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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\Backend; |
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use Psr\Log\LoggerAwareInterface; |
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use Psr\Log\LoggerAwareTrait; |
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use Railt\Io\Readable; |
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use Railt\Reflection\Contracts\Document as DocumentInterface; |
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use Railt\Reflection\Contracts\Reflection; |
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use Railt\Reflection\Document; |
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use Railt\SDL\Exception\VmException; |
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use Railt\SDL\Frontend\IR\JoinedOpcode; |
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/** |
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* Class Vm |
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*/ |
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class Vm implements LoggerAwareInterface |
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{ |
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use LoggerAwareTrait; |
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/** |
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* @var Reflection |
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*/ |
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private $root; |
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/** |
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* Process constructor. |
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* @param Reflection $root |
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*/ |
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public function __construct(Reflection $root) |
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{ |
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$this->root = $root; |
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} |
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/** |
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* @param Readable $file |
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* @param iterable $opcodes |
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* @return Document|DocumentInterface |
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* @throws \Railt\Io\Exception\ExternalFileException |
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*/ |
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public function run(Readable $file, iterable $opcodes): Document |
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{ |
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$runtime = new Runtime($this->root, $file); |
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/** |
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* @var JoinedOpcode $opcode |
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* @var mixed $result |
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*/ |
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foreach ($runtime->execute($opcodes) as $opcode => $result) { |
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if ($this->logger) { |
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$value = \get_class($result) . '#' . \spl_object_hash($result); |
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$message = \sprintf('%4s = %s', '#' . $opcode->getId(), $value); |
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$this->logger->debug($message); |
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} |
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} |
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$result = $runtime->get(0); |
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if ($result instanceof DocumentInterface) { |
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return $result; |
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} |
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throw new VmException($opcode, 'Zero VM Stack index contains a non-compatible with %s value', |
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DocumentInterface::class); |
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} |
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} |
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railt /
sdl
Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects.