Rename `mrb_shared_string::len` to `mrb_shared_string::capa`
Because this field is used as capacity of string buffer.
typedef struct mrb_shared_string {
int refcnt;
- mrb_int len;
+ mrb_int capa;
char *ptr;
} mrb_shared_string;
@@ -79,7 +79,7 @@ str_init_shared(mrb_state *mrb, const struct RString *orig, struct RString *s, m
shared = (mrb_shared_string *)mrb_malloc(mrb, sizeof(mrb_shared_string));
shared->refcnt = 2;
shared->ptr = orig->as.heap.ptr;
- shared->len = orig->as.heap.len;
+ shared->capa = orig->as.heap.aux.capa;
}
s->as.heap.ptr = orig->as.heap.ptr;
s->as.heap.len = orig->as.heap.len;
@@ -534,6 +534,7 @@ str_make_shared(mrb_state *mrb, struct RString *orig, struct RString *s)
else {
if (orig->as.heap.aux.capa > orig->as.heap.len) {
orig->as.heap.ptr = (char *)mrb_realloc(mrb, orig->as.heap.ptr, len+1);
+ orig->as.heap.aux.capa = len;
}
str_init_shared(mrb, orig, s, NULL);
orig->as.heap.aux.shared = s->as.heap.aux.shared;
@@ -780,7 +781,7 @@ mrb_str_modify_keep_ascii(mrb_state *mrb, struct RString *s)
mrb_shared_string *shared = s->as.heap.aux.shared;
if (shared->refcnt == 1 && s->as.heap.ptr == shared->ptr) {
- s->as.heap.aux.capa = shared->len;
+ s->as.heap.aux.capa = shared->capa;
s->as.heap.ptr[s->as.heap.len] = '\0';
mrb_free(mrb, shared);
}
