[Validator] add Validation::createCallable()

Author: janvernieuwe

Exception/ValidationFailedException.php

@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Exception;
+
+use Symfony\Component\Validator\ConstraintViolationListInterface;
+
+/**
+ * @author Jan Vernieuwe <[email protected]>
+ */
+class ValidationFailedException extends RuntimeException
+{
+    private $violations;
+    private $value;
+
+    public function __construct($value, ConstraintViolationListInterface $violations)
+    {
+        $this->violations = $violations;
+        $this->value = $value;
+        parent::__construct($violations);
+    }
+
+    public function getValue()
+    {
+        return $this->value;
+    }
+
+    public function getViolations(): ConstraintViolationListInterface
+    {
+        return $this->violations;
+    }
+}

Tests/ValidationTest.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Tests\Validator;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Validator\Constraints\Email;
+use Symfony\Component\Validator\Exception\ValidationFailedException;
+use Symfony\Component\Validator\Validation;
+
+/**
+ * @author Jan Vernieuwe <[email protected]>
+ */
+class ValidationTest extends TestCase
+{
+    public function testCreateCallableValid()
+    {
+        $validator = Validation::createCallable(new Email());
+        $this->assertEquals('[email protected]', $validator('[email protected]'));
+    }
+
+    public function testCreateCallableInvalid()
+    {
+        $validator = Validation::createCallable(new Email());
+        $this->expectException(ValidationFailedException::class);
+        $validator('test');
+    }
+}

Validation.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Validator;
 
+use Symfony\Component\Validator\Exception\ValidationFailedException;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 
 /**
@@ -20,6 +21,23 @@
  */
 final class Validation
 {
+    /**
+     * Creates a callable chain of constraints.
+     */
+    public static function createCallable(Constraint ...$constraints): callable
+    {
+        $validator = self::createValidator();
+
+        return static function ($value) use ($constraints, $validator) {
+            $violations = $validator->validate($value, $constraints);
+            if (0 !== $violations->count()) {
+                throw new ValidationFailedException($value, $violations);
+            }
+
+            return $value;
+        };
+    }
+
     /**
      * Creates a new validator.
      *