diff options
author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2006-09-21 22:50:32 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2006-09-21 22:50:32 +0000 |
commit | 5b950717b7bbcf8fa3b9362060c02badd87d2b5a (patch) | |
tree | ffddd2dbe36962b102e61c0cd23b5241a395db90 /string.c | |
parent | e4800cabfbc85b6f581de1e111bd61602ed9f406 (diff) |
* string.c (str_new3): embed shorter strings more eagerly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10991 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 17 |
1 files changed, 12 insertions, 5 deletions
@@ -191,11 +191,18 @@ str_new3(VALUE klass, VALUE str) { VALUE str2 = str_alloc(klass); - FL_SET(str2, STR_NOEMBED); - RSTRING(str2)->as.heap.len = RSTRING_LEN(str); - RSTRING(str2)->as.heap.ptr = RSTRING_PTR(str); - RSTRING(str2)->as.heap.aux.shared = str; - FL_SET(str2, ELTS_SHARED); + if (RSTRING_LEN(str) <= RSTRING_EMBED_LEN_MAX) { + STR_SET_EMBED(str); + memcpy(RSTRING_PTR(str2), RSTRING_PTR(str), RSTRING_LEN(str)+1); + STR_SET_EMBED_LEN(str2, RSTRING_LEN(str)); + } + else { + FL_SET(str2, STR_NOEMBED); + RSTRING(str2)->as.heap.len = RSTRING_LEN(str); + RSTRING(str2)->as.heap.ptr = RSTRING_PTR(str); + RSTRING(str2)->as.heap.aux.shared = str; + FL_SET(str2, ELTS_SHARED); + } OBJ_INFECT(str2, str); return str2; |