1 files changed, 109 insertions, 0 deletions
diff --git a/vendor/sebastian/global-state/src/CodeExporter.php b/vendor/sebastian/global-state/src/CodeExporter.php
new file mode 100644
index 000000000..71cdbf504
--- /dev/null
+++ b/vendor/sebastian/global-state/src/CodeExporter.php
@@ -0,0 +1,109 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/global-state.
+ *
+ * (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\GlobalState;
+
+use const PHP_EOL;
+use function is_array;
+use function is_scalar;
+use function serialize;
+use function sprintf;
+use function var_export;
+
+/**
+ * Exports parts of a Snapshot as PHP code.
+ */
+final class CodeExporter
+{
+    public function constants(Snapshot $snapshot): string
+    {
+        $result = '';
+
+        foreach ($snapshot->constants() as $name => $value) {
+            $result .= sprintf(
+                'if (!defined(\'%s\')) define(\'%s\', %s);' . "\n",
+                $name,
+                $name,
+                $this->exportVariable($value)
+            );
+        }
+
+        return $result;
+    }
+
+    public function globalVariables(Snapshot $snapshot): string
+    {
+        $result = <<<'EOT'
+call_user_func(
+    function ()
+    {
+        foreach (array_keys($GLOBALS) as $key) {
+            unset($GLOBALS[$key]);
+        }
+    }
+);
+
+
+EOT;
+
+        foreach ($snapshot->globalVariables() as $name => $value) {
+            $result .= sprintf(
+                '$GLOBALS[%s] = %s;' . PHP_EOL,
+                $this->exportVariable($name),
+                $this->exportVariable($value)
+            );
+        }
+
+        return $result;
+    }
+
+    public function iniSettings(Snapshot $snapshot): string
+    {
+        $result = '';
+
+        foreach ($snapshot->iniSettings() as $key => $value) {
+            $result .= sprintf(
+                '@ini_set(%s, %s);' . "\n",
+                $this->exportVariable($key),
+                $this->exportVariable($value)
+            );
+        }
+
+        return $result;
+    }
+
+    private function exportVariable($variable): string
+    {
+        if (is_scalar($variable) || null === $variable ||
+            (is_array($variable) && $this->arrayOnlyContainsScalars($variable))) {
+            return var_export($variable, true);
+        }
+
+        return 'unserialize(' . var_export(serialize($variable), true) . ')';
+    }
+
+    private function arrayOnlyContainsScalars(array $array): bool
+    {
+        $result = true;
+
+        foreach ($array as $element) {
+            if (is_array($element)) {
+                $result = $this->arrayOnlyContainsScalars($element);
+            } elseif (!is_scalar($element) && null !== $element) {
+                $result = false;
+            }
+
+            if ($result === false) {
+                break;
+            }
+        }
+
+        return $result;
+    }
+}