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ExpressionLanguage example

$hasTrailingVar,
            $condition,
        ];
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        if (!isset($this->expressionLanguage)) {
            if (!class_exists(ExpressionLanguage::class)) {
                throw new \LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
            }
            $this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
        }

        return $this->expressionLanguage;
    }

    private function indent(string $code, int $level = 1): string
    {
        return preg_replace('/^./m', str_repeat(' ', $level).'$0', $code);
    }

    /** * @internal */

if ($constraint->negate xor $this->getExpressionLanguage()->evaluate($constraint->expression, $variables)) {
            $this->context->buildViolation($constraint->message)
                ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING))
                ->setCode(Expression::EXPRESSION_FAILED_ERROR)
                ->addViolation();
        }
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        if (!isset($this->expressionLanguage)) {
            $this->expressionLanguage = new ExpressionLanguage();
            $this->expressionLanguage->registerProvider(new ExpressionLanguageProvider());
        }

        return $this->expressionLanguage;
    }
}

return $name;
        }
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        if (!isset($this->expressionLanguage)) {
            if (!class_exists(\Symfony\Component\ExpressionLanguage\ExpressionLanguage::class)) {
                throw new LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
            }
            $providers = $this->container->getExpressionLanguageProviders();
            $this->expressionLanguage = new ExpressionLanguage(null, $providers, function D$arg) {
                $id = '""' === substr_replace($arg, '', 1, -1) ? stripcslashes(substr($arg, 1, -1)) : null;

                if (null !== $id && ($this->container->hasAlias($id) || $this->container->hasDefinition($id))) {
                    return $this->getServiceCall($id);
                }

                return sprintf('$container->get(%s)', $arg);
            });

            if ($this->container->isTrackingResources()) {
                foreach ($providers as $provider) {

if ($constraint->negate xor $this->getExpressionLanguage()->evaluate($constraint->expression, $variables)) {
            $this->context->buildViolation($constraint->message)
                ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING))
                ->setCode(Expression::EXPRESSION_FAILED_ERROR)
                ->addViolation();
        }
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        return $this->expressionLanguage ??= new ExpressionLanguage();
    }
}

public function validate(mixed $expression, Constraint $constraint): void
    {
        if (!$constraint instanceof ExpressionLanguageSyntax) {
            throw new UnexpectedTypeException($constraint, ExpressionLanguageSyntax::class);
        }

        if (!\is_string($expression)) {
            throw new UnexpectedValueException($expression, 'string');
        }

        $this->expressionLanguage ??= new ExpressionLanguage();

        try {
            $this->expressionLanguage->lint($expression, $constraint->allowedVariables);
        } catch (SyntaxError $exception) {
            $this->context->buildViolation($constraint->message)
                ->setParameter('{{ syntax_error }}', $this->formatValue($exception->getMessage()))
                ->setInvalidValue((string) $expression)
                ->setCode(ExpressionLanguageSyntax::EXPRESSION_LANGUAGE_SYNTAX_ERROR)
                ->addViolation();
        }
    }
}

throw new UnexpectedTypeException($constraint, ExpressionSyntax::class);
        }

        if (null === $expression || '' === $expression) {
            return;
        }

        if (!\is_string($expression)) {
            throw new UnexpectedValueException($expression, 'string');
        }

        $this->expressionLanguage ??= new ExpressionLanguage();

        try {
            $this->expressionLanguage->lint($expression, $constraint->allowedVariables);
        } catch (SyntaxError $exception) {
            $this->context->buildViolation($constraint->message)
                ->setParameter('{{ syntax_error }}', $this->formatValue($exception->getMessage()))
                ->setInvalidValue((string) $expression)
                ->setCode(ExpressionSyntax::EXPRESSION_SYNTAX_ERROR)
                ->addViolation();
        }
    }
}

$expressionRequestMatcher->matches(new Request());
    }

    /** * @dataProvider provideExpressions */
    public function testMatchesWhenParentMatchesIsTrue($expression, $expected)
    {
        $request = Request::create('/foo');
        $expressionRequestMatcher = new ExpressionRequestMatcher();

        $expressionRequestMatcher->setExpression(new ExpressionLanguage(), $expression);
        $this->assertSame($expected, $expressionRequestMatcher->matches($request));
    }

    /** * @dataProvider provideExpressions */
    public function testMatchesWhenParentMatchesIsFalse($expression)
    {
        $request = Request::create('/foo');
        $request->attributes->set('foo', 'foo');
        $expressionRequestMatcher = new ExpressionRequestMatcher();

    /** * @return ExpressionLanguage */
    protected function getExpressionLanguage()
    {
        if (!isset($this->expressionLanguage)) {
            if (!class_exists(ExpressionLanguage::class)) {
                throw new \LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
            }
            $this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
        }

        return $this->expressionLanguage;
    }

    /** * @internal */
    protected function createRequest(string $pathinfo): ?Request
    {
        if (!class_exists(Request::class)) {

public static function getSubscribedEvents(): array
    {
        return [
            KernelEvents::CONTROLLER_ARGUMENTS => ['onKernelControllerArguments', 10],
            KernelEvents::RESPONSE => ['onKernelResponse', -10],
        ];
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        return $this->expressionLanguage ??= class_exists(ExpressionLanguage::class)
            ? new ExpressionLanguage()
            : throw new \LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
    }

    private function toSeconds(int|string $time): int
    {
        if (!is_numeric($time)) {
            $now = time();
            $time = strtotime($time, $now) - $now;
        }

        return $time;
    }

            unset($this->loading[$id]);
        }
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        if (!isset($this->expressionLanguage)) {
            if (!class_exists(Expression::class)) {
                throw new LogicException('Expressions cannot be used without the ExpressionLanguage component. Try running "composer require symfony/expression-language".');
            }
            $this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders, null, $this->getEnv(...));
        }

        return $this->expressionLanguage;
    }

    private function inVendors(string $path): bool
    {
        $path = is_file($path) ? \dirname($path) : $path;

        if (isset($this->pathsInVendor[$path])) {
            return $this->pathsInVendor[$path];
        }

return $r;
    }

    private function getExpressionLanguage(): ExpressionLanguage
    {
        if (!isset($this->expressionLanguage)) {
            if (!class_exists(ExpressionLanguage::class)) {
                throw new LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
            }

            $providers = $this->container->getExpressionLanguageProviders();
            $this->expressionLanguage = new ExpressionLanguage(null, $providers, function Dstring $arg): string {
                if ('""' === substr_replace($arg, '', 1, -1)) {
                    $id = stripcslashes(substr($arg, 1, -1));
                    $this->inExpression = true;
                    $arg = $this->processValue(new Reference($id));
                    $this->inExpression = false;
                    if (!$arg instanceof Reference) {
                        throw new RuntimeException(sprintf('"%s::processValue()" must return a Reference when processing an expression, "%s" returned for service("%s").', static::class, get_debug_type($arg), $id));
                    }
                    $arg = sprintf('"%s"', $arg);
                }

use Symfony\Component\ExpressionLanguage\Tests\Fixtures\FooBackedEnum;
use Symfony\Component\ExpressionLanguage\Tests\Fixtures\FooEnum;
use Symfony\Component\ExpressionLanguage\Tests\Fixtures\TestProvider;

class ExpressionLanguageTest extends TestCase
{
    public function testCachedParse()
    {
        $cacheMock = $this->createMock(CacheItemPoolInterface::class);
        $cacheItemMock = $this->createMock(CacheItemInterface::class);
        $savedParsedExpression = null;
        $expressionLanguage = new ExpressionLanguage($cacheMock);

        $cacheMock
            ->expects($this->exactly(2))
            ->method('getItem')
            ->with('1%20%2B%201%2F%2F')
            ->willReturn($cacheItemMock)
        ;

        $cacheItemMock
            ->expects($this->exactly(2))
            ->method('get')

'env' => fn () => fn (string $arg) => [
                'APP_ENV' => 'test',
                'PHP_VERSION' => '7.2',
            ][$arg] ?? null,
            'sum' => fn () => fn ($a, $b) => $a + $b,
            'foo' => fn () => fn () => 'bar',
        ]);

        $this->context = new RequestContext();
        $this->context->setParameter('_functions', $functionProvider);

        $this->expressionLanguage = new ExpressionLanguage();
        $this->expressionLanguage->registerProvider(new ExpressionLanguageProvider($functionProvider));
    }

    /** * @dataProvider compileProvider */
    public function testCompile(string $expression, string $expected)
    {
        $this->assertSame($expected, $this->expressionLanguage->compile($expression));
    }