mirror of https://github.com/astral-sh/ruff
29 lines
1.0 KiB
Rust
29 lines
1.0 KiB
Rust
use std::sync::{LazyLock, Mutex};
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use get_size2::{GetSize, StandardTracker};
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use ordermap::{OrderMap, OrderSet};
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/// Returns the memory usage of the provided object, using a global tracker to avoid
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/// double-counting shared objects.
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pub fn heap_size<T: GetSize>(value: &T) -> usize {
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static TRACKER: LazyLock<Mutex<StandardTracker>> =
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LazyLock::new(|| Mutex::new(StandardTracker::new()));
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value
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.get_heap_size_with_tracker(&mut *TRACKER.lock().unwrap())
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.0
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}
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/// An implementation of [`GetSize::get_heap_size`] for [`OrderSet`].
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pub fn order_set_heap_size<T: GetSize, S>(set: &OrderSet<T, S>) -> usize {
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(set.capacity() * T::get_stack_size()) + set.iter().map(heap_size).sum::<usize>()
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}
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/// An implementation of [`GetSize::get_heap_size`] for [`OrderMap`].
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pub fn order_map_heap_size<K: GetSize, V: GetSize, S>(map: &OrderMap<K, V, S>) -> usize {
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(map.capacity() * (K::get_stack_size() + V::get_stack_size()))
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+ (map.iter())
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.map(|(k, v)| heap_size(k) + heap_size(v))
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.sum::<usize>()
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}
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