* eval.c (proc_invoke): single array value to normal Proc#call

  (i.e. not via lambda call), should be treated just like yield.
  [ruby-dev:21726]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4860 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 16 insertions, 1 deletions

diff --git a/parse.y b/parse.y
index 75fa33e820..5c43cd81da 100644
--- a/parse.y
+++ b/parse.y
@@ -5377,7 +5377,22 @@ static NODE *
 new_yield(node)
     NODE *node;
 {
-    return NEW_YIELD(node, node ? Qtrue : Qfalse);
+    long state = Qtrue;
+
+    if (node) {
+        no_blockarg(node);
+        if (nd_type(node) == NODE_ARRAY && node->nd_next == 0) {
+            node = node->nd_head;
+            state = Qfalse;
+        }
+        if (node && nd_type(node) == NODE_SPLAT) {
+            state = Qtrue;
+        }
+    }
+    else {
+        state = Qfalse;
+    }
+    return NEW_YIELD(node, state);
 }
 
 static NODE*