1 files changed, 183 insertions, 0 deletions
diff --git a/vendor/phpunit/php-code-coverage/src/StaticAnalysis/CachingFileAnalyser.php b/vendor/phpunit/php-code-coverage/src/StaticAnalysis/CachingFileAnalyser.php
new file mode 100644
index 000000000..cdaad5613
--- /dev/null
+++ b/vendor/phpunit/php-code-coverage/src/StaticAnalysis/CachingFileAnalyser.php
@@ -0,0 +1,183 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-code-coverage.
+ *
+ * (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\CodeCoverage\StaticAnalysis;
+
+use function assert;
+use function crc32;
+use function file_get_contents;
+use function file_put_contents;
+use function is_file;
+use function serialize;
+use GlobIterator;
+use SebastianBergmann\CodeCoverage\Util\Filesystem;
+use SplFileInfo;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
+final class CachingFileAnalyser implements FileAnalyser
+{
+    /**
+     * @var ?string
+     */
+    private static $cacheVersion;
+
+    /**
+     * @var FileAnalyser
+     */
+    private $analyser;
+
+    /**
+     * @var array
+     */
+    private $cache = [];
+
+    /**
+     * @var string
+     */
+    private $directory;
+
+    public function __construct(string $directory, FileAnalyser $analyser)
+    {
+        Filesystem::createDirectory($directory);
+
+        $this->analyser  = $analyser;
+        $this->directory = $directory;
+
+        if (self::$cacheVersion === null) {
+            $this->calculateCacheVersion();
+        }
+    }
+
+    public function classesIn(string $filename): array
+    {
+        if (!isset($this->cache[$filename])) {
+            $this->process($filename);
+        }
+
+        return $this->cache[$filename]['classesIn'];
+    }
+
+    public function traitsIn(string $filename): array
+    {
+        if (!isset($this->cache[$filename])) {
+            $this->process($filename);
+        }
+
+        return $this->cache[$filename]['traitsIn'];
+    }
+
+    public function functionsIn(string $filename): array
+    {
+        if (!isset($this->cache[$filename])) {
+            $this->process($filename);
+        }
+
+        return $this->cache[$filename]['functionsIn'];
+    }
+
+    /**
+     * @psalm-return array{linesOfCode: int, commentLinesOfCode: int, nonCommentLinesOfCode: int}
+     */
+    public function linesOfCodeFor(string $filename): array
+    {
+        if (!isset($this->cache[$filename])) {
+            $this->process($filename);
+        }
+
+        return $this->cache[$filename]['linesOfCodeFor'];
+    }
+
+    public function executableLinesIn(string $filename): array
+    {
+        if (!isset($this->cache[$filename])) {
+            $this->process($filename);
+        }
+
+        return $this->cache[$filename]['executableLinesIn'];
+    }
+
+    public function ignoredLinesFor(string $filename): array
+    {
+        if (!isset($this->cache[$filename])) {
+            $this->process($filename);
+        }
+
+        return $this->cache[$filename]['ignoredLinesFor'];
+    }
+
+    public function process(string $filename): void
+    {
+        $cache = $this->read($filename);
+
+        if ($cache !== false) {
+            $this->cache[$filename] = $cache;
+
+            return;
+        }
+
+        $this->cache[$filename] = [
+            'classesIn'         => $this->analyser->classesIn($filename),
+            'traitsIn'          => $this->analyser->traitsIn($filename),
+            'functionsIn'       => $this->analyser->functionsIn($filename),
+            'linesOfCodeFor'    => $this->analyser->linesOfCodeFor($filename),
+            'ignoredLinesFor'   => $this->analyser->ignoredLinesFor($filename),
+            'executableLinesIn' => $this->analyser->executableLinesIn($filename),
+        ];
+
+        $this->write($filename, $this->cache[$filename]);
+    }
+
+    /**
+     * @return mixed
+     */
+    private function read(string $filename)
+    {
+        $cacheFile = $this->cacheFile($filename);
+
+        if (!is_file($cacheFile)) {
+            return false;
+        }
+
+        return unserialize(
+            file_get_contents($cacheFile),
+            ['allowed_classes' => false]
+        );
+    }
+
+    /**
+     * @param mixed $data
+     */
+    private function write(string $filename, $data): void
+    {
+        file_put_contents(
+            $this->cacheFile($filename),
+            serialize($data)
+        );
+    }
+
+    private function cacheFile(string $filename): string
+    {
+        return $this->directory . DIRECTORY_SEPARATOR . hash('sha256', $filename . crc32(file_get_contents($filename)) . self::$cacheVersion);
+    }
+
+    private function calculateCacheVersion(): void
+    {
+        $buffer = '';
+
+        foreach (new GlobIterator(__DIR__ . '/*.php') as $file) {
+            assert($file instanceof SplFileInfo);
+
+            $buffer .= file_get_contents($file->getPathname());
+        }
+
+        self::$cacheVersion = (string) crc32($buffer);
+    }
+}