archive/ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2025-08-23 13:04:13 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

[ruby/json] Use RB_ENCODING_GET instead of rb_enc_get to improve performance

Browse source 
This speeds up `JSON.generate` by about 12% in a benchmark.

4329e30826
This commit is contained in:
Yusuke Endoh 2023-12-27 16:32:47 +09:00 • committed by git
parent 0b4257efa3
commit 233f63c7fb
1 changed files with 9 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

13
ext/json/generator/generator.c
View file

@ -742,17 +742,19 @@ static void generate_json_array(FBuffer *buffer, VALUE Vstate, JSON_Generator_St
fbuffer_append_char(buffer, ']');
}
static int enc_utf8_compatible_p(rb_encoding *enc)
static int usascii_encindex, utf8_encindex;
static int enc_utf8_compatible_p(int enc_idx)
{
if (enc == rb_usascii_encoding()) return 1;
if (enc == rb_utf8_encoding()) return 1;
if (enc_idx == usascii_encindex) return 1;
if (enc_idx == utf8_encindex) return 1;
return 0;
}
static void generate_json_string(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj)
{
fbuffer_append_char(buffer, '"');
if (!enc_utf8_compatible_p(rb_enc_get(obj))) {
if (!enc_utf8_compatible_p(RB_ENCODING_GET(obj))) {
obj = rb_str_export_to_enc(obj, rb_utf8_encoding());
}
convert_UTF8_to_JSON(buffer, obj, state->ascii_only, state->script_safe);
@ -1479,4 +1481,7 @@ void Init_generator(void)
i_match = rb_intern("match");
i_keys = rb_intern("keys");
i_dup = rb_intern("dup");
usascii_encindex = rb_usascii_encindex();
utf8_encindex = rb_utf8_encindex();
}