compile.c: move expansion of massign

* compile.c (iseq_compile_each): move expansion for massign to
  variable of for-loop from the parser, to reduce method calls on
  intermediate objects.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50398 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 19 deletions

diff --git a/parse.y b/parse.y
index 7e85d70c1e..6e3e54efa0 100644
--- a/parse.y
+++ b/parse.y
@@ -2909,25 +2909,7 @@ primary		: literal
 			NODE *args, *scope;
 
 			if (nd_type($2) == NODE_MASGN) {
-			    /* if args.length == 1 && args[0].kind_of?(Array)
-			     *   args = args[0]
-			     * end
-			     */
-			    NODE *one = NEW_LIST(NEW_LIT(INT2FIX(1)));
-			    NODE *zero = NEW_LIST(NEW_LIT(INT2FIX(0)));
-			    m->nd_next = block_append(
-				NEW_IF(
-				    NEW_NODE(NODE_AND,
-					     NEW_CALL(NEW_CALL(NEW_DVAR(id), idLength, 0),
-						      idEq, one),
-					     NEW_CALL(NEW_CALL(NEW_DVAR(id), idAREF, zero),
-						      rb_intern("kind_of?"), NEW_LIST(NEW_LIT(rb_cArray))),
-					     0),
-				    NEW_DASGN_CURR(id,
-						   NEW_CALL(NEW_DVAR(id), idAREF, zero)),
-				    0),
-				node_assign($2, NEW_DVAR(id)));
-
+			    m->nd_next = node_assign($2, NEW_FOR(NEW_DVAR(id), 0, 0));
 			    args = new_args(m, 0, id, 0, new_args_tail(0, 0, 0));
 			}
 			else {