From 91255c7e9fbcfabae9b9f42a4016c02a45d7c5c9 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 26 Mar 2022 22:57:41 +0900
Subject: [PATCH] mrblib/array.rb: `Array#<=>` to handle `NoMethodError`
 exception.

Array element may not respond to `<=>` method.
---
 mrblib/array.rb | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/mrblib/array.rb b/mrblib/array.rb
index 6b4f74b96..cef944f8a 100644
--- a/mrblib/array.rb
+++ b/mrblib/array.rb
@@ -167,10 +167,14 @@ class Array
     n = other.size
     len = n if len > n
     i = 0
-    while i < len
-      n = (self[i] <=> other[i])
-      return n if n.nil? || n != 0
-      i += 1
+    begin
+      while i < len
+        n = (self[i] <=> other[i])
+        return n if n.nil? || n != 0
+        i += 1
+      end
+    rescue NoMethodError
+      return nil
     end
     len = self.size - other.size
     if len == 0