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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\Frontend\Builder; |
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use Railt\Parser\Ast\RuleInterface; |
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use Railt\SDL\Frontend\AST\TypeNameNode; |
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use Railt\SDL\Frontend\Context\ContextInterface; |
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use Railt\SDL\Frontend\Record\Argument; |
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use Railt\SDL\Frontend\Record\Record; |
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use Railt\SDL\Frontend\Record\RecordInterface; |
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use Railt\SDL\Frontend\Type\Anonymous; |
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use Railt\SDL\Frontend\Type\Type; |
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use Railt\SDL\Frontend\Type\TypeInterface; |
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use Railt\SDL\Frontend\Type\TypeName; |
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use Railt\SDL\Frontend\Type\TypeNameInterface; |
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/** |
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* Class DefinitionBuilder |
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*/ |
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class DefinitionBuilder extends BaseBuilder |
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{ |
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/** |
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* @var string[] |
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*/ |
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private const TYPE_DEFINITIONS = [ |
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'ObjectDefinition' => Type::OBJECT, |
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'SchemaDefinition' => Type::SCHEMA, |
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'DirectiveDefinition' => Type::DIRECTIVE, |
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]; |
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/** |
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* @param RuleInterface $rule |
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* @return bool |
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*/ |
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public function match(RuleInterface $rule): bool |
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{ |
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return (bool)(self::TYPE_DEFINITIONS[$rule->getName()] ?? false); |
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} |
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/** |
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* @param ContextInterface $ctx |
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* @param RuleInterface $rule |
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* @return \Generator|RecordInterface|TypeNameInterface|void |
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*/ |
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public function reduce(ContextInterface $ctx, RuleInterface $rule) |
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{ |
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$name = yield $this->createTypeName($rule); |
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$record = new Record($name, $this->getType($rule), $rule); |
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foreach ($this->createTypeArguments($ctx, $rule) as $argument) { |
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$record->addArgument($argument); |
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} |
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$ctx->close(); |
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return $record; |
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} |
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/** |
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* @param RuleInterface $rule |
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* @return TypeNameInterface |
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*/ |
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private function createTypeName(RuleInterface $rule): TypeNameInterface |
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{ |
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/** @var TypeNameNode $node */ |
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$node = $rule->first('> #TypeDefinitionHeader > #TypeName'); |
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return $node ? $node->toTypeName() : new Anonymous(); |
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} |
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/** |
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* @param RuleInterface $rule |
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* @return TypeInterface |
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*/ |
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private function getType(RuleInterface $rule): TypeInterface |
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{ |
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$type = TypeName::fromString(self::TYPE_DEFINITIONS[$rule->getName()]); |
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return Type::of($type); |
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} |
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/** |
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* @param ContextInterface $ctx |
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* @param RuleInterface $rule |
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* @return iterable |
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*/ |
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private function createTypeArguments(ContextInterface $ctx, RuleInterface $rule): iterable |
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{ |
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$arguments = $rule->find('> #TypeDefinitionHeader > #TypeArgumentDefinition'); |
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foreach ($arguments as $argument) { |
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$name = $argument->first('> #Name > :T_NAME')->getValue(); |
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/** @var TypeNameNode $type */ |
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$type = $argument->first('> #TypeName'); |
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yield new Argument($name, Type::of($type->toTypeName()), $ctx); |
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} |
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} |
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} |
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railt /
sdl
