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<?php |
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declare(strict_types=1); |
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namespace Genkgo\Mail\Stream; |
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use Genkgo\Mail\StreamInterface; |
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final class LazyStream implements StreamInterface |
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{ |
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/** |
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* @var \Closure |
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*/ |
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private $callback; |
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/** |
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* @var StreamInterface |
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*/ |
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private $decoratedStream; |
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/** |
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* @param \Closure $callback |
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*/ |
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public function __construct(\Closure $callback) |
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{ |
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$this->callback = $callback; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return $this->getStream()->__toString(); |
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} |
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public function close(): void |
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{ |
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$this->getStream()->close(); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function detach() |
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{ |
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return $this->getStream()->detach(); |
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} |
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/** |
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* @return int|null |
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*/ |
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public function getSize(): ?int |
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{ |
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return $this->getStream()->getSize(); |
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} |
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/** |
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* @return int |
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* @throws \RuntimeException |
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*/ |
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public function tell(): int |
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{ |
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return $this->getStream()->tell(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function eof(): bool |
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{ |
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return $this->getStream()->eof(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isSeekable(): bool |
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{ |
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return $this->getStream()->isSeekable(); |
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} |
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/** |
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* @param int $offset |
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* @param int $whence |
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* @return int |
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*/ |
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public function seek(int $offset, int $whence = SEEK_SET): int |
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{ |
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return $this->getStream()->seek($offset, $whence); |
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} |
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/** |
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* @return bool |
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*/ |
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public function rewind(): bool |
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{ |
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return $this->getStream()->rewind(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isWritable(): bool |
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{ |
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return false; |
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} |
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/** |
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* @param string $string |
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* @return int |
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*/ |
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public function write($string): int |
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{ |
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throw new \RuntimeException('Cannot write to stream'); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isReadable(): bool |
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{ |
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return true; |
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} |
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/** |
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* @param int $length |
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* @return string |
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*/ |
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2 |
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public function read(int $length): string |
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{ |
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return $this->getStream()->read($length); |
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} |
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/** |
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* @return string |
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*/ |
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public function getContents(): string |
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{ |
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return $this->getStream()->getContents(); |
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} |
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/** |
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* @param array<int, string> $keys |
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* @return array<string, mixed> |
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*/ |
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public function getMetadata(array $keys = []): array |
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{ |
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return $this->getStream()->getMetadata(); |
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} |
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151
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/** |
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152
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* @return StreamInterface |
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153
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*/ |
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154
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59 |
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private function getStream(): StreamInterface |
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155
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{ |
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156
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59 |
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if ($this->decoratedStream === null) { |
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157
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59 |
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$callback = $this->callback; |
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$this->decoratedStream = $callback(); |
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} |
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161
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return $this->decoratedStream; |
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} |
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} |
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genkgo /
mail
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