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String#clear: use String#replace to simple

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This commit is contained in:
ksss
2014-06-11 14:46:52 +00:00
parent bd53818999
commit f1e15b0236
2 changed files with 14 additions and 32 deletions
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mrbgems/mruby-string-ext/mrblib/string.rb
+14
View File
@@ -1,4 +1,18 @@
class String
##
# call-seq:
# string.clear -> string
#
# Makes string empty.
#
# a = "abcde"
# a.clear #=> ""
#
def clear
self.replace("")
end
##
# call-seq:
# str.lstrip -> new_str
mrbgems/mruby-string-ext/src/string.c
-32
View File
@@ -239,37 +239,6 @@ mrb_str_lines(mrb_state *mrb, mrb_value self)
return result;
}
/*
* call-seq:
* string.clear -> string
*
* Makes string empty.
*
* a = "abcde"
* a.clear #=> ""
*/
static mrb_value
mrb_str_clear(mrb_state *mrb, mrb_value str)
{
struct RString *s = mrb_str_ptr(str);
if (!RSTR_SHARED_P(s) && !RSTR_EMBED_P(s)) {
if (RSTR_NOFREE_P(s)) {
RSTR_UNSET_NOFREE_FLAG(s);
}
else {
mrb_free(mrb, s->as.heap.ptr);
}
s->as.heap.ptr = 0;
s->as.heap.len = 0;
}
RSTR_UNSET_SHARED_FLAG(s);
RSTR_SET_EMBED_FLAG(s);
RSTR_SET_EMBED_LEN(s, 0);
RSTRING_PTR(str)[0] = '\0';
return str;
}
void
mrb_mruby_string_ext_gem_init(mrb_state* mrb)
{
@@ -287,7 +256,6 @@ mrb_mruby_string_ext_gem_init(mrb_state* mrb)
mrb_define_method(mrb, s, "oct", mrb_str_oct, MRB_ARGS_NONE());
mrb_define_method(mrb, s, "chr", mrb_str_chr, MRB_ARGS_NONE());
mrb_define_method(mrb, s, "lines", mrb_str_lines, MRB_ARGS_NONE());
mrb_define_method(mrb, s, "clear", mrb_str_clear, MRB_ARGS_NONE());
}
void