mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-11-25 04:46:27 -05:00
627 lines
19 KiB
C++
627 lines
19 KiB
C++
// Copyright 2021 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include "common/parent_of_member.h"
|
|
#include "common/tree.h"
|
|
|
|
namespace Common {
|
|
|
|
namespace impl {
|
|
|
|
class IntrusiveRedBlackTreeImpl;
|
|
|
|
}
|
|
|
|
struct IntrusiveRedBlackTreeNode {
|
|
|
|
private:
|
|
RB_ENTRY(IntrusiveRedBlackTreeNode) entry{};
|
|
|
|
friend class impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
template <class, class, class>
|
|
friend class IntrusiveRedBlackTree;
|
|
|
|
public:
|
|
constexpr IntrusiveRedBlackTreeNode() = default;
|
|
};
|
|
|
|
template <class T, class Traits, class Comparator>
|
|
class IntrusiveRedBlackTree;
|
|
|
|
namespace impl {
|
|
|
|
class IntrusiveRedBlackTreeImpl {
|
|
|
|
private:
|
|
template <class, class, class>
|
|
friend class ::Common::IntrusiveRedBlackTree;
|
|
|
|
private:
|
|
RB_HEAD(IntrusiveRedBlackTreeRoot, IntrusiveRedBlackTreeNode);
|
|
using RootType = IntrusiveRedBlackTreeRoot;
|
|
|
|
private:
|
|
IntrusiveRedBlackTreeRoot root;
|
|
|
|
public:
|
|
template <bool Const>
|
|
class Iterator;
|
|
|
|
using value_type = IntrusiveRedBlackTreeNode;
|
|
using size_type = size_t;
|
|
using difference_type = ptrdiff_t;
|
|
using pointer = value_type*;
|
|
using const_pointer = const value_type*;
|
|
using reference = value_type&;
|
|
using const_reference = const value_type&;
|
|
using iterator = Iterator<false>;
|
|
using const_iterator = Iterator<true>;
|
|
|
|
template <bool Const>
|
|
class Iterator {
|
|
public:
|
|
using iterator_category = std::bidirectional_iterator_tag;
|
|
using value_type = typename IntrusiveRedBlackTreeImpl::value_type;
|
|
using difference_type = typename IntrusiveRedBlackTreeImpl::difference_type;
|
|
using pointer = std::conditional_t<Const, IntrusiveRedBlackTreeImpl::const_pointer,
|
|
IntrusiveRedBlackTreeImpl::pointer>;
|
|
using reference = std::conditional_t<Const, IntrusiveRedBlackTreeImpl::const_reference,
|
|
IntrusiveRedBlackTreeImpl::reference>;
|
|
|
|
private:
|
|
pointer node;
|
|
|
|
public:
|
|
explicit Iterator(pointer n) : node(n) {}
|
|
|
|
bool operator==(const Iterator& rhs) const {
|
|
return this->node == rhs.node;
|
|
}
|
|
|
|
bool operator!=(const Iterator& rhs) const {
|
|
return !(*this == rhs);
|
|
}
|
|
|
|
pointer operator->() const {
|
|
return this->node;
|
|
}
|
|
|
|
reference operator*() const {
|
|
return *this->node;
|
|
}
|
|
|
|
Iterator& operator++() {
|
|
this->node = GetNext(this->node);
|
|
return *this;
|
|
}
|
|
|
|
Iterator& operator--() {
|
|
this->node = GetPrev(this->node);
|
|
return *this;
|
|
}
|
|
|
|
Iterator operator++(int) {
|
|
const Iterator it{*this};
|
|
++(*this);
|
|
return it;
|
|
}
|
|
|
|
Iterator operator--(int) {
|
|
const Iterator it{*this};
|
|
--(*this);
|
|
return it;
|
|
}
|
|
|
|
operator Iterator<true>() const {
|
|
return Iterator<true>(this->node);
|
|
}
|
|
};
|
|
|
|
protected:
|
|
// Generate static implementations for non-comparison operations for IntrusiveRedBlackTreeRoot.
|
|
RB_GENERATE_WITHOUT_COMPARE_STATIC(IntrusiveRedBlackTreeRoot, IntrusiveRedBlackTreeNode, entry);
|
|
|
|
private:
|
|
// Define accessors using RB_* functions.
|
|
constexpr void InitializeImpl() {
|
|
RB_INIT(&this->root);
|
|
}
|
|
|
|
bool EmptyImpl() const {
|
|
return RB_EMPTY(&this->root);
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* GetMinImpl() const {
|
|
return RB_MIN(IntrusiveRedBlackTreeRoot,
|
|
const_cast<IntrusiveRedBlackTreeRoot*>(&this->root));
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* GetMaxImpl() const {
|
|
return RB_MAX(IntrusiveRedBlackTreeRoot,
|
|
const_cast<IntrusiveRedBlackTreeRoot*>(&this->root));
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* RemoveImpl(IntrusiveRedBlackTreeNode* node) {
|
|
return RB_REMOVE(IntrusiveRedBlackTreeRoot, &this->root, node);
|
|
}
|
|
|
|
public:
|
|
static IntrusiveRedBlackTreeNode* GetNext(IntrusiveRedBlackTreeNode* node) {
|
|
return RB_NEXT(IntrusiveRedBlackTreeRoot, nullptr, node);
|
|
}
|
|
|
|
static IntrusiveRedBlackTreeNode* GetPrev(IntrusiveRedBlackTreeNode* node) {
|
|
return RB_PREV(IntrusiveRedBlackTreeRoot, nullptr, node);
|
|
}
|
|
|
|
static IntrusiveRedBlackTreeNode const* GetNext(const IntrusiveRedBlackTreeNode* node) {
|
|
return static_cast<const IntrusiveRedBlackTreeNode*>(
|
|
GetNext(const_cast<IntrusiveRedBlackTreeNode*>(node)));
|
|
}
|
|
|
|
static IntrusiveRedBlackTreeNode const* GetPrev(const IntrusiveRedBlackTreeNode* node) {
|
|
return static_cast<const IntrusiveRedBlackTreeNode*>(
|
|
GetPrev(const_cast<IntrusiveRedBlackTreeNode*>(node)));
|
|
}
|
|
|
|
public:
|
|
constexpr IntrusiveRedBlackTreeImpl() : root() {
|
|
this->InitializeImpl();
|
|
}
|
|
|
|
// Iterator accessors.
|
|
iterator begin() {
|
|
return iterator(this->GetMinImpl());
|
|
}
|
|
|
|
const_iterator begin() const {
|
|
return const_iterator(this->GetMinImpl());
|
|
}
|
|
|
|
iterator end() {
|
|
return iterator(static_cast<IntrusiveRedBlackTreeNode*>(nullptr));
|
|
}
|
|
|
|
const_iterator end() const {
|
|
return const_iterator(static_cast<const IntrusiveRedBlackTreeNode*>(nullptr));
|
|
}
|
|
|
|
const_iterator cbegin() const {
|
|
return this->begin();
|
|
}
|
|
|
|
const_iterator cend() const {
|
|
return this->end();
|
|
}
|
|
|
|
iterator iterator_to(reference ref) {
|
|
return iterator(&ref);
|
|
}
|
|
|
|
const_iterator iterator_to(const_reference ref) const {
|
|
return const_iterator(&ref);
|
|
}
|
|
|
|
// Content management.
|
|
bool empty() const {
|
|
return this->EmptyImpl();
|
|
}
|
|
|
|
reference back() {
|
|
return *this->GetMaxImpl();
|
|
}
|
|
|
|
const_reference back() const {
|
|
return *this->GetMaxImpl();
|
|
}
|
|
|
|
reference front() {
|
|
return *this->GetMinImpl();
|
|
}
|
|
|
|
const_reference front() const {
|
|
return *this->GetMinImpl();
|
|
}
|
|
|
|
iterator erase(iterator it) {
|
|
auto cur = std::addressof(*it);
|
|
auto next = GetNext(cur);
|
|
this->RemoveImpl(cur);
|
|
return iterator(next);
|
|
}
|
|
};
|
|
|
|
} // namespace impl
|
|
|
|
template <typename T>
|
|
concept HasLightCompareType = requires {
|
|
{ std::is_same<typename T::LightCompareType, void>::value }
|
|
->std::convertible_to<bool>;
|
|
};
|
|
|
|
namespace impl {
|
|
|
|
template <typename T, typename Default>
|
|
consteval auto* GetLightCompareType() {
|
|
if constexpr (HasLightCompareType<T>) {
|
|
return static_cast<typename T::LightCompareType*>(nullptr);
|
|
} else {
|
|
return static_cast<Default*>(nullptr);
|
|
}
|
|
}
|
|
|
|
} // namespace impl
|
|
|
|
template <typename T, typename Default>
|
|
using LightCompareType = std::remove_pointer_t<decltype(impl::GetLightCompareType<T, Default>())>;
|
|
|
|
template <class T, class Traits, class Comparator>
|
|
class IntrusiveRedBlackTree {
|
|
|
|
public:
|
|
using ImplType = impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
private:
|
|
ImplType impl{};
|
|
|
|
public:
|
|
struct IntrusiveRedBlackTreeRootWithCompare : ImplType::IntrusiveRedBlackTreeRoot {};
|
|
|
|
template <bool Const>
|
|
class Iterator;
|
|
|
|
using value_type = T;
|
|
using size_type = size_t;
|
|
using difference_type = ptrdiff_t;
|
|
using pointer = T*;
|
|
using const_pointer = const T*;
|
|
using reference = T&;
|
|
using const_reference = const T&;
|
|
using iterator = Iterator<false>;
|
|
using const_iterator = Iterator<true>;
|
|
|
|
using light_value_type = LightCompareType<Comparator, value_type>;
|
|
using const_light_pointer = const light_value_type*;
|
|
using const_light_reference = const light_value_type&;
|
|
|
|
template <bool Const>
|
|
class Iterator {
|
|
public:
|
|
friend class IntrusiveRedBlackTree<T, Traits, Comparator>;
|
|
|
|
using ImplIterator =
|
|
std::conditional_t<Const, ImplType::const_iterator, ImplType::iterator>;
|
|
|
|
using iterator_category = std::bidirectional_iterator_tag;
|
|
using value_type = typename IntrusiveRedBlackTree::value_type;
|
|
using difference_type = typename IntrusiveRedBlackTree::difference_type;
|
|
using pointer = std::conditional_t<Const, IntrusiveRedBlackTree::const_pointer,
|
|
IntrusiveRedBlackTree::pointer>;
|
|
using reference = std::conditional_t<Const, IntrusiveRedBlackTree::const_reference,
|
|
IntrusiveRedBlackTree::reference>;
|
|
|
|
private:
|
|
ImplIterator iterator;
|
|
|
|
private:
|
|
explicit Iterator(ImplIterator it) : iterator(it) {}
|
|
|
|
explicit Iterator(typename std::conditional<Const, ImplType::const_iterator,
|
|
ImplType::iterator>::type::pointer ptr)
|
|
: iterator(ptr) {}
|
|
|
|
ImplIterator GetImplIterator() const {
|
|
return this->iterator;
|
|
}
|
|
|
|
public:
|
|
bool operator==(const Iterator& rhs) const {
|
|
return this->iterator == rhs.iterator;
|
|
}
|
|
|
|
bool operator!=(const Iterator& rhs) const {
|
|
return !(*this == rhs);
|
|
}
|
|
|
|
pointer operator->() const {
|
|
return Traits::GetParent(std::addressof(*this->iterator));
|
|
}
|
|
|
|
reference operator*() const {
|
|
return *Traits::GetParent(std::addressof(*this->iterator));
|
|
}
|
|
|
|
Iterator& operator++() {
|
|
++this->iterator;
|
|
return *this;
|
|
}
|
|
|
|
Iterator& operator--() {
|
|
--this->iterator;
|
|
return *this;
|
|
}
|
|
|
|
Iterator operator++(int) {
|
|
const Iterator it{*this};
|
|
++this->iterator;
|
|
return it;
|
|
}
|
|
|
|
Iterator operator--(int) {
|
|
const Iterator it{*this};
|
|
--this->iterator;
|
|
return it;
|
|
}
|
|
|
|
operator Iterator<true>() const {
|
|
return Iterator<true>(this->iterator);
|
|
}
|
|
};
|
|
|
|
private:
|
|
// Generate static implementations for comparison operations for IntrusiveRedBlackTreeRoot.
|
|
RB_GENERATE_WITH_COMPARE_STATIC(IntrusiveRedBlackTreeRootWithCompare, IntrusiveRedBlackTreeNode,
|
|
entry, CompareImpl, LightCompareImpl);
|
|
|
|
private:
|
|
static int CompareImpl(const IntrusiveRedBlackTreeNode* lhs,
|
|
const IntrusiveRedBlackTreeNode* rhs) {
|
|
return Comparator::Compare(*Traits::GetParent(lhs), *Traits::GetParent(rhs));
|
|
}
|
|
|
|
static int LightCompareImpl(const void* elm, const IntrusiveRedBlackTreeNode* rhs) {
|
|
return Comparator::Compare(*static_cast<const_light_pointer>(elm), *Traits::GetParent(rhs));
|
|
}
|
|
|
|
// Define accessors using RB_* functions.
|
|
IntrusiveRedBlackTreeNode* InsertImpl(IntrusiveRedBlackTreeNode* node) {
|
|
return RB_INSERT(IntrusiveRedBlackTreeRootWithCompare,
|
|
static_cast<IntrusiveRedBlackTreeRootWithCompare*>(&this->impl.root),
|
|
node);
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* FindImpl(const IntrusiveRedBlackTreeNode* node) const {
|
|
return RB_FIND(
|
|
IntrusiveRedBlackTreeRootWithCompare,
|
|
const_cast<IntrusiveRedBlackTreeRootWithCompare*>(
|
|
static_cast<const IntrusiveRedBlackTreeRootWithCompare*>(&this->impl.root)),
|
|
const_cast<IntrusiveRedBlackTreeNode*>(node));
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* NFindImpl(const IntrusiveRedBlackTreeNode* node) const {
|
|
return RB_NFIND(
|
|
IntrusiveRedBlackTreeRootWithCompare,
|
|
const_cast<IntrusiveRedBlackTreeRootWithCompare*>(
|
|
static_cast<const IntrusiveRedBlackTreeRootWithCompare*>(&this->impl.root)),
|
|
const_cast<IntrusiveRedBlackTreeNode*>(node));
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* FindLightImpl(const_light_pointer lelm) const {
|
|
return RB_FIND_LIGHT(
|
|
IntrusiveRedBlackTreeRootWithCompare,
|
|
const_cast<IntrusiveRedBlackTreeRootWithCompare*>(
|
|
static_cast<const IntrusiveRedBlackTreeRootWithCompare*>(&this->impl.root)),
|
|
static_cast<const void*>(lelm));
|
|
}
|
|
|
|
IntrusiveRedBlackTreeNode* NFindLightImpl(const_light_pointer lelm) const {
|
|
return RB_NFIND_LIGHT(
|
|
IntrusiveRedBlackTreeRootWithCompare,
|
|
const_cast<IntrusiveRedBlackTreeRootWithCompare*>(
|
|
static_cast<const IntrusiveRedBlackTreeRootWithCompare*>(&this->impl.root)),
|
|
static_cast<const void*>(lelm));
|
|
}
|
|
|
|
public:
|
|
constexpr IntrusiveRedBlackTree() = default;
|
|
|
|
// Iterator accessors.
|
|
iterator begin() {
|
|
return iterator(this->impl.begin());
|
|
}
|
|
|
|
const_iterator begin() const {
|
|
return const_iterator(this->impl.begin());
|
|
}
|
|
|
|
iterator end() {
|
|
return iterator(this->impl.end());
|
|
}
|
|
|
|
const_iterator end() const {
|
|
return const_iterator(this->impl.end());
|
|
}
|
|
|
|
const_iterator cbegin() const {
|
|
return this->begin();
|
|
}
|
|
|
|
const_iterator cend() const {
|
|
return this->end();
|
|
}
|
|
|
|
iterator iterator_to(reference ref) {
|
|
return iterator(this->impl.iterator_to(*Traits::GetNode(std::addressof(ref))));
|
|
}
|
|
|
|
const_iterator iterator_to(const_reference ref) const {
|
|
return const_iterator(this->impl.iterator_to(*Traits::GetNode(std::addressof(ref))));
|
|
}
|
|
|
|
// Content management.
|
|
bool empty() const {
|
|
return this->impl.empty();
|
|
}
|
|
|
|
reference back() {
|
|
return *Traits::GetParent(std::addressof(this->impl.back()));
|
|
}
|
|
|
|
const_reference back() const {
|
|
return *Traits::GetParent(std::addressof(this->impl.back()));
|
|
}
|
|
|
|
reference front() {
|
|
return *Traits::GetParent(std::addressof(this->impl.front()));
|
|
}
|
|
|
|
const_reference front() const {
|
|
return *Traits::GetParent(std::addressof(this->impl.front()));
|
|
}
|
|
|
|
iterator erase(iterator it) {
|
|
return iterator(this->impl.erase(it.GetImplIterator()));
|
|
}
|
|
|
|
iterator insert(reference ref) {
|
|
ImplType::pointer node = Traits::GetNode(std::addressof(ref));
|
|
this->InsertImpl(node);
|
|
return iterator(node);
|
|
}
|
|
|
|
iterator find(const_reference ref) const {
|
|
return iterator(this->FindImpl(Traits::GetNode(std::addressof(ref))));
|
|
}
|
|
|
|
iterator nfind(const_reference ref) const {
|
|
return iterator(this->NFindImpl(Traits::GetNode(std::addressof(ref))));
|
|
}
|
|
|
|
iterator find_light(const_light_reference ref) const {
|
|
return iterator(this->FindLightImpl(std::addressof(ref)));
|
|
}
|
|
|
|
iterator nfind_light(const_light_reference ref) const {
|
|
return iterator(this->NFindLightImpl(std::addressof(ref)));
|
|
}
|
|
};
|
|
|
|
template <auto T, class Derived = impl::GetParentType<T>>
|
|
class IntrusiveRedBlackTreeMemberTraits;
|
|
|
|
template <class Parent, IntrusiveRedBlackTreeNode Parent::*Member, class Derived>
|
|
class IntrusiveRedBlackTreeMemberTraits<Member, Derived> {
|
|
public:
|
|
template <class Comparator>
|
|
using TreeType = IntrusiveRedBlackTree<Derived, IntrusiveRedBlackTreeMemberTraits, Comparator>;
|
|
using TreeTypeImpl = impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
private:
|
|
template <class, class, class>
|
|
friend class IntrusiveRedBlackTree;
|
|
|
|
friend class impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
static constexpr IntrusiveRedBlackTreeNode* GetNode(Derived* parent) {
|
|
return std::addressof(parent->*Member);
|
|
}
|
|
|
|
static constexpr IntrusiveRedBlackTreeNode const* GetNode(Derived const* parent) {
|
|
return std::addressof(parent->*Member);
|
|
}
|
|
|
|
static constexpr Derived* GetParent(IntrusiveRedBlackTreeNode* node) {
|
|
return GetParentPointer<Member, Derived>(node);
|
|
}
|
|
|
|
static constexpr Derived const* GetParent(const IntrusiveRedBlackTreeNode* node) {
|
|
return GetParentPointer<Member, Derived>(node);
|
|
}
|
|
|
|
private:
|
|
static constexpr TypedStorage<Derived> DerivedStorage = {};
|
|
static_assert(GetParent(GetNode(GetPointer(DerivedStorage))) == GetPointer(DerivedStorage));
|
|
};
|
|
|
|
template <auto T, class Derived = impl::GetParentType<T>>
|
|
class IntrusiveRedBlackTreeMemberTraitsDeferredAssert;
|
|
|
|
template <class Parent, IntrusiveRedBlackTreeNode Parent::*Member, class Derived>
|
|
class IntrusiveRedBlackTreeMemberTraitsDeferredAssert<Member, Derived> {
|
|
public:
|
|
template <class Comparator>
|
|
using TreeType =
|
|
IntrusiveRedBlackTree<Derived, IntrusiveRedBlackTreeMemberTraitsDeferredAssert, Comparator>;
|
|
using TreeTypeImpl = impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
static constexpr bool IsValid() {
|
|
TypedStorage<Derived> DerivedStorage = {};
|
|
return GetParent(GetNode(GetPointer(DerivedStorage))) == GetPointer(DerivedStorage);
|
|
}
|
|
|
|
private:
|
|
template <class, class, class>
|
|
friend class IntrusiveRedBlackTree;
|
|
|
|
friend class impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
static constexpr IntrusiveRedBlackTreeNode* GetNode(Derived* parent) {
|
|
return std::addressof(parent->*Member);
|
|
}
|
|
|
|
static constexpr IntrusiveRedBlackTreeNode const* GetNode(Derived const* parent) {
|
|
return std::addressof(parent->*Member);
|
|
}
|
|
|
|
static constexpr Derived* GetParent(IntrusiveRedBlackTreeNode* node) {
|
|
return GetParentPointer<Member, Derived>(node);
|
|
}
|
|
|
|
static constexpr Derived const* GetParent(const IntrusiveRedBlackTreeNode* node) {
|
|
return GetParentPointer<Member, Derived>(node);
|
|
}
|
|
};
|
|
|
|
template <class Derived>
|
|
class IntrusiveRedBlackTreeBaseNode : public IntrusiveRedBlackTreeNode {
|
|
public:
|
|
constexpr Derived* GetPrev() {
|
|
return static_cast<Derived*>(impl::IntrusiveRedBlackTreeImpl::GetPrev(this));
|
|
}
|
|
constexpr const Derived* GetPrev() const {
|
|
return static_cast<const Derived*>(impl::IntrusiveRedBlackTreeImpl::GetPrev(this));
|
|
}
|
|
|
|
constexpr Derived* GetNext() {
|
|
return static_cast<Derived*>(impl::IntrusiveRedBlackTreeImpl::GetNext(this));
|
|
}
|
|
constexpr const Derived* GetNext() const {
|
|
return static_cast<const Derived*>(impl::IntrusiveRedBlackTreeImpl::GetNext(this));
|
|
}
|
|
};
|
|
|
|
template <class Derived>
|
|
class IntrusiveRedBlackTreeBaseTraits {
|
|
public:
|
|
template <class Comparator>
|
|
using TreeType = IntrusiveRedBlackTree<Derived, IntrusiveRedBlackTreeBaseTraits, Comparator>;
|
|
using TreeTypeImpl = impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
private:
|
|
template <class, class, class>
|
|
friend class IntrusiveRedBlackTree;
|
|
|
|
friend class impl::IntrusiveRedBlackTreeImpl;
|
|
|
|
static constexpr IntrusiveRedBlackTreeNode* GetNode(Derived* parent) {
|
|
return static_cast<IntrusiveRedBlackTreeNode*>(parent);
|
|
}
|
|
|
|
static constexpr IntrusiveRedBlackTreeNode const* GetNode(Derived const* parent) {
|
|
return static_cast<const IntrusiveRedBlackTreeNode*>(parent);
|
|
}
|
|
|
|
static constexpr Derived* GetParent(IntrusiveRedBlackTreeNode* node) {
|
|
return static_cast<Derived*>(node);
|
|
}
|
|
|
|
static constexpr Derived const* GetParent(const IntrusiveRedBlackTreeNode* node) {
|
|
return static_cast<const Derived*>(node);
|
|
}
|
|
};
|
|
|
|
} // namespace Common
|