From 261661517af17df2cb8602594ab263b25c39132c Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 15 Oct 2010 15:10:17 +0000
Subject: * hash.c (rb_hash_aref): skip calling "default" method   if it is not
 neede for speed-up.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 hash.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'hash.c')

diff --git a/hash.c b/hash.c
index 8b165735d9..0d1898313b 100644
--- a/hash.c
+++ b/hash.c
@@ -509,7 +509,14 @@ rb_hash_aref(VALUE hash, VALUE key)
     st_data_t val;
 
     if (!RHASH(hash)->ntbl || !st_lookup(RHASH(hash)->ntbl, key, &val)) {
-	return rb_funcall(hash, id_default, 1, key);
+	int rb_method_basic_definition_p(VALUE klass, ID id);
+	if (!FL_TEST(hash, HASH_PROC_DEFAULT) &&
+	    rb_method_basic_definition_p(CLASS_OF(hash), id_default)) {
+	    return RHASH_IFNONE(hash);
+	}
+	else {
+	    return rb_funcall(hash, id_default, 1, key);
+	}
     }
     return (VALUE)val;
 }
-- 
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