Ability to re-throw resolver exceptions

docs/error-handling.md

@@ -109,6 +109,15 @@ This will make each error entry to look like this:
 ]
 ```
 
+If you prefer first resolver exception to be re-thrown, use following flags:
+```php
+use GraphQL\Error\FormattedError;
+$debug = FormattedError::INCLUDE_DEBUG_MESSAGE | FormattedError::RETHROW_RESOLVER_EXCEPTIONS;
+
+// Following will throw if there was an exception in resolver during execution:
+$result = GraphQL::executeQuery(/*args*/)->toArray($debug); 
+```
+
 # Custom Error Handling and Formatting
 It is possible to define custom **formatter** and **handler** for result errors.
 

docs/reference.md

@@ -871,6 +871,7 @@ class FormattedError
 {
     const INCLUDE_DEBUG_MESSAGE = 1;
     const INCLUDE_TRACE = 2;
+    const RETHROW_RESOLVER_EXCEPTIONS = 4;
 
     public static function setInternalErrorMessage($msg);
 

src/Error/FormattedError.php

@@ -15,6 +15,7 @@ class FormattedError
 {
     const INCLUDE_DEBUG_MESSAGE = 1;
     const INCLUDE_TRACE = 2;
+    const RETHROW_RESOLVER_EXCEPTIONS = 4;
 
     private static $internalErrorMessage = 'Internal server error';
 
@@ -30,8 +31,10 @@ class FormattedError
      * @param \Throwable $e
      * @param bool|int $debug
      * @param string $internalErrorMessage
-     *
      * @return array
+     * @throws Error
+     *
+     * @throws \Throwable
      */
     public static function createFromException($e, $debug = false, $internalErrorMessage = null)
     {
@@ -41,6 +44,12 @@ class FormattedError
             Utils::getVariableType($e)
         );
 
+        if ($debug & self::RETHROW_RESOLVER_EXCEPTIONS > 0) {
+            if (!$e instanceof Error || $e->getPrevious()) {
+                throw $e;
+            }
+        }
+
         $debug = (int) $debug;
         $internalErrorMessage = $internalErrorMessage ?: self::$internalErrorMessage;