Avoid garbage memory references on PHP < 7.4

Author: clue

src/DnsConnector.php

@@ -59,6 +59,26 @@ function ($resolve, $reject) use (&$promise, &$resolved, $uri, $connector, $host
                                 $e->getCode(),
                                 $e
                             );
+
+                            // avoid garbage references by replacing all closures in call stack.
+                            // what a lovely piece of code!
+                            $r = new \ReflectionProperty('Exception', 'trace');
+                            $r->setAccessible(true);
+                            $trace = $r->getValue($e);
+
+                            // Exception trace arguments are not available on some PHP 7.4 installs
+                            // @codeCoverageIgnoreStart
+                            foreach ($trace as &$one) {
+                                if (isset($one['args'])) {
+                                    foreach ($one['args'] as &$arg) {
+                                        if ($arg instanceof \Closure) {
+                                            $arg = 'Object(' . \get_class($arg) . ')';
+                                        }
+                                    }
+                                }
+                            }
+                            // @codeCoverageIgnoreEnd
+                            $r->setValue($e, $trace);
                         }
 
                         throw $e;

src/SecureConnector.php

@@ -74,6 +74,26 @@ public function connect($uri)
                     $e->getCode(),
                     $e
                 );
+
+                // avoid garbage references by replacing all closures in call stack.
+                // what a lovely piece of code!
+                $r = new \ReflectionProperty('Exception', 'trace');
+                $r->setAccessible(true);
+                $trace = $r->getValue($e);
+
+                // Exception trace arguments are not available on some PHP 7.4 installs
+                // @codeCoverageIgnoreStart
+                foreach ($trace as &$one) {
+                    if (isset($one['args'])) {
+                        foreach ($one['args'] as &$arg) {
+                            if ($arg instanceof \Closure) {
+                                $arg = 'Object(' . \get_class($arg) . ')';
+                            }
+                        }
+                    }
+                }
+                // @codeCoverageIgnoreEnd
+                $r->setValue($e, $trace);
             }
 
             throw $e;