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<?php |
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/* |
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* |
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* (c) Yaroslav Honcharuk <[email protected]> |
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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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namespace Yarhon\RouteGuardBundle\Twig\Node; |
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use Twig\Node\Node; |
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use Twig\Node\Expression\AbstractExpression; |
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use Twig\Node\Expression\ArrayExpression; |
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use Twig\Node\Expression\FunctionExpression; |
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use Twig\Node\Expression\ConstantExpression; |
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use Twig\Error\SyntaxError; |
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/** |
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* @author Yaroslav Honcharuk <[email protected]> |
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*/ |
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class RouteExpression extends FunctionExpression |
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{ |
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/** |
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* @param Node $arguments |
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* @param int $line |
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* |
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* @throws SyntaxError |
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*/ |
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public function __construct(Node $arguments, $line = 0) |
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{ |
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// TODO: validate arguments types? |
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if ($arguments->count() < 1) { |
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throw new SyntaxError('At least one argument (name) is required.', $line); |
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} |
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if ($arguments->count() > 3) { |
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throw new SyntaxError('Unrecognized extra arguments, only 3 (name, parameters, method) allowed.', $line); |
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} |
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$this->addDefaultArguments($arguments); |
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parent::__construct('route_guard_route', $arguments, $line); |
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// Set default generateAs parameters. |
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// We call this function after parent constructor call to allow it to rely on internal structure |
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// created by parent constructor (i.e., call $this->getNode('arguments'), $this->getTemplateLine()). |
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$this->setGenerateAs('path', false); |
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} |
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/** |
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* TODO: allow to specify $referenceType as a constant (one of UrlGeneratorInterface constants). |
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* Note that $relative can be an instance of AbstractExpression, and it's execution result can be non-calculable at compile time. |
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* |
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* @param string $referenceType |
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* @param bool|AbstractExpression $relative |
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* |
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* @return self |
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* |
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* @throws SyntaxError |
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*/ |
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public function setGenerateAs($referenceType, $relative = false) |
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{ |
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if (!in_array($referenceType, ['url', 'path'], true)) { |
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throw new SyntaxError(sprintf('Invalid reference type: %s', $referenceType), $this->getTemplateLine()); |
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} |
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$referenceType = new ConstantExpression($referenceType, $this->getTemplateLine()); |
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if (!($relative instanceof AbstractExpression)) { |
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$relative = new ConstantExpression($relative, $this->getTemplateLine()); |
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} |
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$argument = new ArrayExpression([], $this->getTemplateLine()); |
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$argument->addElement($referenceType); |
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$argument->addElement($relative); |
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$this->getNode('arguments')->setNode(3, $argument); |
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return $this; |
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} |
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/** |
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* @param Node $arguments |
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*/ |
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private function addDefaultArguments(Node $arguments) |
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{ |
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$line = $arguments->getTemplateLine(); |
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if (1 === $arguments->count()) { |
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// add a default "parameters" argument |
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$arguments->setNode(1, new ArrayExpression([], $line)); |
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} |
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if (2 === $arguments->count()) { |
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// add a default "method" argument |
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$arguments->setNode(2, new ConstantExpression('GET', $line)); |
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} |
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} |
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} |
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yarhon /
RouteGuardBundle
