parse.y: warn iside a block

* parse.y (gettable_gen): also warn circular argument reference even
  inside a block.  [ruby-core:65990] [Bug #10314]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 1 deletions

diff --git a/parse.y b/parse.y
index b256633189..da91b53a02 100644
--- a/parse.y
+++ b/parse.y
@@ -8733,7 +8733,12 @@ gettable_gen(struct parser_params *parser, ID id)
     }
     switch (id_type(id)) {
       case ID_LOCAL:
-	if (dyna_in_block() && dvar_defined(id)) return NEW_DVAR(id);
+	if (dyna_in_block() && dvar_defined(id)) {
+	    if (id == current_arg) {
+		rb_warnV("circular argument reference - %"PRIsVALUE, rb_id2str(id));
+	    }
+	    return NEW_DVAR(id);
+	}
 	if (local_id(id)) {
 	    if (id == current_arg) {
 		rb_warnV("circular argument reference - %"PRIsVALUE, rb_id2str(id));