* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace SebastianBergmann\Complexity; use function assert; use function file_get_contents; use PhpParser\Error; use PhpParser\Node; use PhpParser\NodeTraverser; use PhpParser\NodeVisitor\NameResolver; use PhpParser\NodeVisitor\ParentConnectingVisitor; use PhpParser\ParserFactory; final class Calculator { /** * @throws RuntimeException */ public function calculateForSourceFile(string $sourceFile): ComplexityCollection { return $this->calculateForSourceString(file_get_contents($sourceFile)); } /** * @throws RuntimeException */ public function calculateForSourceString(string $source): ComplexityCollection { try { $nodes = (new ParserFactory)->createForHostVersion()->parse($source); assert($nodes !== null); return $this->calculateForAbstractSyntaxTree($nodes); // @codeCoverageIgnoreStart } catch (Error $error) { throw new RuntimeException( $error->getMessage(), $error->getCode(), $error, ); } // @codeCoverageIgnoreEnd } /** * @param Node[] $nodes * * @throws RuntimeException */ public function calculateForAbstractSyntaxTree(array $nodes): ComplexityCollection { $traverser = new NodeTraverser; $complexityCalculatingVisitor = new ComplexityCalculatingVisitor(true); $traverser->addVisitor(new NameResolver); $traverser->addVisitor(new ParentConnectingVisitor); $traverser->addVisitor($complexityCalculatingVisitor); try { /* @noinspection UnusedFunctionResultInspection */ $traverser->traverse($nodes); // @codeCoverageIgnoreStart } catch (Error $error) { throw new RuntimeException( $error->getMessage(), $error->getCode(), $error, ); } // @codeCoverageIgnoreEnd return $complexityCalculatingVisitor->result(); } }