array.c: yield blockarg in collect

* array.c (rb_ary_collect): yield in block argument semantics
  always to splat array elements to lambda, for the backward
  compatibility.  [ruby-core:86362] [Bug #14639]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index 1ff13c7736..6f4999386f 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -535,6 +535,8 @@ class TestArray < Test::Unit::TestCase
     # Enumerable#collect without block returns an Enumerator.
     #assert_equal([1, 2, 3], @cls[1, 2, 3].collect)
     assert_kind_of Enumerator, @cls[1, 2, 3].collect
+
+    assert_equal([[1, 2, 3]], [[1, 2, 3]].collect(&->(a, b, c) {[a, b, c]}))
   end
 
   # also update map!