* hash.c (rb_any_hash): fixed performance issues with nil, true,

  false as hash keys.  a patch from Matthias Waechter.  
  [ruby-core:21568]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/hash.c b/hash.c
index 7203d8c4e9..bfd3fe7f61 100644
--- a/hash.c
+++ b/hash.c
@@ -69,6 +69,9 @@ rb_any_hash(VALUE a)
     switch (TYPE(a)) {
       case T_FIXNUM:
       case T_SYMBOL:
+      case T_NIL:
+      case T_FALSE:
+      case T_TRUE:
 	hnum = (int)a;
 	break;