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* string.c (rb_str_dup_frozen): handle tail shared string.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3165 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2002-12-18 11:50:49 +00:00
parent f4b8bbb143
commit f8c8a38d30
2 changed files with 8 additions and 3 deletions
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4
ChangeLog
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@ -1,8 +1,10 @@
Wed Dec 18 02:27:34 2002 Nobuyoshi Nakada <nobu.nokada@softhome.net> Wed Dec 18 03:52:55 2002 Nobuyoshi Nakada <nobu.nokada@softhome.net>
* string.c (rb_str_new4): handle tail shared string. * string.c (rb_str_new4): handle tail shared string.
(ruby-bugs-ja:PR#370) (ruby-bugs-ja:PR#370)
* string.c (rb_str_dup_frozen): ditto.
Tue Dec 17 21:08:29 2002 Nobuyoshi Nakada <nobu.nokada@softhome.net> Tue Dec 17 21:08:29 2002 Nobuyoshi Nakada <nobu.nokada@softhome.net>
* node.h (NODE_ATTRASGN): new node, assignment to attribute. * node.h (NODE_ATTRASGN): new node, assignment to attribute.

7
string.c
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@ -517,8 +517,11 @@ rb_str_dup_frozen(str)
VALUE str; VALUE str;
{ {
if (FL_TEST(str, ELTS_SHARED)) { if (FL_TEST(str, ELTS_SHARED)) {
OBJ_FREEZE(RSTRING(str)->aux.shared); VALUE shared = RSTRING(str)->aux.shared;
return RSTRING(str)->aux.shared; if (RSTRING(shared)->len == RSTRING(str)->len) {
OBJ_FREEZE(shared);
return shared;
}
} }
if (OBJ_FROZEN(str)) return str; if (OBJ_FROZEN(str)) return str;
str = rb_str_dup(str); str = rb_str_dup(str);