Файл: vendor/sebastian/complexity/src/Visitor/ComplexityCalculatingVisitor.php
Строк: 130
<?php declare(strict_types=1);
/*
* This file is part of sebastian/complexity.
*
* (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 SebastianBergmannComplexity;
use function assert;
use function is_array;
use PhpParserNode;
use PhpParserNodeName;
use PhpParserNodeStmt;
use PhpParserNodeStmtClass_;
use PhpParserNodeStmtClassMethod;
use PhpParserNodeStmtFunction_;
use PhpParserNodeStmtTrait_;
use PhpParserNodeTraverser;
use PhpParserNodeVisitorAbstract;
final class ComplexityCalculatingVisitor extends NodeVisitorAbstract
{
/**
* @psalm-var list<Complexity>
*/
private $result = [];
/**
* @var bool
*/
private $shortCircuitTraversal;
public function __construct(bool $shortCircuitTraversal)
{
$this->shortCircuitTraversal = $shortCircuitTraversal;
}
public function enterNode(Node $node): ?int
{
if (!$node instanceof ClassMethod && !$node instanceof Function_) {
return null;
}
if ($node instanceof ClassMethod) {
$name = $this->classMethodName($node);
} else {
$name = $this->functionName($node);
}
$statements = $node->getStmts();
assert(is_array($statements));
$this->result[] = new Complexity(
$name,
$this->cyclomaticComplexity($statements)
);
if ($this->shortCircuitTraversal) {
return NodeTraverser::DONT_TRAVERSE_CHILDREN;
}
return null;
}
public function result(): ComplexityCollection
{
return ComplexityCollection::fromList(...$this->result);
}
/**
* @param Stmt[] $statements
*/
private function cyclomaticComplexity(array $statements): int
{
$traverser = new NodeTraverser;
$cyclomaticComplexityCalculatingVisitor = new CyclomaticComplexityCalculatingVisitor;
$traverser->addVisitor($cyclomaticComplexityCalculatingVisitor);
/* @noinspection UnusedFunctionResultInspection */
$traverser->traverse($statements);
return $cyclomaticComplexityCalculatingVisitor->cyclomaticComplexity();
}
private function classMethodName(ClassMethod $node): string
{
$parent = $node->getAttribute('parent');
assert($parent instanceof Class_ || $parent instanceof Trait_);
assert(isset($parent->namespacedName));
assert($parent->namespacedName instanceof Name);
return $parent->namespacedName->toString() . '::' . $node->name->toString();
}
private function functionName(Function_ $node): string
{
assert(isset($node->namespacedName));
assert($node->namespacedName instanceof Name);
return $node->namespacedName->toString();
}
}