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<?php declare(strict_types=1);
/*
* This file is part of sebastian/lines-of-code.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\LinesOfCode;
use function array_merge;
use function array_unique;
use function count;
use PhpParser\Comment;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\NodeVisitorAbstract;
final class LineCountingVisitor extends NodeVisitorAbstract
{
/**
* @var int
*/
private $linesOfCode;
/**
* @var Comment[]
*/
private $comments = [];
/**
* @var int[]
*/
private $linesWithStatements = [];
public function __construct(int $linesOfCode)
{
$this->linesOfCode = $linesOfCode;
}
public function enterNode(Node $node): void
{
$this->comments = array_merge($this->comments, $node->getComments());
if (!$node instanceof Expr) {
return;
}
$this->linesWithStatements[] = $node->getStartLine();
}
public function result(): LinesOfCode
{
$commentLinesOfCode = 0;
foreach ($this->comments() as $comment) {
$commentLinesOfCode += ($comment->getEndLine() - $comment->getStartLine() + 1);
}
return new LinesOfCode(
$this->linesOfCode,
$commentLinesOfCode,
$this->linesOfCode - $commentLinesOfCode,
count(array_unique($this->linesWithStatements))
);
}
/**
* @return Comment[]
*/
private function comments(): array
{
$comments = [];
foreach ($this->comments as $comment) {
$comments[$comment->getStartLine() . '_' . $comment->getStartTokenPos() . '_' . $comment->getEndLine() . '_' . $comment->getEndTokenPos()] = $comment;
}
return $comments;
}
}