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storage: avoid invoking ::page more than once in a row

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This commit is contained in:
Michele Caini
2021-08-26 12:11:54 +02:00
parent 9551b7a597
commit 04da85c88a
1 changed files with 7 additions and 5 deletions
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12
src/entt/entity/storage.hpp
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@@ -197,8 +197,10 @@ class basic_storage: public basic_sparse_set<Entity, typename std::allocator_tra
}
}
void assure_at_least(const std::size_t pos) {
if(const auto idx = page(pos); !(idx < bucket.second())) {
auto assure_at_least(const std::size_t pos) {
const auto idx = page(pos);
if(!(idx < bucket.second())) {
auto &allocator = bucket.first();
auto &len = bucket.second();
alloc_ptr allocator_ptr{allocator};
@@ -230,6 +232,8 @@ class basic_storage: public basic_sparse_set<Entity, typename std::allocator_tra
packed = mem;
len = sz;
}
return packed[idx];
}
void release_unused_pages() {
@@ -617,9 +621,7 @@ public:
template<typename... Args>
value_type & emplace(const entity_type entt, Args &&... args) {
const auto pos = base_type::slot();
assure_at_least(pos);
alloc_pointer elem = packed[page(pos)] + offset(pos);
alloc_pointer elem = assure_at_least(pos) + offset(pos);
construct(elem, std::forward<Args>(args)...);
ENTT_TRY {