diff options
Diffstat (limited to 'vendor/sebastian/complexity/src/Calculator.php')
-rw-r--r-- | vendor/sebastian/complexity/src/Calculator.php | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/vendor/sebastian/complexity/src/Calculator.php b/vendor/sebastian/complexity/src/Calculator.php new file mode 100644 index 000000000..9abdcd169 --- /dev/null +++ b/vendor/sebastian/complexity/src/Calculator.php @@ -0,0 +1,88 @@ +<?php declare(strict_types=1); +/* + * This file is part of sebastian/complexity. + * + * (c) Sebastian Bergmann <[email protected]> + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ +namespace SebastianBergmann\Complexity; + +use PhpParser\Error; +use PhpParser\Lexer; +use PhpParser\Node; +use PhpParser\NodeTraverser; +use PhpParser\NodeVisitor\NameResolver; +use PhpParser\NodeVisitor\ParentConnectingVisitor; +use PhpParser\Parser; +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 = $this->parser()->parse($source); + + assert($nodes !== null); + + return $this->calculateForAbstractSyntaxTree($nodes); + + // @codeCoverageIgnoreStart + } catch (Error $error) { + throw new RuntimeException( + $error->getMessage(), + (int) $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(), + (int) $error->getCode(), + $error + ); + } + // @codeCoverageIgnoreEnd + + return $complexityCalculatingVisitor->result(); + } + + private function parser(): Parser + { + return (new ParserFactory)->create(ParserFactory::PREFER_PHP7, new Lexer); + } +} |