1 files changed, 155 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Common/Exception/StackTraceFormatter.php b/vendor/open-telemetry/sdk/Common/Exception/StackTraceFormatter.php
new file mode 100644
index 000000000..675fc7626
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Common/Exception/StackTraceFormatter.php
@@ -0,0 +1,155 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Common\Exception;
+
+use function basename;
+use function count;
+use function get_class;
+use function sprintf;
+use function str_repeat;
+
+use Throwable;
+
+/**
+ * @psalm-type Frame = array{
+ *     function: string,
+ *     class: ?class-string,
+ *     file: ?string,
+ *     line: ?int,
+ * }
+ * @psalm-type Frames = non-empty-list<Frame>
+ */
+final class StackTraceFormatter
+{
+    private function __construct()
+    {
+    }
+
+    /**
+     * Formats an exception in a java-like format.
+     *
+     * @param Throwable $e exception to format
+     * @return string formatted exception
+     *
+     * @see https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Throwable.html#printStackTrace()
+     */
+    public static function format(Throwable $e): string
+    {
+        $s = '';
+        $seen = [];
+
+        /** @var Frames|null $enclosing */
+        $enclosing = null;
+        do {
+            if ($enclosing) {
+                self::writeNewline($s);
+                $s .= 'Caused by: ';
+            }
+            if (isset($seen[spl_object_id($e)])) {
+                $s .= '[CIRCULAR REFERENCE: ';
+                self::writeInlineHeader($s, $e);
+                $s .= ']';
+
+                break;
+            }
+            $seen[spl_object_id($e)] = $e;
+
+            $frames = self::frames($e);
+            self::writeInlineHeader($s, $e);
+            self::writeFrames($s, $frames, $enclosing);
+
+            $enclosing = $frames;
+        } while ($e = $e->getPrevious());
+
+        return $s;
+    }
+
+    /**
+     * @phan-suppress-next-line PhanTypeMismatchDeclaredParam
+     * @param Frames $frames
+     * @phan-suppress-next-line PhanTypeMismatchDeclaredParam
+     * @param Frames|null $enclosing
+     */
+    private static function writeFrames(string &$s, array $frames, ?array $enclosing): void
+    {
+        $n = count($frames);
+        if ($enclosing) {
+            for ($m = count($enclosing);
+                 $n && $m && $frames[$n - 1] === $enclosing[$m - 1];
+                 $n--, $m--) {
+            }
+        }
+        for ($i = 0; $i < $n; $i++) {
+            $frame = $frames[$i];
+            self::writeNewline($s, 1);
+            $s .= 'at ';
+            if ($frame['class'] !== null) {
+                $s .= self::formatName($frame['class']);
+                $s .= '.';
+            }
+            $s .= self::formatName($frame['function']);
+            $s .= '(';
+            if ($frame['file'] !== null) {
+                $s .= basename($frame['file']);
+                if ($frame['line']) {
+                    $s .= ':';
+                    $s .= $frame['line'];
+                }
+            } else {
+                $s .= 'Unknown Source';
+            }
+            $s .= ')';
+        }
+        if ($n !== count($frames)) {
+            self::writeNewline($s, 1);
+            $s .= sprintf('... %d more', count($frames) - $n);
+        }
+    }
+
+    private static function writeInlineHeader(string &$s, Throwable $e): void
+    {
+        $s .= self::formatName(get_class($e));
+        if ($e->getMessage() !== '') {
+            $s .= ': ';
+            $s .= $e->getMessage();
+        }
+    }
+
+    private static function writeNewline(string &$s, int $indent = 0): void
+    {
+        $s .= "\n";
+        $s .= str_repeat("\t", $indent);
+    }
+
+    /**
+     * @return Frames
+     *
+     * @psalm-suppress PossiblyUndefinedArrayOffset
+     */
+    private static function frames(Throwable $e): array
+    {
+        $frames = [];
+        $trace = $e->getTrace();
+        $traceCount = count($trace);
+        for ($i = 0; $i < $traceCount + 1; $i++) {
+            $frames[] = [
+                'function' => $trace[$i]['function'] ?? '{main}',
+                'class' => $trace[$i]['class'] ?? null,
+                'file' => $trace[$i - 1]['file'] ?? null,
+                'line' => $trace[$i - 1]['line'] ?? null,
+            ];
+        }
+        $frames[0]['file'] = $e->getFile();
+        $frames[0]['line'] = $e->getLine();
+
+        /** @var Frames $frames */
+        return $frames;
+    }
+
+    private static function formatName(string $name): string
+    {
+        return strtr($name, ['\\' => '.']);
+    }
+}