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<?php |
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/** |
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* This file is part of Railt package. |
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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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declare(strict_types=1); |
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namespace Railt\SDL\Spec; |
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use Phplrt\Source\File; |
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use Phplrt\Visitor\Visitor; |
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use Railt\SDL\CompilerInterface; |
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use Phplrt\Contracts\Ast\NodeInterface; |
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use Railt\SDL\Spec\Constraint\Constraint; |
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use Phplrt\Contracts\Source\FileInterface; |
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use Phplrt\Source\Exception\NotFoundException; |
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use Phplrt\Source\Exception\NotReadableException; |
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use Railt\SDL\Spec\Constraint\RepeatableDirectives; |
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use Railt\SDL\Spec\Constraint\TypeSystemExtensions; |
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/** |
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* Class Specification |
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*/ |
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abstract class Specification extends Visitor implements SpecificationInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private const RESOURCES_PATHNAME = __DIR__ . '/../../resources/stdlib/%s.graphql'; |
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/** |
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* @var string[]|Constraint[] |
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*/ |
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protected const STANDARD_CONSTRAINTS = [ |
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RepeatableDirectives::class, |
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TypeSystemExtensions::class, |
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]; |
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/** |
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* List of language version constraints. |
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* That is, additional restrictions which should be added to |
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* standard constraints. |
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* |
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* @var array|Constraint[] |
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*/ |
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protected array $constraints = []; |
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/** |
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* List of the language abilities. |
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* That is, features that are excluded from |
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* standard constraints. |
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* |
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* @var array|Constraint[] |
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*/ |
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protected array $abilities = []; |
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/** |
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* List of the language types. |
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* |
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* @var array|string[] |
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*/ |
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protected array $types = []; |
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/** |
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* Specification constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->bootConstraints(); |
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} |
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/** |
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* @return void |
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*/ |
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private function bootConstraints(): void |
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{ |
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foreach (static::STANDARD_CONSTRAINTS as $constraint) { |
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if (! \in_array($constraint, $this->abilities, true)) { |
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$this->constraints[] = $constraint; |
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} |
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} |
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$this->constraints = \array_unique($this->constraints); |
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} |
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/** |
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* @param CompilerInterface $compiler |
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* @return void |
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* @throws NotFoundException |
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* @throws NotReadableException |
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*/ |
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public function load(CompilerInterface $compiler): void |
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{ |
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$this->includeMany($compiler, $this->types); |
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} |
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/** |
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* @param CompilerInterface $compiler |
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* @param array $names |
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* @return void |
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* @throws NotFoundException |
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* @throws NotReadableException |
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*/ |
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protected function includeMany(CompilerInterface $compiler, array $names): void |
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{ |
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foreach ($names as $name) { |
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$this->include($compiler, $name); |
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} |
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} |
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/** |
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* @param CompilerInterface $compiler |
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* @param string $name |
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* @return void |
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* @throws NotFoundException |
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* @throws NotReadableException |
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*/ |
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protected function include(CompilerInterface $compiler, string $name): void |
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{ |
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$compiler->preload($this->fromResources($name)); |
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} |
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/** |
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* @param string $name |
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* @return FileInterface |
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* @throws NotFoundException |
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* @throws NotReadableException |
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*/ |
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protected function fromResources(string $name): FileInterface |
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{ |
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return File::fromPathname(\sprintf(self::RESOURCES_PATHNAME, $name)); |
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} |
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/** |
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* @param NodeInterface $node |
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* @return void |
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*/ |
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public function enter(NodeInterface $node): void |
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{ |
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foreach ($this->constraints as $constraint) { |
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$constraint::assert($node, $this); |
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} |
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} |
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} |
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railt /
sdl
