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mruby-string-ext: implement String#clear in C

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Co-authored-by: Gemini <gemini@google.com>
This commit is contained in:
Yukihiro "Matz" Matsumoto
2025-06-27 16:26:25 +09:00
parent 4cace579ad
commit f463e9d3b7
2 changed files with 20 additions and 15 deletions
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mrbgems/mruby-string-ext/mrblib/string.rb
-14
View File
@@ -1,19 +1,5 @@
class String
##
# call-seq:
# string.clear -> string
#
# Makes string empty.
#
# a = "abcde"
# a.clear #=> ""
#
def clear
self.replace("")
end
def partition(sep)
raise TypeError, "type mismatch: #{sep.class} given" unless sep.is_a? String
n = index(sep)
mrbgems/mruby-string-ext/src/string.c
+20 -1
View File
@@ -1984,6 +1984,24 @@ mrb_str_slice_bang(mrb_state *mrb, mrb_value self)
return result;
}
/*
* call-seq:
* string.clear -> string
*
* Makes string empty.
*
* a = "abcde"
* a.clear #=> ""
*/
static mrb_value
str_clear(mrb_state *mrb, mrb_value self)
{
struct RString *s = mrb_str_ptr(self);
mrb_str_modify(mrb, s);
RSTR_SET_LEN(s, 0);
return self;
}
/*
* call-seq:
* str.partition(sep) -> [head, sep, tail]
@@ -2163,8 +2181,9 @@ mrb_mruby_string_ext_gem_init(mrb_state* mrb)
mrb_define_method_id(mrb, s, MRB_SYM_B(swapcase), str_swapcase_bang, MRB_ARGS_NONE());
mrb_define_method_id(mrb, s, MRB_SYM_B(slice), mrb_str_slice_bang, MRB_ARGS_ARG(1, 1));
mrb_define_method_id(mrb, s, MRB_SYM(swapcase), str_swapcase, MRB_ARGS_NONE());
mrb_define_method_id(mrb, s, MRB_SYM(concat), str_concat_m, MRB_ARGS_REQ(1));
mrb_define_method_id(mrb, s, MRB_SYM(clear), str_clear, MRB_ARGS_NONE());
mrb_define_method_id(mrb, s, MRB_OPSYM(lshift), str_concat_m, MRB_ARGS_REQ(1));
mrb_define_method_id(mrb, s, MRB_SYM(concat), str_concat_m, MRB_ARGS_REQ(1));
mrb_define_method_id(mrb, s, MRB_SYM(append_as_bytes), str_append_as_bytes, MRB_ARGS_REQ(1));
mrb_define_method_id(mrb, s, MRB_SYM(count), str_count, MRB_ARGS_REQ(1));
mrb_define_method_id(mrb, s, MRB_SYM(tr), str_tr_m, MRB_ARGS_REQ(2));