nobu	2018-11-22 18:18:40 +0900 (Thu, 22 Nov 2018)

  New Revision: 65923

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=65923

  Log:
    Revert r63030
    
    * array.c (rb_ary_collect): no longer splat sole array for lambda.
      [ruby-core:89734] [Bug #15285]

  Modified files:
    trunk/array.c
    trunk/test/ruby/test_array.rb
Index: array.c
===================================================================
--- array.c	(revision 65922)
+++ array.c	(revision 65923)
@@ -3010,7 +3010,7 @@ rb_ary_collect(VALUE ary) https://github.com/ruby/ruby/blob/trunk/array.c#L3010
     RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
     collect = rb_ary_new2(RARRAY_LEN(ary));
     for (i = 0; i < RARRAY_LEN(ary); i++) {
-	rb_ary_push(collect, rb_yield_force_blockarg(RARRAY_AREF(ary, i)));
+	rb_ary_push(collect, rb_yield(RARRAY_AREF(ary, i)));
     }
     return collect;
 }
Index: test/ruby/test_array.rb
===================================================================
--- test/ruby/test_array.rb	(revision 65922)
+++ test/ruby/test_array.rb	(revision 65923)
@@ -549,7 +549,9 @@ class TestArray < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_array.rb#L549
 
     assert_kind_of Enumerator, @cls[1, 2, 3].collect
 
-    assert_equal([[1, 2, 3]], [[1, 2, 3]].collect(&->(a, b, c) {[a, b, c]}))
+    assert_raise(ArgumentError) {
+      assert_equal([[1, 2, 3]], [[1, 2, 3]].collect(&->(a, b, c) {[a, b, c]}))
+    }
   end
 
   # also update map!

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