diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-04-17 13:38:34 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-04-17 13:38:34 +0000 |
commit | cc68af3d026a3ece1dd890fd3510ed9c26660bc6 (patch) | |
tree | c4fd5b39852cef2c4e4b6e1d2d24d406a0e3f461 /string.c | |
parent | 97819765a6530004d2dc42bc175dc497cb22a34b (diff) |
string.c: improve insertion performace
* string.c (rb_str_splice_0): improve performace of single byte
optimizable cases, insertion 7bit string to 7bit string.
[ruby-dev:49984] [Bug #13228]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -4397,6 +4397,7 @@ rb_str_splice_0(VALUE str, long beg, long len, VALUE val) { char *sptr; long slen, vlen = RSTRING_LEN(val); + int cr; if (beg == 0 && vlen == 0) { rb_str_drop_bytes(str, len); @@ -4404,7 +4405,7 @@ rb_str_splice_0(VALUE str, long beg, long len, VALUE val) return; } - rb_str_modify(str); + str_modify_keep_cr(str); RSTRING_GETMEM(str, sptr, slen); if (len < vlen) { /* expand string */ @@ -4412,6 +4413,11 @@ rb_str_splice_0(VALUE str, long beg, long len, VALUE val) sptr = RSTRING_PTR(str); } + if (ENC_CODERANGE(str) == ENC_CODERANGE_7BIT) + cr = rb_enc_str_coderange(val); + else + cr = ENC_CODERANGE_UNKNOWN; + if (vlen != len) { memmove(sptr + beg + vlen, sptr + beg + len, @@ -4427,6 +4433,7 @@ rb_str_splice_0(VALUE str, long beg, long len, VALUE val) STR_SET_LEN(str, slen); TERM_FILL(&sptr[slen], TERM_LEN(str)); OBJ_INFECT(str, val); + ENC_CODERANGE_SET(str, cr); } void |