From 37356b713ceb0d159f946269c8479854ceb2acee Mon Sep 17 00:00:00 2001
From: Nick Dower <nicholasdower@gmail.com>
Date: Thu, 2 Jan 2025 17:24:55 +0100
Subject: [PATCH] YJIT: Add crashing test for yielding keyword args

Code like the following is crashing for us on 3.4.1:

```ruby
def a(&) = yield(x: 0)

1000.times { a { |x:| x } }
```

Crash:

```
ruby: YJIT has panicked. More info to follow...
thread '<unnamed>' panicked at ./yjit/src/codegen.rs:8018:13:
assertion `left == right` failed
  left: 0
 right: 1
```

Co-authored-by: Dani Acherkan <dtl.117@gmail.com>
---
 bootstraptest/test_yjit.rb | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/bootstraptest/test_yjit.rb b/bootstraptest/test_yjit.rb
index 6a1aebccd7..8c6171bd0a 100644
--- a/bootstraptest/test_yjit.rb
+++ b/bootstraptest/test_yjit.rb
@@ -37,27 +37,35 @@ assert_equal "ok", %q{
 }
 
 # test discarding extra yield arguments
-assert_equal "2210150001501015", %q{
+assert_equal "22131300500015901015", %q{
   def splat_kw(ary) = yield *ary, a: 1
 
   def splat(ary) = yield *ary
 
-  def kw = yield 1, 2, a: 0
+  def kw = yield 1, 2, a: 3
+
+  def kw_only = yield a: 0
 
   def simple = yield 0, 1
 
+  def none = yield
+
   def calls
     [
       splat([1, 1, 2]) { |x, y| x + y },
       splat([1, 1, 2]) { |y, opt = raise| opt + y},
       splat_kw([0, 1]) { |a:| a },
       kw { |a:| a },
-      kw { |a| a },
+      kw { |one| one },
+      kw { |one, a:| a },
+      kw_only { |a:| a },
+      kw_only { |a: 1| a },
       simple { 5.itself },
       simple { |a| a },
       simple { |opt = raise| opt },
       simple { |*rest| rest },
       simple { |opt_kw: 5| opt_kw },
+      none { |a: 9| a },
       # autosplat ineractions
       [0, 1, 2].yield_self { |a, b| [a, b] },
       [0, 1, 2].yield_self { |a, opt = raise| [a, opt] },