[DowngradePhp71] Add DowngradePhp71JsonConstRector (#1784)

config/set/downgrade-php71.php

@@ -6,6 +6,7 @@
 use Rector\Core\ValueObject\PhpVersion;
 use Rector\DowngradePhp71\Rector\Array_\SymmetricArrayDestructuringToListRector;
 use Rector\DowngradePhp71\Rector\ClassConst\DowngradeClassConstantVisibilityRector;
+use Rector\DowngradePhp71\Rector\ConstFetch\DowngradePhp71JsonConstRector;
 use Rector\DowngradePhp71\Rector\FuncCall\DowngradeIsIterableRector;
 use Rector\DowngradePhp71\Rector\FunctionLike\DowngradeIterablePseudoTypeDeclarationRector;
 use Rector\DowngradePhp71\Rector\FunctionLike\DowngradeNullableTypeDeclarationRector;
@@ -31,4 +32,5 @@
     $services->set(DowngradeIterablePseudoTypeDeclarationRector::class);
     $services->set(DowngradeIsIterableRector::class);
     $services->set(DowngradeClosureFromCallableRector::class);
+    $services->set(DowngradePhp71JsonConstRector::class);
 };

rules-tests/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector/DowngradePhp71JsonConstRectorTest.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\ConstFetch\DowngradePhp71JsonConstRector;
+
+use Iterator;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+use Symplify\SmartFileSystem\SmartFileInfo;
+
+final class DowngradePhp71JsonConstRectorTest 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';
+    }
+}

rules-tests/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector/Fixture/fixture.php.inc

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\FuncCall\DowngradePhp71JsonConstRector\Fixture;
+
+class Fixture
+{
+    public function run()
+    {
+        $inDecoder = new Decoder($connection, true, 512, \JSON_UNESCAPED_LINE_TERMINATORS);
+    }
+}
+
+?>
+-----
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\FuncCall\DowngradePhp71JsonConstRector\Fixture;
+
+class Fixture
+{
+    public function run()
+    {
+        $inDecoder = new Decoder($connection, true, 512, 0);
+    }
+}
+
+?>

rules-tests/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector/Fixture/in_bitwise.php.inc

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\FuncCall\DowngradePhp71JsonConstRector\Fixture;
+
+class InBitwise
+{
+    public function run($argument)
+    {
+        $argument = json_encode($argument, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_LINE_TERMINATORS);
+    }
+}
+
+?>
+-----
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\FuncCall\DowngradePhp71JsonConstRector\Fixture;
+
+class InBitwise
+{
+    public function run($argument)
+    {
+        $argument = json_encode($argument, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+    }
+}
+
+?>

rules-tests/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector/Fixture/skip_bitwise_different_constants.php.inc

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\FuncCall\DowngradePhp71JsonConstRector\Fixture;
+
+class SkipBitwiseDifferentConstant
+{
+    public function run($argument)
+    {
+        $argument = json_encode($argument, JSON_HEX_TAG | JSON_PRETTY_PRINT);
+    }
+}

rules-tests/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector/Fixture/skip_different_constant.php.inc

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp71\Rector\FuncCall\DowngradePhp71JsonConstRector\Fixture;
+
+class SkipDifferentConstant
+{
+    public function run()
+    {
+        json_encode($a, JSON_HEX_TAG);
+    }
+}

rules-tests/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector/config/configured_rule.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\DowngradePhp71\Rector\ConstFetch\DowngradePhp71JsonConstRector;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $services = $containerConfigurator->services();
+    $services->set(DowngradePhp71JsonConstRector::class);
+};

rules/DowngradePhp71/Rector/ConstFetch/DowngradePhp71JsonConstRector.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\DowngradePhp71\Rector\ConstFetch;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\BinaryOp\BitwiseOr;
+use PhpParser\Node\Expr\ConstFetch;
+use Rector\Core\Rector\AbstractRector;
+use Rector\DowngradePhp72\NodeManipulator\JsonConstCleaner;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @changelog https://www.php.net/manual/en/function.json-encode.php#refsect1-function.json-encode-changelog
+ *
+ * @see \Rector\Tests\DowngradePhp71\Rector\ConstFetch\DowngradePhp71JsonConstRector\DowngradePhp71JsonConstRectorTest
+ */
+final class DowngradePhp71JsonConstRector extends AbstractRector
+{
+    /**
+     * @var string[]
+     */
+    private const CONSTANTS = ['JSON_UNESCAPED_LINE_TERMINATORS'];
+
+    public function __construct(
+        private readonly JsonConstCleaner $jsonConstCleaner
+    ) {
+    }
+
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition(
+            'Remove Json constant that available only in php 7.1',
+            [
+                new CodeSample(
+                    <<<'CODE_SAMPLE'
+json_encode($content, JSON_UNESCAPED_LINE_TERMINATORS);
+CODE_SAMPLE
+                    ,
+                    <<<'CODE_SAMPLE'
+json_encode($content, 0);
+CODE_SAMPLE
+                ),
+            ]
+        );
+    }
+
+    /**
+     * @return array<class-string<Node>>
+     */
+    public function getNodeTypes(): array
+    {
+        return [ConstFetch::class, BitwiseOr::class];
+    }
+
+    /**
+     * @param ConstFetch|BitwiseOr $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        return $this->jsonConstCleaner->clean($node, self::CONSTANTS);
+    }
+}