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extern crate heapsize;
use self::heapsize::{heap_size_of, HeapSizeOf};
use std::hash::{BuildHasher, Hash};
use {KeyRef, LinkedHashMap, Node};
impl<K> HeapSizeOf for KeyRef<K> {
fn heap_size_of_children(&self) -> usize {
0
}
}
impl<K, V> HeapSizeOf for Node<K, V>
where
K: HeapSizeOf,
V: HeapSizeOf,
{
fn heap_size_of_children(&self) -> usize {
self.key.heap_size_of_children() + self.value.heap_size_of_children()
}
}
impl<K, V, S> HeapSizeOf for LinkedHashMap<K, V, S>
where
K: HeapSizeOf + Hash + Eq,
V: HeapSizeOf,
S: BuildHasher,
{
fn heap_size_of_children(&self) -> usize {
unsafe {
let mut size = self.map.heap_size_of_children();
for &value in self.map.values() {
size += (*value).heap_size_of_children();
size += heap_size_of(value as *const _ as *const _);
}
if !self.head.is_null() {
size += heap_size_of(self.head as *const _ as *const _);
}
let mut free = self.free;
while !free.is_null() {
size += heap_size_of(free as *const _ as *const _);
free = (*free).next
}
size
}
}
}