fix splat without assignment; fix #2781

The parser generates NODE_NIL for tSTAR without argument in masgns. The
codegen didn't handle that.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/t/syntax.rb b/test/t/syntax.rb
index d21748de1..5ce4e0a63 100644
--- a/test/t/syntax.rb
+++ b/test/t/syntax.rb
@@ -213,6 +213,12 @@ assert('Splat and multiple assignment in for') do
   assert_equal 7, f
 end
 
+assert('Splat without assignment') do
+  * = [0]
+  a, * = [1, 2]
+  assert_equal 1, a
+end
+
 assert('Return values of case statements') do
   a = [] << case 1
   when 3 then 2