string.c: ensure String#freeze resizes internal buffer

rb_str_freeze may resize oversized buffers to save memory, so favor
it over rb_obj_freeze.  This is useful because IO methods do not
prematurely shrink buffers, as they are likely to be overwritten
with full data.

* string.c (Init_String): use rb_str_freeze for String#freeze

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51170 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/string.c b/string.c
index 6ef92eb9fb..03922e56c1 100644
--- a/string.c
+++ b/string.c
@@ -9150,7 +9150,7 @@ Init_String(void)
     rb_define_method(rb_cString, "byteslice", rb_str_byteslice, -1);
     rb_define_method(rb_cString, "scrub", str_scrub, -1);
     rb_define_method(rb_cString, "scrub!", str_scrub_bang, -1);
-    rb_define_method(rb_cString, "freeze", rb_obj_freeze, 0);
+    rb_define_method(rb_cString, "freeze", rb_str_freeze, 0);
 
     rb_define_method(rb_cString, "to_i", rb_str_to_i, -1);
     rb_define_method(rb_cString, "to_f", rb_str_to_f, 0);