[CodeQuality] Add is_a with string true

config/set/code-quality/code-quality.yaml

@@ -36,3 +36,4 @@ services:
     Rector\CodeQuality\Rector\For_\ForToForeachRector: ~
     Rector\CodeQuality\Rector\FuncCall\CompactToVariablesRector: ~
     Rector\CodeQuality\Rector\Class_\CompleteDynamicPropertiesRector: ~
+    Rector\CodeQuality\Rector\FuncCall\IsAWithStringWithThirdArgumentRector: ~

packages/CodeQuality/src/Rector/FuncCall/IsAWithStringWithThirdArgumentRector.php

@@ -0,0 +1,71 @@
+<?php declare(strict_types=1);
+
+namespace Rector\CodeQuality\Rector\FuncCall;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\FuncCall;
+use PHPStan\Type\StringType;
+use Rector\Rector\AbstractRector;
+use Rector\RectorDefinition\CodeSample;
+use Rector\RectorDefinition\RectorDefinition;
+
+final class IsAWithStringWithThirdArgumentRector extends AbstractRector
+{
+    public function getDefinition(): RectorDefinition
+    {
+        return new RectorDefinition('', [
+            new CodeSample(
+                <<<'CODE_SAMPLE'
+class SomeClass
+{
+    public function __construct(string $value)
+    {
+        return is_a($value, 'stdClass');
+    }
+}
+CODE_SAMPLE
+                ,
+                <<<'CODE_SAMPLE'
+class SomeClass
+{
+    public function __construct(string $value)
+    {
+        return is_a($value, 'stdClass', true);
+    }
+}
+CODE_SAMPLE
+            ),
+        ]);
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getNodeTypes(): array
+    {
+        return [FuncCall::class];
+    }
+
+    /**
+     * @param FuncCall $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        if (! $this->isName($node, 'is_a')) {
+            return null;
+        }
+
+        if (isset($node->args[2])) {
+            return null;
+        }
+
+        $firstArgumentStaticType = $this->getStaticType($node->args[0]->value);
+        if (! $firstArgumentStaticType instanceof StringType) {
+            return null;
+        }
+
+        $node->args[2] = new Node\Arg($this->createTrue());
+
+        return $node;
+    }
+}

packages/CodeQuality/tests/Rector/FuncCall/IsAWithStringWithThirdArgumentRector/Fixture/fixture.php.inc

@@ -0,0 +1,33 @@
+<?php
+
+namespace Rector\CodeQuality\Tests\Rector\FuncCall\IsAWithStringWithThirdArgumentRector\Fixture;
+
+class SomeClass
+{
+    public function __construct(string $value, $anotherValue)
+    {
+        $isString = is_a($value, 'stdClass');
+        $isString = is_a($value, 'stdClass', true);
+
+        $maybe = is_a($anotherValue, 'stdClass');
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\CodeQuality\Tests\Rector\FuncCall\IsAWithStringWithThirdArgumentRector\Fixture;
+
+class SomeClass
+{
+    public function __construct(string $value, $anotherValue)
+    {
+        $isString = is_a($value, 'stdClass', true);
+        $isString = is_a($value, 'stdClass', true);
+
+        $maybe = is_a($anotherValue, 'stdClass');
+    }
+}
+
+?>

packages/CodeQuality/tests/Rector/FuncCall/IsAWithStringWithThirdArgumentRector/IsAWithStringWithThirdArgumentRectorTest.php

@@ -0,0 +1,19 @@
+<?php declare(strict_types=1);
+
+namespace Rector\CodeQuality\Tests\Rector\FuncCall\IsAWithStringWithThirdArgumentRector;
+
+use Rector\CodeQuality\Rector\FuncCall\IsAWithStringWithThirdArgumentRector;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class IsAWithStringWithThirdArgumentRectorTest extends AbstractRectorTestCase
+{
+    public function test(): void
+    {
+        $this->doTestFiles([__DIR__ . '/Fixture/fixture.php.inc']);
+    }
+
+    protected function getRectorClass(): string
+    {
+        return IsAWithStringWithThirdArgumentRector::class;
+    }
+}