Benchmark:
```
puts(Benchmark.measure do
10_000_000.times do
ObjectSpace::WeakKeyMap.new
end
end)
```
Before:
```
2.554772 0.014167 2.568939 ( 2.575763)
```
After:
```
1.994920 0.013583 2.008503 ( 2.012139)
```
@@ -557,7 +557,6 @@ wkmap_free(void *ptr)
st_foreach(w->table, wkmap_free_table_i, 0);
st_free_table(w->table);
- xfree(w);
}
static size_t
@@ -565,7 +564,7 @@ wkmap_memsize(const void *ptr)
{
const struct weakkeymap *w = ptr;
- size_t size = sizeof(*w);
+ size_t size = 0;
size += st_memsize(w->table);
/* Each key of the table takes sizeof(VALUE) in size. */
size += st_table_size(w->table) * sizeof(VALUE);
@@ -619,7 +618,7 @@ static const rb_data_type_t weakkeymap_type = {
wkmap_memsize,
wkmap_compact,
},
- 0, 0, RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED
+ 0, 0, RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_EMBEDDABLE
};
static int