From 6e0fed271c1d2e6f2b13b99d89d43e7d00e81472 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 2 Feb 2007 13:19:44 +0000
Subject: * ruby.h (SYMBOL_P): make Symbol immediate again for performance.

* string.c: redesign symbol methods.

* parse.y (rb_id2str): store Strings for operator symbols.
  [ruby-dev:30235]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11615 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ruby.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'ruby.h')

diff --git a/ruby.h b/ruby.h
index cf303f8e3c..e5b4a69697 100644
--- a/ruby.h
+++ b/ruby.h
@@ -197,11 +197,10 @@ VALUE rb_ull2inum(unsigned LONG_LONG);
 #define IMMEDIATE_MASK 0x03
 #define IMMEDIATE_P(x) ((VALUE)(x) & IMMEDIATE_MASK)
 
-#define SYMBOL_P(x) (!SPECIAL_CONST_P(x) && RBASIC(x)->klass == rb_cSymbol)
-VALUE rb_id2sym(ID);
-ID rb_sym2id(VALUE);
-#define ID2SYM(x) rb_id2sym(x)
-#define SYM2ID(x) rb_sym2id(x)
+#define SYMBOL_FLAG 0x0e
+#define SYMBOL_P(x) (((VALUE)(x)&0xff)==SYMBOL_FLAG)
+#define ID2SYM(x) ((VALUE)(((long)(x))<<8|SYMBOL_FLAG))
+#define SYM2ID(x) RSHIFT((unsigned long)x,8)
 
 /* special contants - i.e. non-zero and non-fixnum constants */
 #define Qfalse ((VALUE)0)
-- 
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