends AnotherClass
+{
+    public function run()
+    {
+        return parent::Class;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector\Fixture;
+
+abstract class AnotherClass
+{
+    public function run()
+    {
+        return get_class() . '/' . get_called_class();
+    }
+}
+
+final class ChildClass extends AnotherClass
+{
+    public function run()
+    {
+        return get_parent_class();
+    }
+}
+
+?>
diff --git a/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/some_class.php.inc b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/some_class.php.inc
new file mode 100644
index 00000000000..bf993db6a70
--- /dev/null
+++ b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/Fixture/some_class.php.inc
@@ -0,0 +1,23 @@
+<?php
+
+namespace Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector\Fixture;
+
+final class SomeClass
+{
+}
+
+echo SomeClass::class;
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector\Fixture;
+
+final class SomeClass
+{
+}
+
+echo 'Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector\Fixture\SomeClass';
+
+?>
diff --git a/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/config/configured_rule.php b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/config/configured_rule.php
new file mode 100644
index 00000000000..71d05d74d79
--- /dev/null
+++ b/rules-tests/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector/config/configured_rule.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector;
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $services = $containerConfigurator->services();
+    $services->set(DowngradeClassConstantToStringRector::class);
+};
diff --git a/rules/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector.php b/rules/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector.php
new file mode 100644
index 00000000000..fec4658b811
--- /dev/null
+++ b/rules/DowngradePhp55/Rector/ClassConstFetch/DowngradeClassConstantToStringRector.php
@@ -0,0 +1,95 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\DowngradePhp55\Rector\ClassConstFetch;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\ClassConstFetch;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+use PhpParser\Node\Scalar\String_;
+use Rector\Core\Rector\AbstractRector;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @changelog https://wiki.php.net/rfc/class_name_scalars
+ *
+ * @see Rector\Tests\DowngradePhp55\Rector\ClassConstFetch\DowngradeClassConstantToStringRector\DowngradeClassConstantToStringRectorTest
+ */
+class DowngradeClassConstantToStringRector extends AbstractRector
+{
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition(
+            'Replace <class>::class constant by string class names',
+            [
+                new CodeSample(
+                    <<<'CODE_SAMPLE'
+class AnotherClass
+{
+}
+class SomeClass
+{
+    public function run()
+    {
+        return \AnotherClass::class;
+    }
+}
+CODE_SAMPLE
+                    ,
+                    <<<'CODE_SAMPLE'
+class AnotherClass
+{
+}
+class SomeClass
+{
+    public function run()
+    {
+        return 'AnotherClass';
+    }
+}
+CODE_SAMPLE
+                ),
+            ]
+        );
+    }
+
+    /**
+     * @return array<class-string<Node>>
+     */
+    public function getNodeTypes(): array
+    {
+        return [ClassConstFetch::class];
+    }
+
+    /**
+     * @param ClassConstFetch $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        if (
+            ! $node->name instanceof Identifier
+            || strtolower($node->name->name) !== 'class'
+            || ! $node->class instanceof Name
+        ) {
+            return null;
+        }
+
+        $className = $node->class->toString();
+
+        $func = match (strtolower($className)) {
+            'self' => 'get_class',
+            'static' => 'get_called_class',
+            'parent' => 'get_parent_class',
+            default => null,
+        };
+
+        if ($func !== null) {
+            return $this->nodeFactory->createFuncCall($func);
+        }
+
+        return new String_($className);
+    }
+}

From 69608494bd4c4151cb52cd8a74e61f7359236386 Mon Sep 17 00:00:00 2001
From: Fabien Villepinte <fabien.villepinte@gmail.com>
Date: Tue, 9 Nov 2021 09:40:59 +0100
Subject: [PATCH 2/2] Complete DowngradeLevelSetList down to 5.3

---
 config/set/level/down-to-php53.php                | 12 ++++++++++++
 config/set/level/down-to-php54.php                | 12 ++++++++++++
 config/set/level/down-to-php55.php                | 12 ++++++++++++
 .../Set/ValueObject/DowngradeLevelSetList.php     | 15 +++++++++++++++
 4 files changed, 51 insertions(+)
 create mode 100644 config/set/level/down-to-php53.php
 create mode 100644 config/set/level/down-to-php54.php
 create mode 100644 config/set/level/down-to-php55.php

diff --git a/config/set/level/down-to-php53.php b/config/set/level/down-to-php53.php
new file mode 100644
index 00000000000..f255db845f5
--- /dev/null
+++ b/config/set/level/down-to-php53.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Set\ValueObject\DowngradeLevelSetList;
+use Rector\Set\ValueObject\DowngradeSetList;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $containerConfigurator->import(DowngradeLevelSetList::DOWN_TO_PHP_54);
+    $containerConfigurator->import(DowngradeSetList::PHP_54);
+};
diff --git a/config/set/level/down-to-php54.php b/config/set/level/down-to-php54.php
new file mode 100644
index 00000000000..10894e23d6d
--- /dev/null
+++ b/config/set/level/down-to-php54.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Set\ValueObject\DowngradeLevelSetList;
+use Rector\Set\ValueObject\DowngradeSetList;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $containerConfigurator->import(DowngradeLevelSetList::DOWN_TO_PHP_55);
+    $containerConfigurator->import(DowngradeSetList::PHP_55);
+};
diff --git a/config/set/level/down-to-php55.php b/config/set/level/down-to-php55.php
new file mode 100644
index 00000000000..22b82063353
--- /dev/null
+++ b/config/set/level/down-to-php55.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Set\ValueObject\DowngradeLevelSetList;
+use Rector\Set\ValueObject\DowngradeSetList;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $containerConfigurator->import(DowngradeLevelSetList::DOWN_TO_PHP_56);
+    $containerConfigurator->import(DowngradeSetList::PHP_56);
+};
diff --git a/packages/Set/ValueObject/DowngradeLevelSetList.php b/packages/Set/ValueObject/DowngradeLevelSetList.php
index 27f0338e75a..13ecfd34a35 100644
--- a/packages/Set/ValueObject/DowngradeLevelSetList.php
+++ b/packages/Set/ValueObject/DowngradeLevelSetList.php
@@ -42,4 +42,19 @@ final class DowngradeLevelSetList implements SetListInterface
      * @var string
      */
     public const DOWN_TO_PHP_56 = __DIR__ . '/../../../config/set/level/down-to-php56.php';
+
+    /**
+     * @var string
+     */
+    public const DOWN_TO_PHP_55 = __DIR__ . '/../../../config/set/level/down-to-php55.php';
+
+    /**
+     * @var string
+     */
+    public const DOWN_TO_PHP_54 = __DIR__ . '/../../../config/set/level/down-to-php54.php';
+
+    /**
+     * @var string
+     */
+    public const DOWN_TO_PHP_53 = __DIR__ . '/../../../config/set/level/down-to-php53.php';
 }