From f2149dc094a92bd1aa29622f9585247d491f7a08 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <tenderlove@ruby-lang.org>
Date: Wed, 10 Jan 2024 16:27:00 -0800
Subject: [PRISM] Support repeated required parameter names.

Fixes: https://github.com/ruby/prism/issues/2062

This patch only fixes positional parameters, we still need to fix the
other cases spelled out in test/prism/fixtures/repeat_parameters.txt
---
 test/ruby/test_compile_prism.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_compile_prism.rb b/test/ruby/test_compile_prism.rb
index 99f932a238..835b3b819b 100644
--- a/test/ruby/test_compile_prism.rb
+++ b/test/ruby/test_compile_prism.rb
@@ -1299,6 +1299,10 @@ module Prism
       CODE
     end
 
+    def test_repeated_method_params
+      assert_prism_eval("def self.foo(_a, _a); _a; end; foo(1, 2)")
+    end
+
     def test_method_parameters
       assert_prism_eval(<<-CODE)
         def self.prism_test_method_parameters(a, b=1, *c, d:, e: 2, **f, &g)
-- 
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