parse.y: fix inconsistency with literals

* parse.y (rb_id_attrset): fix inconsistency with literals, allow
  ID_ATTRSET and return it itself, but ID_JUNK cannot make ID_ATTRSET.
  and raise a NameError instead of rb_bug() for invalid argument.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43083 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 1 deletions

diff --git a/ext/-test-/symbol/type.c b/ext/-test-/symbol/type.c
index 37406d3853..e0b2fff2f9 100644
--- a/ext/-test-/symbol/type.c
+++ b/ext/-test-/symbol/type.c
@@ -27,8 +27,17 @@ bug_sym_##type##_p(VALUE self, VALUE name) \
 
 FOREACH_ID_TYPES(define_symbol_type_p)
 
+static VALUE
+bug_sym_attrset(VALUE self, VALUE name)
+{
+    ID id = rb_to_id(name);
+    id = rb_id_attrset(id);
+    return ID2SYM(id);
+}
+
 void
 Init_type(VALUE klass)
 {
-    FOREACH_ID_TYPES(declare_symbol_type_p)
+    FOREACH_ID_TYPES(declare_symbol_type_p);
+    rb_define_singleton_method(klass, "attrset", bug_sym_attrset, 1);
 }