diff options
author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2020-01-31 14:24:07 +0900 |
---|---|---|
committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2020-01-31 14:24:07 +0900 |
commit | 0dd6f020fcffd26cb89ee9eda59b15483e160f45 (patch) | |
tree | 80ffa14550150749ecd8109affb6c2f424ba7657 /string.c | |
parent | f31dc8a45877f6db810fa5177270789baefeee0e (diff) |
Make `empty_string` a fake string
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 18 |
1 files changed, 9 insertions, 9 deletions
@@ -215,7 +215,13 @@ str_make_independent(VALUE str) /* symbols for [up|down|swap]case/capitalize options */ static VALUE sym_ascii, sym_turkic, sym_lithuanian, sym_fold; -static VALUE empty_string; +static const struct RString empty_fake_string = { + { + T_STRING | STR_FAKESTR | + ENC_CODERANGE_7BIT | (ENCINDEX_US_ASCII << ENCODING_SHIFT) + } +}; +#define empty_string ((VALUE)&empty_fake_string) static rb_encoding * get_actual_encoding(const int encidx, VALUE str) @@ -4885,16 +4891,13 @@ rb_str_slice_bang(int argc, VALUE *argv, VALUE str) { VALUE result; VALUE buf[3]; - int i; rb_check_arity(argc, 1, 2); - for (i=0; i<argc; i++) { - buf[i] = argv[i]; - } + MEMCPY(buf, argv, VALUE, argc); str_modify_keep_cr(str); result = rb_str_aref_m(argc, buf, str); if (!NIL_P(result)) { - buf[i] = empty_string; + buf[argc] = empty_string; rb_str_aset_m(argc+1, buf, str); } return result; @@ -11382,9 +11385,6 @@ Init_String(void) rb_define_method(rb_cString, "unicode_normalize!", rb_str_unicode_normalize_bang, -1); rb_define_method(rb_cString, "unicode_normalized?", rb_str_unicode_normalized_p, -1); - empty_string = rb_fstring_enc_lit("", rb_usascii_encoding()); - rb_gc_register_mark_object(empty_string); - rb_fs = Qnil; rb_define_hooked_variable("$;", &rb_fs, 0, rb_fs_setter); rb_define_hooked_variable("$-F", &rb_fs, 0, rb_fs_setter); |