dir.c: reduce string object

* dir.c (dir_each): get rid of allocate new string from UTF-8 string.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/string.c b/string.c
index 2d328e45d5..7f8707ae5c 100644
--- a/string.c
+++ b/string.c
@@ -576,6 +576,12 @@ rb_external_str_new_with_enc(const char *ptr, long len, rb_encoding *eenc)
     VALUE str;
 
     str = rb_tainted_str_new(ptr, len);
+    return rb_external_str_with_enc(str, eenc);
+}
+
+VALUE
+rb_external_str_with_enc(VALUE str, rb_encoding *eenc)
+{
     if (eenc == rb_usascii_encoding() &&
 	rb_enc_str_coderange(str) != ENC_CODERANGE_7BIT) {
 	rb_enc_associate(str, rb_ascii8bit_encoding());