From 0012a556ebf208c2168deb6867a06bad1c86561b Mon Sep 17 00:00:00 2001
From: jubianchi <contact@jubianchi.fr>
Date: Wed, 7 Oct 2020 09:20:47 +0200
Subject: [PATCH] fix: Fix an annotation error

---
 src/lib/Parser.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/lib/Parser.php b/src/lib/Parser.php
index d4bae57..6503d36 100644
--- a/src/lib/Parser.php
+++ b/src/lib/Parser.php
@@ -38,7 +38,7 @@ class Parser
     private string $originalLabel;
 
     /**
-     * @var callable
+     * @var callable(Result): mixed
      */
     private $action;
 
@@ -107,7 +107,12 @@ public function map(callable $mapper): self
         return $parser;
     }
 
-    public function do(?callable $action): self
+    /**
+     * @param callable(Result): mixed $action
+     *
+     * @return $this
+     */
+    public function do(callable $action): self
     {
         $parser = clone $this;
         $parser->action = $action;