Bug #6419: fix cmdarg begin

* parse.y (primary): begin/end block should be isolated from outside.
  [ruby-dev:45631][Bug #6419]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35620 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/parse.y b/parse.y
index 7dd3a8a159..098e946abd 100644
--- a/parse.y
+++ b/parse.y
@@ -2684,6 +2684,8 @@ primary		: literal
 		    }
 		| k_begin
 		    {
+			$<val>1 = cmdarg_stack;
+			cmdarg_stack = 0;
 		    /*%%%*/
 			$<num>$ = ruby_sourceline;
 		    /*%
@@ -2692,6 +2694,7 @@ primary		: literal
 		  bodystmt
 		  k_end
 		    {
+			cmdarg_stack = $<val>1;
 		    /*%%%*/
 			if ($3 == NULL) {
 			    $$ = NEW_NIL();