From 9e5b779abc74e7d4a8045a4b96fcf7802f4bbaf0 Mon Sep 17 00:00:00 2001
From: jordanbrauer <18744334+jordanbrauer@users.noreply.github.com>
Date: Wed, 16 Jun 2021 00:52:31 -0500
Subject: [PATCH] feat: add helper function for mapping a function's arguments

---
 src/Support/Reflection.php | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/Support/Reflection.php b/src/Support/Reflection.php
index c25709b9..1fac05b7 100644
--- a/src/Support/Reflection.php
+++ b/src/Support/Reflection.php
@@ -153,4 +153,21 @@ final class Reflection
 
         return $name;
     }
+
+    /**
+     * Receive a map of function argument names to their types.
+     *
+     * @return array<string, string>
+     */
+    public static function getFunctionArguments(Closure $function): array
+    {
+        $parameters = (new ReflectionFunction($function))->getParameters();
+        $arguments = [];
+
+        foreach ($parameters as $parameter) {
+            $arguments[$parameter->getName()] = ($parameter->hasType()) ? $parameter->getType() : 'mixed';
+        }
+
+        return $arguments;
+    }
 }