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<?php
declare(strict_types=1);
/**
* This file is part of phpDocumentor.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @link http://phpdoc.org
*/
namespace phpDocumentor\Reflection\DocBlock;
use phpDocumentor\Reflection\DocBlock;
use phpDocumentor\Reflection\DocBlock\Tags\Formatter;
use phpDocumentor\Reflection\DocBlock\Tags\Formatter\PassthroughFormatter;
use function sprintf;
use function str_repeat;
use function str_replace;
use function strlen;
use function wordwrap;
/**
* Converts a DocBlock back from an object to a complete DocComment including Asterisks.
*/
class Serializer
{
/** @var string The string to indent the comment with. */
protected $indentString = ' ';
/** @var int The number of times the indent string is repeated. */
protected $indent = 0;
/** @var bool Whether to indent the first line with the given indent amount and string. */
protected $isFirstLineIndented = true;
/** @var int|null The max length of a line. */
protected $lineLength;
/** @var Formatter A custom tag formatter. */
protected $tagFormatter;
/**
* Create a Serializer instance.
*
* @param int $indent The number of times the indent string is repeated.
* @param string $indentString The string to indent the comment with.
* @param bool $indentFirstLine Whether to indent the first line.
* @param int|null $lineLength The max length of a line or NULL to disable line wrapping.
* @param Formatter $tagFormatter A custom tag formatter, defaults to PassthroughFormatter.
*/
public function __construct(
int $indent = 0,
string $indentString = ' ',
bool $indentFirstLine = true,
?int $lineLength = null,
?Formatter $tagFormatter = null
) {
$this->indent = $indent;
$this->indentString = $indentString;
$this->isFirstLineIndented = $indentFirstLine;
$this->lineLength = $lineLength;
$this->tagFormatter = $tagFormatter ?: new PassthroughFormatter();
}
/**
* Generate a DocBlock comment.
*
* @param DocBlock $docblock The DocBlock to serialize.
*
* @return string The serialized doc block.
*/
public function getDocComment(DocBlock $docblock) : string
{
$indent = str_repeat($this->indentString, $this->indent);
$firstIndent = $this->isFirstLineIndented ? $indent : '';
// 3 === strlen(' * ')
$wrapLength = $this->lineLength ? $this->lineLength - strlen($indent) - 3 : null;
$text = $this->removeTrailingSpaces(
$indent,
$this->addAsterisksForEachLine(
$indent,
$this->getSummaryAndDescriptionTextBlock($docblock, $wrapLength)
)
);
$comment = $firstIndent . "/**\n";
if ($text) {
$comment .= $indent . ' * ' . $text . "\n";
$comment .= $indent . " *\n";
}
$comment = $this->addTagBlock($docblock, $wrapLength, $indent, $comment);
return $comment . $indent . ' */';
}
private function removeTrailingSpaces(string $indent, string $text) : string
{
return str_replace(
sprintf("\n%s * \n", $indent),
sprintf("\n%s *\n", $indent),
$text
);
}
private function addAsterisksForEachLine(string $indent, string $text) : string
{
return str_replace(
"\n",
sprintf("\n%s * ", $indent),
$text
);
}
private function getSummaryAndDescriptionTextBlock(DocBlock $docblock, ?int $wrapLength) : string
{
$text = $docblock->getSummary() . ((string) $docblock->getDescription() ? "\n\n" . $docblock->getDescription()
: '');
if ($wrapLength !== null) {
$text = wordwrap($text, $wrapLength);
return $text;
}
return $text;
}
private function addTagBlock(DocBlock $docblock, ?int $wrapLength, string $indent, string $comment) : string
{
foreach ($docblock->getTags() as $tag) {
$tagText = $this->tagFormatter->format($tag);
if ($wrapLength !== null) {
$tagText = wordwrap($tagText, $wrapLength);
}
$tagText = str_replace(
"\n",
sprintf("\n%s * ", $indent),
$tagText
);
$comment .= sprintf("%s * %s\n", $indent, $tagText);
}
return $comment;
}
}
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