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* include/ruby/ruby.h (CONST_ID): constant ID cache for non-gcc.

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* *.c: no cache in init functions.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17053 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2008-06-09 09:25:32 +00:00
parent 250dd07021
commit 5a647a3f5f
32 changed files with 141 additions and 85 deletions
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16
include/ruby/ruby.h
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@ -764,17 +764,21 @@ const char *rb_id2name(ID);
ID rb_to_id(VALUE);
VALUE rb_id2str(ID);
#define CONST_ID_CACHE(result, str) \
({ \
static ID rb_intern_id_cache; \
if (!rb_intern_id_cache) \
rb_intern_id_cache = (rb_intern)(str); \
result rb_intern_id_cache; \
})
#define CONST_ID(var, str) \
do {CONST_ID_CACHE(var =, str);} while (0)
#ifdef __GNUC__
/* __builtin_constant_p and statement expression is available
* since gcc-2.7.2.3 at least. */
#define rb_intern(str) \
(__builtin_constant_p(str) ? \
({ \
static ID rb_intern_id_cache; \
if (!rb_intern_id_cache) \
rb_intern_id_cache = rb_intern(str); \
rb_intern_id_cache; \
}) : \
CONST_ID_CACHE(/**/, str) : \
rb_intern(str))
#endif