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);
+    }
+}