93 lines
2.3 KiB
PHP
93 lines
2.3 KiB
PHP
<?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 assert;
|
|
use function count;
|
|
use PhpParser\Comment;
|
|
use PhpParser\Node;
|
|
use PhpParser\Node\Expr;
|
|
use PhpParser\NodeVisitorAbstract;
|
|
|
|
final class LineCountingVisitor extends NodeVisitorAbstract
|
|
{
|
|
/**
|
|
* @psalm-var non-negative-int
|
|
*/
|
|
private readonly int $linesOfCode;
|
|
|
|
/**
|
|
* @var Comment[]
|
|
*/
|
|
private array $comments = [];
|
|
|
|
/**
|
|
* @var int[]
|
|
*/
|
|
private array $linesWithStatements = [];
|
|
|
|
/**
|
|
* @psalm-param non-negative-int $linesOfCode
|
|
*/
|
|
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);
|
|
}
|
|
|
|
$nonCommentLinesOfCode = $this->linesOfCode - $commentLinesOfCode;
|
|
$logicalLinesOfCode = count(array_unique($this->linesWithStatements));
|
|
|
|
assert($commentLinesOfCode >= 0);
|
|
assert($nonCommentLinesOfCode >= 0);
|
|
assert($logicalLinesOfCode >= 0);
|
|
|
|
return new LinesOfCode(
|
|
$this->linesOfCode,
|
|
$commentLinesOfCode,
|
|
$nonCommentLinesOfCode,
|
|
$logicalLinesOfCode,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @return Comment[]
|
|
*/
|
|
private function comments(): array
|
|
{
|
|
$comments = [];
|
|
|
|
foreach ($this->comments as $comment) {
|
|
$comments[$comment->getStartLine() . '_' . $comment->getStartTokenPos() . '_' . $comment->getEndLine() . '_' . $comment->getEndTokenPos()] = $comment;
|
|
}
|
|
|
|
return $comments;
|
|
}
|
|
}
|