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-rw-r--r--ext/stringio/stringio.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index 46f334e945..5edd970e1c 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -171,7 +171,7 @@ static const rb_data_type_t strio_data_type = {
strio_free,
strio_memsize,
},
- 0, 0, RUBY_TYPED_FREE_IMMEDIATELY
+ 0, 0, RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED
};
#define check_strio(self) ((struct StringIO*)rb_check_typeddata((self), &strio_data_type))
@@ -379,7 +379,7 @@ strio_init(int argc, VALUE *argv, struct StringIO *ptr, VALUE self)
if (ptr->flags & FMODE_TRUNC) {
rb_str_resize(string, 0);
}
- ptr->string = string;
+ RB_OBJ_WRITE(self, &ptr->string, string);
if (argc == 1) {
ptr->enc = rb_enc_get(string);
}
@@ -397,7 +397,7 @@ static VALUE
strio_finalize(VALUE self)
{
struct StringIO *ptr = StringIO(self);
- ptr->string = Qnil;
+ RB_OBJ_WRITE(self, &ptr->string, Qnil);
ptr->flags &= ~FMODE_READWRITE;
return self;
}
@@ -563,7 +563,8 @@ strio_set_string(VALUE self, VALUE string)
ptr->flags = OBJ_FROZEN(string) ? FMODE_READABLE : FMODE_READWRITE;
ptr->pos = 0;
ptr->lineno = 0;
- return ptr->string = string;
+ RB_OBJ_WRITE(self, &ptr->string, string);
+ return string;
}
/*