From 5cd98697f846899a529ad57c165ed5b7e265365c Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 4 Mar 2015 02:52:32 +0000
Subject: symbol.c: make dsym_fstrs an identity hash

* symbol.c (Init_sym): make dsym_fstrs a hash compared by identity
  as the keys are unique fstrings, to get rid of running hash and
  compare methods and causing new object allocation during garbage
  collection phase.  [ruby-dev:48891] [Bug #10933]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 symbol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'symbol.c')

diff --git a/symbol.c b/symbol.c
index 1127020d17..696f0177b9 100644
--- a/symbol.c
+++ b/symbol.c
@@ -122,7 +122,7 @@ static const struct st_hash_type symhash = {
 void
 Init_sym(void)
 {
-    VALUE dsym_fstrs = rb_hash_new();
+    VALUE dsym_fstrs = rb_ident_hash_new();
     global_symbols.dsymbol_fstr_hash = dsym_fstrs;
     rb_gc_register_mark_object(dsym_fstrs);
     rb_obj_hide(dsym_fstrs);
-- 
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