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Commita8f450d

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Add the twig constraint and its validator
1 parent95d1191 commita8f450d

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5 files changed

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‎src/Symfony/Component/Validator/CHANGELOG.md

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* Add the`Week` constraint
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* Add`CompoundConstraintTestCase` to ease testing Compound Constraints
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* Add context variable to`WhenValidator`
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* Add the`twig` constraint for validating Twig content
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7.1
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---
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespaceSymfony\Component\Validator\Constraints;
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useSymfony\Component\Validator\Attribute\HasNamedArguments;
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useSymfony\Component\Validator\Constraint;
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useSymfony\Component\Validator\Exception\LogicException;
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useTwig\Environment;
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/**
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* @author Mokhtar Tlili <tlili.mokhtar@gmail.com>
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*/
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#[\Attribute(\Attribute::TARGET_PROPERTY | \Attribute::TARGET_METHOD | \Attribute::IS_REPEATABLE)]
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class Twigextends Constraint
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{
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publicconstINVALID_TWIG_ERROR ='e7fc55d5-e586-4cc1-924e-d27ee7fcd1b5';
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protectedconstERROR_NAMES = [
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self::INVALID_TWIG_ERROR =>'INVALID_TWIG_ERROR',
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];
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#[HasNamedArguments]
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publicfunction__construct(
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publicstring$message ='This value is not valid Twig.',
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?array$groups =null,
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mixed$payload =null,
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) {
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if (!class_exists(Environment::class)) {
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thrownewLogicException('The twig/twig library is required to use the Twig constraint. Try running "composer require twig/twig".');
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}
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parent::__construct(null,$groups,$payload);
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}
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}
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespaceSymfony\Component\Validator\Constraints;
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useSymfony\Component\Validator\Constraint;
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useSymfony\Component\Validator\ConstraintValidator;
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useSymfony\Component\Validator\Exception\UnexpectedTypeException;
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useSymfony\Component\Validator\Exception\UnexpectedValueException;
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useTwig\Environment;
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useTwig\Error\Error;
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useTwig\Loader\ArrayLoader;
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useTwig\Source;
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/**
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* @author Mokhtar Tlili <tlili.mokhtar@gmail.com>
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*/
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class TwigValidatorextends ConstraintValidator
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{
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publicfunctionvalidate(mixed$value,Constraint$constraint):void
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{
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if (!$constraintinstanceof Twig) {
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thrownewUnexpectedTypeException($constraint, Twig::class);
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}
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if (null ===$value ||'' ===$value) {
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return;
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}
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if (!\is_scalar($value) && !$valueinstanceof \Stringable) {
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thrownewUnexpectedValueException($value,'string');
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}
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$value = (string)$value;
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$prevErrorHandler =set_error_handler(staticfunction ($level,$message,$file,$line)use (&$prevErrorHandler) {
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if (\E_USER_DEPRECATED ===$level) {
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$templateLine =0;
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if (preg_match('/ at line (\d+)[ .]/',$message,$matches)) {
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$templateLine =$matches[1];
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}
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thrownewError($message,$templateLine);
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}
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return$prevErrorHandler ?$prevErrorHandler($level,$message,$file,$line) :false;
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});
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try {
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$twig =newEnvironment(newArrayLoader([$value]));
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$twig->parse($twig->tokenize(newSource($value,'')));
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}catch (Error$e) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ error }}',$e->getMessage())
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->setParameter('{{ line }}',$e->getTemplateLine())
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->setCode(Twig::INVALID_TWIG_ERROR)
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->addViolation();
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}finally {
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restore_error_handler();
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}
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}
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}
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespaceSymfony\Component\Validator\Tests\Constraints;
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usePHPUnit\Framework\TestCase;
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useSymfony\Component\Validator\Constraints\Twig;
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useSymfony\Component\Validator\Mapping\ClassMetadata;
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useSymfony\Component\Validator\Mapping\Loader\AttributeLoader;
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/**
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* @author Mokhtar Tlili <tlili.mokhtar@gmail.com>
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*/
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class TwigTestextends TestCase
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{
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publicfunctiontestAttributes()
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{
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$metadata =newClassMetadata(TwigDummy::class);
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$loader =newAttributeLoader();
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self::assertTrue($loader->loadClassMetadata($metadata));
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[$bConstraint] =$metadata->properties['b']->getConstraints();
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self::assertSame('myMessage',$bConstraint->message);
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self::assertSame(['Default','TwigDummy'],$bConstraint->groups);
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[$cConstraint] =$metadata->properties['c']->getConstraints();
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self::assertSame(['my_group'],$cConstraint->groups);
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self::assertSame('some attached data',$cConstraint->payload);
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}
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}
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class TwigDummy
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{
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#[Twig]
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private$a;
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#[Twig(message:'myMessage')]
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private$b;
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#[Twig(groups: ['my_group'], payload:'some attached data')]
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private$c;
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}
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespaceSymfony\Component\Validator\Tests\Constraints;
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useSymfony\Component\Validator\Constraints\Twig;
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useSymfony\Component\Validator\Constraints\TwigValidator;
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useSymfony\Component\Validator\Test\ConstraintValidatorTestCase;
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/**
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* @author Mokhtar Tlili <tlili.mokhtar@gmail.com>
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*/
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class TwigValidatorTestextends ConstraintValidatorTestCase
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{
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protectedfunctioncreateValidator():TwigValidator
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{
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returnnewTwigValidator();
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}
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/**
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* @dataProvider getValidValues
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*/
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publicfunctiontestTwigIsValid($value)
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{
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$this->validator->validate($value,newTwig());
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$this->assertNoViolation();
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}
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/**
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* @dataProvider getInvalidValues
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*/
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publicfunctiontestInvalidValues($value,$message,$line)
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{
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$constraint =newTwig('myMessageTest');
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$this->validator->validate($value,$constraint);
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$this->buildViolation('myMessageTest')
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->setParameter('{{ error }}',$message)
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->setParameter('{{ line }}',$line)
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->setCode(Twig::INVALID_TWIG_ERROR)
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->assertRaised();
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}
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publicstaticfunctiongetValidValues()
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{
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return [
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['Hello {{ name }}'],
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['{% if condition %}Yes{% else %}No{% endif %}'],
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['{# Comment #}'],
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['Hello {{ "world" | upper }}'],
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['{% for i in 1..3 %}Item {{ i }}{% endfor %}'],
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];
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}
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publicstaticfunctiongetInvalidValues()
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{
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return [
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// Invalid syntax example (missing end tag)
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['{% if condition %}Oops','Unexpected end of template at line 1.',1],
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// Another syntax error example (unclosed variable)
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['Hello {{ name','Unexpected token "end of template" ("end of print statement" expected) at line 1.',1],
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// Unknown filter error
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['Hello {{ name | unknown_filter }}','Unknown "unknown_filter" filter at line 1.',1],
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// Invalid variable syntax
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['Hello {{ .name }}','Unexpected token "punctuation" of value "." at line 1.',1],
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];
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}
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}

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