Make string embad from shared

This commit is contained in:
ksss
2017-05-13 22:44:52 +09:00
parent 171e732dc7
commit bdb36b3404
+10 -3
View File
@@ -685,13 +685,20 @@ mrb_str_modify(mrb_state *mrb, struct RString *s)
p = RSTR_PTR(s);
len = s->as.heap.len;
ptr = (char *)mrb_malloc(mrb, (size_t)len + 1);
if (len < RSTRING_EMBED_LEN_MAX) {
RSTR_SET_EMBED_FLAG(s);
RSTR_SET_EMBED_LEN(s, len);
ptr = RSTR_PTR(s);
}
else {
ptr = (char *)mrb_malloc(mrb, (size_t)len + 1);
s->as.heap.ptr = ptr;
s->as.heap.aux.capa = len;
}
if (p) {
memcpy(ptr, p, len);
}
ptr[len] = '\0';
s->as.heap.ptr = ptr;
s->as.heap.aux.capa = len;
str_decref(mrb, shared);
}
RSTR_UNSET_SHARED_FLAG(s);