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call rb_str_modify to make a copy unshared

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66840 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2019-01-17 00:36:08 +00:00
parent d1417ff8fa
commit d25a27abba
3 changed files with 14 additions and 1 deletions
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1
spec/ruby/optional/capi/ext/rubyspec.h
View file

@ -572,6 +572,7 @@
#define HAVE_RB_STRING 1
#define HAVE_SAFE_STRING_VALUE 1
#define HAVE_RB_STRING_VALUE_CSTR 1
#define HAVE_RB_STR_MODIFY 1
/* Struct */
#define HAVE_RB_STRUCT_AREF 1

11
spec/ruby/optional/capi/ext/string_spec.c
View file

@ -504,6 +504,13 @@ static VALUE string_spec_rb_string_value_cstr(VALUE self, VALUE str) {
}
#endif
#ifdef HAVE_RB_STR_MODIFY
static VALUE string_spec_rb_str_modify(VALUE self, VALUE str) {
rb_str_modify(str);
return str;
}
#endif
void Init_string_spec(void) {
VALUE cls;
cls = rb_define_class("CApiStringSpecs", rb_cObject);
@ -744,6 +751,10 @@ void Init_string_spec(void) {
#ifdef HAVE_RB_STRING_VALUE_CSTR
rb_define_method(cls, "rb_string_value_cstr", string_spec_rb_string_value_cstr, 1);
#endif
#ifdef HAVE_RB_STR_MODIFY
rb_define_method(cls, "rb_str_modify", string_spec_rb_str_modify, 1);
#endif
}
#ifdef __cplusplus
}

3
spec/ruby/optional/capi/string_spec.rb
View file

@ -36,7 +36,8 @@ describe "C-API String function" do
before :each do
# Make a completely new copy of the string
# for every example (#dup doesn't cut it).
@str = "abcdefghij"[0..-1]
@str = "abcdefghij"
@s.rb_str_modify(@str)
end
it "reduces the size of the string" do