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Merge pull request #92554 from Nazarwadim/implement_a_hash_map

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Implement array based hash map `AHashMap`
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Thaddeus Crews 2024-10-25 13:03:45 -05:00
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13 changed files with 1202 additions and 51 deletions
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core/templates/a_hash_map.cpp Normal file
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/**************************************************************************/
/* a_hash_map.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "a_hash_map.h"
#include "core/variant/variant.h"
// Explicit instantiation.
template class AHashMap<int, int>;
template class AHashMap<String, int>;
template class AHashMap<StringName, StringName>;
template class AHashMap<StringName, Variant>;
template class AHashMap<StringName, int>;

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core/templates/a_hash_map.h Normal file
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/**************************************************************************/
/* a_hash_map.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef A_HASH_MAP_H
#define A_HASH_MAP_H
#include "core/templates/hash_map.h"
struct HashMapData {
union {
struct
{
uint32_t hash;
uint32_t hash_to_key;
};
uint64_t data;
};
};
static_assert(sizeof(HashMapData) == 8);
/**
* An array-based implementation of a hash map. It is very efficient in terms of performance and
* memory usage. Works like a dynamic array, adding elements to the end of the array, and
* allows you to access array elements by their index by using `get_by_index` method.
* Example:
* ```
* AHashMap<int, Object *> map;
*
* int get_object_id_by_number(int p_number) {
* int id = map.get_index(p_number);
* return id;
* }
*
* Object *get_object_by_id(int p_id) {
* map.get_by_index(p_id).value;
* }
* ```
* Still, don`t erase the elements because ID can break.
*
* When an element erase, its place is taken by the element from the end.
*
* <-------------
* | |
* 6 8 X 9 32 -1 5 -10 7 X X X
* 6 8 7 9 32 -1 5 -10 X X X X
*
*
* Use RBMap if you need to iterate over sorted elements.
*
* Use HashMap if:
* - You need to keep an iterator or const pointer to Key and you intend to add/remove elements in the meantime.
* - You need to preserve the insertion order when using erase.
*
* It is recommended to use `HashMap` if `KeyValue` size is very large.
*/
template <typename TKey, typename TValue,
typename Hasher = HashMapHasherDefault,
typename Comparator = HashMapComparatorDefault<TKey>>
class AHashMap {
public:
// Must be a power of two.
static constexpr uint32_t INITIAL_CAPACITY = 16;
static constexpr uint32_t EMPTY_HASH = 0;
static_assert(EMPTY_HASH == 0, "EMPTY_HASH must always be 0 for the memcpy() optimization.");
private:
typedef KeyValue<TKey, TValue> MapKeyValue;
MapKeyValue *elements = nullptr;
HashMapData *map_data = nullptr;
// Due to optimization, this is `capacity - 1`. Use + 1 to get normal capacity.
uint32_t capacity = 0;
uint32_t num_elements = 0;
uint32_t _hash(const TKey &p_key) const {
uint32_t hash = Hasher::hash(p_key);
if (unlikely(hash == EMPTY_HASH)) {
hash = EMPTY_HASH + 1;
}
return hash;
}
static _FORCE_INLINE_ uint32_t _get_resize_count(uint32_t p_capacity) {
return p_capacity ^ (p_capacity + 1) >> 2; // = get_capacity() * 0.75 - 1; Works only if p_capacity = 2^n - 1.
}
static _FORCE_INLINE_ uint32_t _get_probe_length(uint32_t p_pos, uint32_t p_hash, uint32_t p_local_capacity) {
const uint32_t original_pos = p_hash & p_local_capacity;
return (p_pos - original_pos + p_local_capacity + 1) & p_local_capacity;
}
bool _lookup_pos(const TKey &p_key, uint32_t &r_pos, uint32_t &r_hash_pos) const {
if (unlikely(elements == nullptr)) {
return false; // Failed lookups, no elements.
}
return _lookup_pos_with_hash(p_key, r_pos, r_hash_pos, _hash(p_key));
}
bool _lookup_pos_with_hash(const TKey &p_key, uint32_t &r_pos, uint32_t &r_hash_pos, uint32_t p_hash) const {
if (unlikely(elements == nullptr)) {
return false; // Failed lookups, no elements.
}
uint32_t pos = p_hash & capacity;
HashMapData data = map_data[pos];
if (data.hash == p_hash && Comparator::compare(elements[data.hash_to_key].key, p_key)) {
r_pos = data.hash_to_key;
r_hash_pos = pos;
return true;
}
if (data.data == EMPTY_HASH) {
return false;
}
// A collision occurred.
pos = (pos + 1) & capacity;
uint32_t distance = 1;
while (true) {
data = map_data[pos];
if (data.hash == p_hash && Comparator::compare(elements[data.hash_to_key].key, p_key)) {
r_pos = data.hash_to_key;
r_hash_pos = pos;
return true;
}
if (data.data == EMPTY_HASH) {
return false;
}
if (distance > _get_probe_length(pos, data.hash, capacity)) {
return false;
}
pos = (pos + 1) & capacity;
distance++;
}
}
uint32_t _insert_with_hash(uint32_t p_hash, uint32_t p_index) {
uint32_t pos = p_hash & capacity;
if (map_data[pos].data == EMPTY_HASH) {
uint64_t data = ((uint64_t)p_index << 32) | p_hash;
map_data[pos].data = data;
return pos;
}
uint32_t distance = 1;
pos = (pos + 1) & capacity;
HashMapData c_data;
c_data.hash = p_hash;
c_data.hash_to_key = p_index;
while (true) {
if (map_data[pos].data == EMPTY_HASH) {
#ifdef DEV_ENABLED
if (unlikely(distance > 12)) {
WARN_PRINT("Excessive collision count (" +
itos(distance) + "), is the right hash function being used?");
}
#endif
map_data[pos] = c_data;
return pos;
}
// Not an empty slot, let's check the probing length of the existing one.
uint32_t existing_probe_len = _get_probe_length(pos, map_data[pos].hash, capacity);
if (existing_probe_len < distance) {
SWAP(c_data, map_data[pos]);
distance = existing_probe_len;
}
pos = (pos + 1) & capacity;
distance++;
}
}
void _resize_and_rehash(uint32_t p_new_capacity) {
uint32_t real_old_capacity = capacity + 1;
// Capacity can't be 0 and must be 2^n - 1.
capacity = MAX(4u, p_new_capacity);
uint32_t real_capacity = next_power_of_2(capacity);
capacity = real_capacity - 1;
HashMapData *old_map_data = map_data;
map_data = reinterpret_cast<HashMapData *>(Memory::alloc_static(sizeof(HashMapData) * real_capacity));
elements = reinterpret_cast<MapKeyValue *>(Memory::realloc_static(elements, sizeof(MapKeyValue) * (_get_resize_count(capacity) + 1)));
memset(map_data, EMPTY_HASH, real_capacity * sizeof(HashMapData));
if (num_elements != 0) {
for (uint32_t i = 0; i < real_old_capacity; i++) {
HashMapData data = old_map_data[i];
if (data.data != EMPTY_HASH) {
_insert_with_hash(data.hash, data.hash_to_key);
}
}
}
Memory::free_static(old_map_data);
}
int32_t _insert_element(const TKey &p_key, const TValue &p_value, uint32_t p_hash) {
if (unlikely(elements == nullptr)) {
// Allocate on demand to save memory.
uint32_t real_capacity = capacity + 1;
map_data = reinterpret_cast<HashMapData *>(Memory::alloc_static(sizeof(HashMapData) * real_capacity));
elements = reinterpret_cast<MapKeyValue *>(Memory::alloc_static(sizeof(MapKeyValue) * (_get_resize_count(capacity) + 1)));
memset(map_data, EMPTY_HASH, real_capacity * sizeof(HashMapData));
}
if (unlikely(num_elements > _get_resize_count(capacity))) {
_resize_and_rehash(capacity * 2);
}
memnew_placement(&elements[num_elements], MapKeyValue(p_key, p_value));
_insert_with_hash(p_hash, num_elements);
num_elements++;
return num_elements - 1;
}
void _init_from(const AHashMap &p_other) {
capacity = p_other.capacity;
uint32_t real_capacity = capacity + 1;
num_elements = p_other.num_elements;
if (p_other.num_elements == 0) {
return;
}
map_data = reinterpret_cast<HashMapData *>(Memory::alloc_static(sizeof(HashMapData) * real_capacity));
elements = reinterpret_cast<MapKeyValue *>(Memory::alloc_static(sizeof(MapKeyValue) * (_get_resize_count(capacity) + 1)));
if constexpr (std::is_trivially_copyable_v<TKey> && std::is_trivially_copyable_v<TValue>) {
void *destination = elements;
const void *source = p_other.elements;
memcpy(destination, source, sizeof(MapKeyValue) * num_elements);
} else {
for (uint32_t i = 0; i < num_elements; i++) {
memnew_placement(&elements[i], MapKeyValue(p_other.elements[i]));
}
}
memcpy(map_data, p_other.map_data, sizeof(HashMapData) * real_capacity);
}
public:
/* Standard Godot Container API */
_FORCE_INLINE_ uint32_t get_capacity() const { return capacity + 1; }
_FORCE_INLINE_ uint32_t size() const { return num_elements; }
_FORCE_INLINE_ bool is_empty() const {
return num_elements == 0;
}
void clear() {
if (elements == nullptr || num_elements == 0) {
return;
}
memset(map_data, EMPTY_HASH, (capacity + 1) * sizeof(HashMapData));
if constexpr (!(std::is_trivially_destructible_v<TKey> && std::is_trivially_destructible_v<TValue>)) {
for (uint32_t i = 0; i < num_elements; i++) {
elements[i].key.~TKey();
elements[i].value.~TValue();
}
}
num_elements = 0;
}
TValue &get(const TKey &p_key) {
uint32_t pos = 0;
uint32_t hash_pos = 0;
bool exists = _lookup_pos(p_key, pos, hash_pos);
CRASH_COND_MSG(!exists, "AHashMap key not found.");
return elements[pos].value;
}
const TValue &get(const TKey &p_key) const {
uint32_t pos = 0;
uint32_t hash_pos = 0;
bool exists = _lookup_pos(p_key, pos, hash_pos);
CRASH_COND_MSG(!exists, "AHashMap key not found.");
return elements[pos].value;
}
const TValue *getptr(const TKey &p_key) const {
uint32_t pos = 0;
uint32_t hash_pos = 0;
bool exists = _lookup_pos(p_key, pos, hash_pos);
if (exists) {
return &elements[pos].value;
}
return nullptr;
}
TValue *getptr(const TKey &p_key) {
uint32_t pos = 0;
uint32_t hash_pos = 0;
bool exists = _lookup_pos(p_key, pos, hash_pos);
if (exists) {
return &elements[pos].value;
}
return nullptr;
}
bool has(const TKey &p_key) const {
uint32_t _pos = 0;
uint32_t h_pos = 0;
return _lookup_pos(p_key, _pos, h_pos);
}
bool erase(const TKey &p_key) {
uint32_t pos = 0;
uint32_t element_pos = 0;
bool exists = _lookup_pos(p_key, element_pos, pos);
if (!exists) {
return false;
}
uint32_t next_pos = (pos + 1) & capacity;
while (map_data[next_pos].hash != EMPTY_HASH && _get_probe_length(next_pos, map_data[next_pos].hash, capacity) != 0) {
SWAP(map_data[next_pos], map_data[pos]);
pos = next_pos;
next_pos = (next_pos + 1) & capacity;
}
map_data[pos].data = EMPTY_HASH;
elements[element_pos].key.~TKey();
elements[element_pos].value.~TValue();
num_elements--;
if (element_pos < num_elements) {
void *destination = &elements[element_pos];
const void *source = &elements[num_elements];
memcpy(destination, source, sizeof(MapKeyValue));
uint32_t h_pos = 0;
_lookup_pos(elements[num_elements].key, pos, h_pos);
map_data[h_pos].hash_to_key = element_pos;
}
return true;
}
// Replace the key of an entry in-place, without invalidating iterators or changing the entries position during iteration.
// p_old_key must exist in the map and p_new_key must not, unless it is equal to p_old_key.
bool replace_key(const TKey &p_old_key, const TKey &p_new_key) {
if (p_old_key == p_new_key) {
return true;
}
uint32_t pos = 0;
uint32_t element_pos = 0;
ERR_FAIL_COND_V(_lookup_pos(p_new_key, element_pos, pos), false);
ERR_FAIL_COND_V(!_lookup_pos(p_old_key, element_pos, pos), false);
MapKeyValue &element = elements[element_pos];
const_cast<TKey &>(element.key) = p_new_key;
uint32_t next_pos = (pos + 1) & capacity;
while (map_data[next_pos].hash != EMPTY_HASH && _get_probe_length(next_pos, map_data[next_pos].hash, capacity) != 0) {
SWAP(map_data[next_pos], map_data[pos]);
pos = next_pos;
next_pos = (next_pos + 1) & capacity;
}
map_data[pos].data = EMPTY_HASH;
uint32_t hash = _hash(p_new_key);
_insert_with_hash(hash, element_pos);
return true;
}
// Reserves space for a number of elements, useful to avoid many resizes and rehashes.
// If adding a known (possibly large) number of elements at once, must be larger than old capacity.
void reserve(uint32_t p_new_capacity) {
ERR_FAIL_COND_MSG(p_new_capacity < get_capacity(), "It is impossible to reserve less capacity than is currently available.");
if (elements == nullptr) {
capacity = MAX(4u, p_new_capacity);
capacity = next_power_of_2(capacity) - 1;
return; // Unallocated yet.
}
_resize_and_rehash(p_new_capacity);
}
/** Iterator API **/
struct ConstIterator {
_FORCE_INLINE_ const MapKeyValue &operator*() const {
return *pair;
}
_FORCE_INLINE_ const MapKeyValue *operator->() const {
return pair;
}
_FORCE_INLINE_ ConstIterator &operator++() {
pair++;
return *this;
}
_FORCE_INLINE_ ConstIterator &operator--() {
pair--;
if (pair < begin) {
pair = end;
}
return *this;
}
_FORCE_INLINE_ bool operator==(const ConstIterator &b) const { return pair == b.pair; }
_FORCE_INLINE_ bool operator!=(const ConstIterator &b) const { return pair != b.pair; }
_FORCE_INLINE_ explicit operator bool() const {
return pair != end;
}
_FORCE_INLINE_ ConstIterator(MapKeyValue *p_key, MapKeyValue *p_begin, MapKeyValue *p_end) {
pair = p_key;
begin = p_begin;
end = p_end;
}
_FORCE_INLINE_ ConstIterator() {}
_FORCE_INLINE_ ConstIterator(const ConstIterator &p_it) {
pair = p_it.pair;
begin = p_it.begin;
end = p_it.end;
}
_FORCE_INLINE_ void operator=(const ConstIterator &p_it) {
pair = p_it.pair;
begin = p_it.begin;
end = p_it.end;
}
private:
MapKeyValue *pair = nullptr;
MapKeyValue *begin = nullptr;
MapKeyValue *end = nullptr;
};
struct Iterator {
_FORCE_INLINE_ MapKeyValue &operator*() const {
return *pair;
}
_FORCE_INLINE_ MapKeyValue *operator->() const {
return pair;
}
_FORCE_INLINE_ Iterator &operator++() {
pair++;
return *this;
}
_FORCE_INLINE_ Iterator &operator--() {
pair--;
if (pair < begin) {
pair = end;
}
return *this;
}
_FORCE_INLINE_ bool operator==(const Iterator &b) const { return pair == b.pair; }
_FORCE_INLINE_ bool operator!=(const Iterator &b) const { return pair != b.pair; }
_FORCE_INLINE_ explicit operator bool() const {
return pair != end;
}
_FORCE_INLINE_ Iterator(MapKeyValue *p_key, MapKeyValue *p_begin, MapKeyValue *p_end) {
pair = p_key;
begin = p_begin;
end = p_end;
}
_FORCE_INLINE_ Iterator() {}
_FORCE_INLINE_ Iterator(const Iterator &p_it) {
pair = p_it.pair;
begin = p_it.begin;
end = p_it.end;
}
_FORCE_INLINE_ void operator=(const Iterator &p_it) {
pair = p_it.pair;
begin = p_it.begin;
end = p_it.end;
}
operator ConstIterator() const {
return ConstIterator(pair, begin, end);
}
private:
MapKeyValue *pair = nullptr;
MapKeyValue *begin = nullptr;
MapKeyValue *end = nullptr;
};
_FORCE_INLINE_ Iterator begin() {
return Iterator(elements, elements, elements + num_elements);
}
_FORCE_INLINE_ Iterator end() {
return Iterator(elements + num_elements, elements, elements + num_elements);
}
_FORCE_INLINE_ Iterator last() {
if (unlikely(num_elements == 0)) {
return Iterator(nullptr, nullptr, nullptr);
}
return Iterator(elements + num_elements - 1, elements, elements + num_elements);
}
Iterator find(const TKey &p_key) {
uint32_t pos = 0;
uint32_t h_pos = 0;
bool exists = _lookup_pos(p_key, pos, h_pos);
if (!exists) {
return end();
}
return Iterator(elements + pos, elements, elements + num_elements);
}
void remove(const Iterator &p_iter) {
if (p_iter) {
erase(p_iter->key);
}
}
_FORCE_INLINE_ ConstIterator begin() const {
return ConstIterator(elements, elements, elements + num_elements);
}
_FORCE_INLINE_ ConstIterator end() const {
return ConstIterator(elements + num_elements, elements, elements + num_elements);
}
_FORCE_INLINE_ ConstIterator last() const {
if (unlikely(num_elements == 0)) {
return ConstIterator(nullptr, nullptr, nullptr);
}
return ConstIterator(elements + num_elements - 1, elements, elements + num_elements);
}
ConstIterator find(const TKey &p_key) const {
uint32_t pos = 0;
uint32_t h_pos = 0;
bool exists = _lookup_pos(p_key, pos, h_pos);
if (!exists) {
return end();
}
return ConstIterator(elements + pos, elements, elements + num_elements);
}
/* Indexing */
const TValue &operator[](const TKey &p_key) const {
uint32_t pos = 0;
uint32_t h_pos = 0;
bool exists = _lookup_pos(p_key, pos, h_pos);
CRASH_COND(!exists);
return elements[pos].value;
}
TValue &operator[](const TKey &p_key) {
uint32_t pos = 0;
uint32_t h_pos = 0;
uint32_t hash = _hash(p_key);
bool exists = _lookup_pos_with_hash(p_key, pos, h_pos, hash);
if (exists) {
return elements[pos].value;
} else {
pos = _insert_element(p_key, TValue(), hash);
return elements[pos].value;
}
}
/* Insert */
Iterator insert(const TKey &p_key, const TValue &p_value) {
uint32_t pos = 0;
uint32_t h_pos = 0;
uint32_t hash = _hash(p_key);
bool exists = _lookup_pos_with_hash(p_key, pos, h_pos, hash);
if (!exists) {
pos = _insert_element(p_key, p_value, hash);
} else {
elements[pos].value = p_value;
}
return Iterator(elements + pos, elements, elements + num_elements);
}
// Inserts an element without checking if it already exists.
void insert_new(const TKey &p_key, const TValue &p_value) {
DEV_ASSERT(!has(p_key));
uint32_t hash = _hash(p_key);
_insert_element(p_key, p_value, hash);
}
/* Array methods. */
// Unsafe. Changing keys and going outside the bounds of an array can lead to undefined behavior.
KeyValue<TKey, TValue> *get_elements_ptr() {
return elements;
}
// Returns the element index. If not found, returns -1.
int get_index(const TKey &p_key) {
uint32_t pos = 0;
uint32_t h_pos = 0;
bool exists = _lookup_pos(p_key, pos, h_pos);
if (!exists) {
return -1;
}
return pos;
}
KeyValue<TKey, TValue> &get_by_index(uint32_t p_index) {
CRASH_BAD_UNSIGNED_INDEX(p_index, num_elements);
return elements[p_index];
}
bool erase_by_index(uint32_t p_index) {
if (p_index >= size()) {
return false;
}
return erase(elements[p_index].key);
}
/* Constructors */
AHashMap(const AHashMap &p_other) {
_init_from(p_other);
}
AHashMap(const HashMap<TKey, TValue> &p_other) {
reserve(p_other.size());
for (const KeyValue<TKey, TValue> &E : p_other) {
uint32_t hash = _hash(E.key);
_insert_element(E.key, E.value, hash);
}
}
void operator=(const AHashMap &p_other) {
if (this == &p_other) {
return; // Ignore self assignment.
}
reset();
_init_from(p_other);
}
void operator=(const HashMap<TKey, TValue> &p_other) {
reset();
if (p_other.size() > get_capacity()) {
reserve(p_other.size());
}
for (const KeyValue<TKey, TValue> &E : p_other) {
uint32_t hash = _hash(E.key);
_insert_element(E.key, E.value, hash);
}
}
AHashMap(uint32_t p_initial_capacity) {
// Capacity can't be 0 and must be 2^n - 1.
capacity = MAX(4u, p_initial_capacity);
capacity = next_power_of_2(capacity) - 1;
}
AHashMap() :
capacity(INITIAL_CAPACITY - 1) {
}
void reset() {
if (elements != nullptr) {
if constexpr (!(std::is_trivially_destructible_v<TKey> && std::is_trivially_destructible_v<TValue>)) {
for (uint32_t i = 0; i < num_elements; i++) {
elements[i].key.~TKey();
elements[i].value.~TValue();
}
}
Memory::free_static(elements);
Memory::free_static(map_data);
elements = nullptr;
}
capacity = INITIAL_CAPACITY - 1;
num_elements = 0;
}
~AHashMap() {
reset();
}
};
extern template class AHashMap<int, int>;
extern template class AHashMap<String, int>;
extern template class AHashMap<StringName, StringName>;
extern template class AHashMap<StringName, Variant>;
extern template class AHashMap<StringName, int>;
#endif // A_HASH_MAP_H

7
core/templates/hashfuncs.h
View File

@ -393,6 +393,13 @@ struct HashMapHasherDefault {
}
};
struct HashHasher {
static _FORCE_INLINE_ uint32_t hash(const int32_t hash) { return hash; }
static _FORCE_INLINE_ uint32_t hash(const uint32_t hash) { return hash; }
static _FORCE_INLINE_ uint64_t hash(const int64_t hash) { return hash; }
static _FORCE_INLINE_ uint64_t hash(const uint64_t hash) { return hash; }
};
// TODO: Fold this into HashMapHasherDefault once C++20 concepts are allowed
template <typename T>
struct HashableHasher {

3
scene/3d/skeleton_3d.h
View File

@ -31,6 +31,7 @@
#ifndef SKELETON_3D_H
#define SKELETON_3D_H
#include "core/templates/a_hash_map.h"
#include "scene/3d/node_3d.h"
#include "scene/resources/3d/skin.h"
@ -159,7 +160,7 @@ private:
bool process_order_dirty = false;
Vector<int> parentless_bones;
HashMap<String, int> name_to_bone_index;
AHashMap<String, int> name_to_bone_index;
mutable StringName concatenated_bone_names = StringName();
void _update_bone_names() const;

66
scene/animation/animation_mixer.cpp
View File

@ -563,6 +563,7 @@ void AnimationMixer::_clear_caches() {
memdelete(K.value);
}
track_cache.clear();
animation_track_num_to_track_cashe.clear();
cache_valid = false;
capture_cache.clear();
@ -922,6 +923,27 @@ bool AnimationMixer::_update_caches() {
idx++;
}
for (KeyValue<Animation::TypeHash, TrackCache *> &K : track_cache) {
K.value->blend_idx = track_map[K.value->path];
}
animation_track_num_to_track_cashe.clear();
LocalVector<TrackCache *> track_num_to_track_cashe;
for (const StringName &E : sname_list) {
Ref<Animation> anim = get_animation(E);
const Vector<Animation::Track *> tracks = anim->get_tracks();
track_num_to_track_cashe.resize(tracks.size());
for (int i = 0; i < tracks.size(); i++) {
TrackCache **track_ptr = track_cache.getptr(tracks[i]->thash);
if (track_ptr == nullptr) {
track_num_to_track_cashe[i] = nullptr;
} else {
track_num_to_track_cashe[i] = *track_ptr;
}
}
animation_track_num_to_track_cashe.insert(anim, track_num_to_track_cashe);
}
track_count = idx;
cache_valid = true;
@ -946,7 +968,7 @@ void AnimationMixer::_process_animation(double p_delta, bool p_update_only) {
clear_animation_instances();
}
Variant AnimationMixer::_post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant p_value, ObjectID p_object_id, int p_object_sub_idx) {
Variant AnimationMixer::_post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant &p_value, ObjectID p_object_id, int p_object_sub_idx) {
#ifndef _3D_DISABLED
switch (p_anim->track_get_type(p_track)) {
case Animation::TYPE_POSITION_3D: {
@ -1033,7 +1055,7 @@ void AnimationMixer::_blend_init() {
}
}
bool AnimationMixer::_blend_pre_process(double p_delta, int p_track_count, const HashMap<NodePath, int> &p_track_map) {
bool AnimationMixer::_blend_pre_process(double p_delta, int p_track_count, const AHashMap<NodePath, int> &p_track_map) {
return true;
}
@ -1084,26 +1106,30 @@ void AnimationMixer::_blend_calc_total_weight() {
real_t weight = ai.playback_info.weight;
const real_t *track_weights_ptr = ai.playback_info.track_weights.ptr();
int track_weights_count = ai.playback_info.track_weights.size();
static LocalVector<Animation::TypeHash> processed_hashes;
ERR_CONTINUE_EDMSG(!animation_track_num_to_track_cashe.has(a), "No animation in cache.");
LocalVector<TrackCache *> &track_num_to_track_cashe = animation_track_num_to_track_cashe[a];
thread_local HashSet<Animation::TypeHash, HashHasher> processed_hashes;
processed_hashes.clear();
const Vector<Animation::Track *> tracks = a->get_tracks();
for (const Animation::Track *animation_track : tracks) {
Animation::Track *const *tracks_ptr = tracks.ptr();
int count = tracks.size();
for (int i = 0; i < count; i++) {
Animation::Track *animation_track = tracks_ptr[i];
if (!animation_track->enabled) {
continue;
}
Animation::TypeHash thash = animation_track->thash;
TrackCache **track_ptr = track_cache.getptr(thash);
if (track_ptr == nullptr || processed_hashes.has(thash)) {
TrackCache *track = track_num_to_track_cashe[i];
if (track == nullptr || processed_hashes.has(thash)) {
// No path, but avoid error spamming.
// Or, there is the case different track type with same path; These can be distinguished by hash. So don't add the weight doubly.
continue;
}
TrackCache *track = *track_ptr;
int blend_idx = track_map[track->path];
int blend_idx = track->blend_idx;
ERR_CONTINUE(blend_idx < 0 || blend_idx >= track_count);
real_t blend = blend_idx < track_weights_count ? track_weights_ptr[blend_idx] * weight : weight;
track->total_weight += blend;
processed_hashes.push_back(thash);
processed_hashes.insert(thash);
}
}
}
@ -1130,6 +1156,8 @@ void AnimationMixer::_blend_process(double p_delta, bool p_update_only) {
#ifndef _3D_DISABLED
bool calc_root = !seeked || is_external_seeking;
#endif // _3D_DISABLED
ERR_CONTINUE_EDMSG(!animation_track_num_to_track_cashe.has(a), "No animation in cache.");
LocalVector<TrackCache *> &track_num_to_track_cashe = animation_track_num_to_track_cashe[a];
const Vector<Animation::Track *> tracks = a->get_tracks();
Animation::Track *const *tracks_ptr = tracks.ptr();
real_t a_length = a->get_length();
@ -1139,15 +1167,11 @@ void AnimationMixer::_blend_process(double p_delta, bool p_update_only) {
if (!animation_track->enabled) {
continue;
}
Animation::TypeHash thash = animation_track->thash;
TrackCache **track_ptr = track_cache.getptr(thash);
if (track_ptr == nullptr) {
TrackCache *track = track_num_to_track_cashe[i];
if (track == nullptr) {
continue; // No path, but avoid error spamming.
}
TrackCache *track = *track_ptr;
int *blend_idx_ptr = track_map.getptr(track->path);
ERR_CONTINUE(blend_idx_ptr == nullptr);
int blend_idx = *blend_idx_ptr;
int blend_idx = track->blend_idx;
ERR_CONTINUE(blend_idx < 0 || blend_idx >= track_count);
real_t blend = blend_idx < track_weights_count ? track_weights_ptr[blend_idx] * weight : weight;
if (!deterministic) {
@ -1581,7 +1605,7 @@ void AnimationMixer::_blend_process(double p_delta, bool p_update_only) {
track_info.loop = a->get_loop_mode() != Animation::LOOP_NONE;
track_info.backward = backward;
track_info.use_blend = a->audio_track_is_use_blend(i);
HashMap<int, PlayingAudioStreamInfo> &map = track_info.stream_info;
AHashMap<int, PlayingAudioStreamInfo> &map = track_info.stream_info;
// Main process to fire key is started from here.
if (p_update_only) {
@ -1850,7 +1874,7 @@ void AnimationMixer::_blend_apply() {
PlayingAudioTrackInfo &track_info = L.value;
float db = Math::linear_to_db(track_info.use_blend ? track_info.volume : 1.0);
LocalVector<int> erase_streams;
HashMap<int, PlayingAudioStreamInfo> &map = track_info.stream_info;
AHashMap<int, PlayingAudioStreamInfo> &map = track_info.stream_info;
for (const KeyValue<int, PlayingAudioStreamInfo> &M : map) {
PlayingAudioStreamInfo pasi = M.value;
@ -2134,7 +2158,7 @@ void AnimationMixer::restore(const Ref<AnimatedValuesBackup> &p_backup) {
ERR_FAIL_COND(p_backup.is_null());
track_cache = p_backup->get_data();
_blend_apply();
track_cache = HashMap<Animation::TypeHash, AnimationMixer::TrackCache *>();
track_cache = AHashMap<Animation::TypeHash, AnimationMixer::TrackCache *, HashHasher>();
cache_valid = false;
}
@ -2370,7 +2394,7 @@ AnimationMixer::AnimationMixer() {
AnimationMixer::~AnimationMixer() {
}
void AnimatedValuesBackup::set_data(const HashMap<Animation::TypeHash, AnimationMixer::TrackCache *> p_data) {
void AnimatedValuesBackup::set_data(const AHashMap<Animation::TypeHash, AnimationMixer::TrackCache *, HashHasher> p_data) {
clear_data();
for (const KeyValue<Animation::TypeHash, AnimationMixer::TrackCache *> &E : p_data) {
@ -2383,7 +2407,7 @@ void AnimatedValuesBackup::set_data(const HashMap<Animation::TypeHash, Animation
}
}
HashMap<Animation::TypeHash, AnimationMixer::TrackCache *> AnimatedValuesBackup::get_data() const {
AHashMap<Animation::TypeHash, AnimationMixer::TrackCache *, HashHasher> AnimatedValuesBackup::get_data() const {
HashMap<Animation::TypeHash, AnimationMixer::TrackCache *> ret;
for (const KeyValue<Animation::TypeHash, AnimationMixer::TrackCache *> &E : data) {
AnimationMixer::TrackCache *track = get_cache_copy(E.value);

21
scene/animation/animation_mixer.h
View File

@ -31,6 +31,7 @@
#ifndef ANIMATION_MIXER_H
#define ANIMATION_MIXER_H
#include "core/templates/a_hash_map.h"
#include "scene/animation/tween.h"
#include "scene/main/node.h"
#include "scene/resources/animation.h"
@ -102,7 +103,7 @@ public:
protected:
/* ---- Data lists ---- */
LocalVector<AnimationLibraryData> animation_libraries;
HashMap<StringName, AnimationData> animation_set; // HashMap<Library name + Animation name, AnimationData>
AHashMap<StringName, AnimationData> animation_set; // HashMap<Library name + Animation name, AnimationData>
TypedArray<StringName> _get_animation_library_list() const;
Vector<String> _get_animation_list() const {
@ -148,6 +149,7 @@ protected:
uint64_t setup_pass = 0;
Animation::TrackType type = Animation::TrackType::TYPE_ANIMATION;
NodePath path;
int blend_idx = -1;
ObjectID object_id;
real_t total_weight = 0.0;
@ -269,7 +271,7 @@ protected:
// Audio track information for mixng and ending.
struct PlayingAudioTrackInfo {
HashMap<int, PlayingAudioStreamInfo> stream_info;
AHashMap<int, PlayingAudioStreamInfo> stream_info;
double length = 0.0;
double time = 0.0;
real_t volume = 0.0;
@ -308,7 +310,8 @@ protected:
};
RootMotionCache root_motion_cache;
HashMap<Animation::TypeHash, TrackCache *> track_cache;
AHashMap<Animation::TypeHash, TrackCache *, HashHasher> track_cache;
AHashMap<Ref<Animation>, LocalVector<TrackCache *>> animation_track_num_to_track_cashe;
HashSet<TrackCache *> playing_caches;
Vector<Node *> playing_audio_stream_players;
@ -324,7 +327,7 @@ protected:
/* ---- Blending processor ---- */
LocalVector<AnimationInstance> animation_instances;
HashMap<NodePath, int> track_map;
AHashMap<NodePath, int> track_map;
int track_count = 0;
bool deterministic = false;
@ -359,12 +362,12 @@ protected:
virtual void _process_animation(double p_delta, bool p_update_only = false);
// For post process with retrieved key value during blending.
virtual Variant _post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant p_value, ObjectID p_object_id, int p_object_sub_idx = -1);
virtual Variant _post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant &p_value, ObjectID p_object_id, int p_object_sub_idx = -1);
Variant post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant p_value, ObjectID p_object_id, int p_object_sub_idx = -1);
GDVIRTUAL5RC(Variant, _post_process_key_value, Ref<Animation>, int, Variant, ObjectID, int);
void _blend_init();
virtual bool _blend_pre_process(double p_delta, int p_track_count, const HashMap<NodePath, int> &p_track_map);
virtual bool _blend_pre_process(double p_delta, int p_track_count, const AHashMap<NodePath, int> &p_track_map);
virtual void _blend_capture(double p_delta);
void _blend_calc_total_weight(); // For undeterministic blending.
void _blend_process(double p_delta, bool p_update_only = false);
@ -485,11 +488,11 @@ public:
class AnimatedValuesBackup : public RefCounted {
GDCLASS(AnimatedValuesBackup, RefCounted);
HashMap<Animation::TypeHash, AnimationMixer::TrackCache *> data;
AHashMap<Animation::TypeHash, AnimationMixer::TrackCache *, HashHasher> data;
public:
void set_data(const HashMap<Animation::TypeHash, AnimationMixer::TrackCache *> p_data);
HashMap<Animation::TypeHash, AnimationMixer::TrackCache *> get_data() const;
void set_data(const AHashMap<Animation::TypeHash, AnimationMixer::TrackCache *, HashHasher> p_data);
AHashMap<Animation::TypeHash, AnimationMixer::TrackCache *, HashHasher> get_data() const;
void clear_data();
AnimationMixer::TrackCache *get_cache_copy(AnimationMixer::TrackCache *p_cache) const;

2
scene/animation/animation_node_state_machine.cpp
View File

@ -1619,7 +1619,7 @@ AnimationNode::NodeTimeInfo AnimationNodeStateMachine::_process(const AnimationM
playback_new = playback_new->duplicate(); // Don't process original when testing.
}
return playback_new->process(node_state.base_path, this, p_playback_info, p_test_only);
return playback_new->process(node_state.get_base_path(), this, p_playback_info, p_test_only);
}
String AnimationNodeStateMachine::get_caption() const {

4
scene/animation/animation_player.cpp
View File

@ -133,7 +133,7 @@ void AnimationPlayer::_get_property_list(List<PropertyInfo> *p_list) const {
List<PropertyInfo> anim_names;
for (const KeyValue<StringName, AnimationData> &E : animation_set) {
HashMap<StringName, StringName>::ConstIterator F = animation_next_set.find(E.key);
AHashMap<StringName, StringName>::ConstIterator F = animation_next_set.find(E.key);
if (F && F->value != StringName()) {
anim_names.push_back(PropertyInfo(Variant::STRING, "next/" + String(E.key), PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
}
@ -299,7 +299,7 @@ void AnimationPlayer::_blend_playback_data(double p_delta, bool p_started) {
}
}
bool AnimationPlayer::_blend_pre_process(double p_delta, int p_track_count, const HashMap<NodePath, int> &p_track_map) {
bool AnimationPlayer::_blend_pre_process(double p_delta, int p_track_count, const AHashMap<NodePath, int> &p_track_map) {
if (!playback.current.from) {
_set_process(false);
return false;

4
scene/animation/animation_player.h
View File

@ -52,7 +52,7 @@ public:
#endif // DISABLE_DEPRECATED
private:
HashMap<StringName, StringName> animation_next_set; // For auto advance.
AHashMap<StringName, StringName> animation_next_set; // For auto advance.
float speed_scale = 1.0;
double default_blend_time = 0.0;
@ -138,7 +138,7 @@ protected:
static void _bind_methods();
// Make animation instances.
virtual bool _blend_pre_process(double p_delta, int p_track_count, const HashMap<NodePath, int> &p_track_map) override;
virtual bool _blend_pre_process(double p_delta, int p_track_count, const AHashMap<NodePath, int> &p_track_map) override;
virtual void _blend_capture(double p_delta) override;
virtual void _blend_post_process() override;

32
scene/animation/animation_tree.cpp
View File

@ -75,20 +75,34 @@ void AnimationNode::set_parameter(const StringName &p_name, const Variant &p_val
if (process_state->is_testing) {
return;
}
const AHashMap<StringName, int>::Iterator it = property_cache.find(p_name);
if (it) {
process_state->tree->property_map.get_by_index(it->value).value.first = p_value;
return;
}
ERR_FAIL_COND(!process_state->tree->property_parent_map.has(node_state.base_path));
ERR_FAIL_COND(!process_state->tree->property_parent_map[node_state.base_path].has(p_name));
StringName path = process_state->tree->property_parent_map[node_state.base_path][p_name];
process_state->tree->property_map[path].first = p_value;
int idx = process_state->tree->property_map.get_index(path);
property_cache.insert_new(p_name, idx);
process_state->tree->property_map.get_by_index(idx).value.first = p_value;
}
Variant AnimationNode::get_parameter(const StringName &p_name) const {
ERR_FAIL_NULL_V(process_state, Variant());
const AHashMap<StringName, int>::ConstIterator it = property_cache.find(p_name);
if (it) {
return process_state->tree->property_map.get_by_index(it->value).value.first;
}
ERR_FAIL_COND_V(!process_state->tree->property_parent_map.has(node_state.base_path), Variant());
ERR_FAIL_COND_V(!process_state->tree->property_parent_map[node_state.base_path].has(p_name), Variant());
StringName path = process_state->tree->property_parent_map[node_state.base_path][p_name];
return process_state->tree->property_map[path].first;
int idx = process_state->tree->property_map.get_index(path);
property_cache.insert_new(p_name, idx);
return process_state->tree->property_map.get_by_index(idx).value.first;
}
void AnimationNode::set_node_time_info(const NodeTimeInfo &p_node_time_info) {
@ -203,7 +217,7 @@ AnimationNode::NodeTimeInfo AnimationNode::_blend_node(Ref<AnimationNode> p_node
}
for (const KeyValue<NodePath, bool> &E : filter) {
const HashMap<NodePath, int> &map = *process_state->track_map;
const AHashMap<NodePath, int> &map = *process_state->track_map;
if (!map.has(E.key)) {
continue;
}
@ -292,7 +306,7 @@ AnimationNode::NodeTimeInfo AnimationNode::_blend_node(Ref<AnimationNode> p_node
// This process, which depends on p_sync is needed to process sync correctly in the case of
// that a synced AnimationNodeSync exists under the un-synced AnimationNodeSync.
p_node->node_state.base_path = new_path;
p_node->set_node_state_base_path(new_path);
p_node->node_state.parent = new_parent;
if (!p_playback_info.seeked && !p_sync && !any_valid) {
p_playback_info.delta = 0.0;
@ -603,7 +617,7 @@ Ref<AnimationRootNode> AnimationTree::get_root_animation_node() const {
return root_animation_node;
}
bool AnimationTree::_blend_pre_process(double p_delta, int p_track_count, const HashMap<NodePath, int> &p_track_map) {
bool AnimationTree::_blend_pre_process(double p_delta, int p_track_count, const AHashMap<NodePath, int> &p_track_map) {
_update_properties(); // If properties need updating, update them.
if (!root_animation_node.is_valid()) {
@ -627,7 +641,7 @@ bool AnimationTree::_blend_pre_process(double p_delta, int p_track_count, const
for (int i = 0; i < p_track_count; i++) {
src_blendsw[i] = 1.0; // By default all go to 1 for the root input.
}
root_animation_node->node_state.base_path = SNAME(Animation::PARAMETERS_BASE_PATH.ascii().get_data());
root_animation_node->set_node_state_base_path(SNAME(Animation::PARAMETERS_BASE_PATH.ascii().get_data()));
root_animation_node->node_state.parent = nullptr;
}
@ -732,7 +746,7 @@ void AnimationTree::_animation_node_removed(const ObjectID &p_oid, const StringN
void AnimationTree::_update_properties_for_node(const String &p_base_path, Ref<AnimationNode> p_node) {
ERR_FAIL_COND(p_node.is_null());
if (!property_parent_map.has(p_base_path)) {
property_parent_map[p_base_path] = HashMap<StringName, StringName>();
property_parent_map[p_base_path] = AHashMap<StringName, StringName>();
}
if (!property_reference_map.has(p_node->get_instance_id())) {
property_reference_map[p_node->get_instance_id()] = p_base_path;
@ -767,7 +781,7 @@ void AnimationTree::_update_properties_for_node(const String &p_base_path, Ref<A
pinfo.name = p_base_path + key;
properties.push_back(pinfo);
}
p_node->make_cache_dirty();
List<AnimationNode::ChildNode> children;
p_node->get_child_nodes(&children);

47
scene/animation/animation_tree.h
View File

@ -60,7 +60,7 @@ public:
bool closable = false;
Vector<Input> inputs;
HashMap<NodePath, bool> filter;
AHashMap<NodePath, bool> filter;
bool filter_enabled = false;
// To propagate information from upstream for use in estimation of playback progress.
@ -97,22 +97,57 @@ public:
// Temporary state for blending process which needs to be stored in each AnimationNodes.
struct NodeState {
friend AnimationNode;
private:
StringName base_path;
public:
AnimationNode *parent = nullptr;
Vector<StringName> connections;
Vector<real_t> track_weights;
const StringName get_base_path() const {
return base_path;
}
} node_state;
// Temporary state for blending process which needs to be started in the AnimationTree, pass through the AnimationNodes, and then return to the AnimationTree.
struct ProcessState {
AnimationTree *tree = nullptr;
const HashMap<NodePath, int> *track_map; // TODO: Is there a better way to manage filter/tracks?
const AHashMap<NodePath, int> *track_map; // TODO: Is there a better way to manage filter/tracks?
bool is_testing = false;
bool valid = false;
String invalid_reasons;
uint64_t last_pass = 0;
} *process_state = nullptr;
private:
mutable AHashMap<StringName, int> property_cache;
public:
void set_node_state_base_path(const StringName p_base_path) {
if (p_base_path != node_state.base_path) {
node_state.base_path = p_base_path;
make_cache_dirty();
}
}
void set_node_state_base_path(const String p_base_path) {
if (p_base_path != node_state.base_path) {
node_state.base_path = p_base_path;
make_cache_dirty();
}
}
const StringName get_node_state_base_path() const {
return node_state.get_base_path();
}
void make_cache_dirty() {
property_cache.clear();
}
Array _get_filters() const;
void _set_filters(const Array &p_filters);
friend class AnimationNodeBlendTree;
@ -250,9 +285,9 @@ private:
friend class AnimationNode;
List<PropertyInfo> properties;
HashMap<StringName, HashMap<StringName, StringName>> property_parent_map;
HashMap<ObjectID, StringName> property_reference_map;
HashMap<StringName, Pair<Variant, bool>> property_map; // Property value and read-only flag.
AHashMap<StringName, AHashMap<StringName, StringName>> property_parent_map;
AHashMap<ObjectID, StringName> property_reference_map;
AHashMap<StringName, Pair<Variant, bool>> property_map; // Property value and read-only flag.
bool properties_dirty = true;
@ -286,7 +321,7 @@ private:
virtual void _set_active(bool p_active) override;
// Make animation instances.
virtual bool _blend_pre_process(double p_delta, int p_track_count, const HashMap<NodePath, int> &p_track_map) override;
virtual bool _blend_pre_process(double p_delta, int p_track_count, const AHashMap<NodePath, int> &p_track_map) override;
#ifndef DISABLE_DEPRECATED
void _set_process_callback_bind_compat_80813(AnimationProcessCallback p_mode);

295
tests/core/templates/test_a_hash_map.h Normal file
View File

@ -0,0 +1,295 @@
/**************************************************************************/
/* test_a_hash_map.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef TEST_A_HASH_MAP_H
#define TEST_A_HASH_MAP_H
#include "core/templates/a_hash_map.h"
#include "tests/test_macros.h"
namespace TestAHashMap {
TEST_CASE("[AHashMap] Insert element") {
AHashMap<int, int> map;
AHashMap<int, int>::Iterator e = map.insert(42, 84);
CHECK(e);
CHECK(e->key == 42);
CHECK(e->value == 84);
CHECK(map[42] == 84);
CHECK(map.has(42));
CHECK(map.find(42));
}
TEST_CASE("[AHashMap] Overwrite element") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(42, 1234);
CHECK(map[42] == 1234);
}
TEST_CASE("[AHashMap] Erase via element") {
AHashMap<int, int> map;
AHashMap<int, int>::Iterator e = map.insert(42, 84);
map.remove(e);
CHECK(!map.has(42));
CHECK(!map.find(42));
}
TEST_CASE("[AHashMap] Erase via key") {
AHashMap<int, int> map;
map.insert(42, 84);
map.erase(42);
CHECK(!map.has(42));
CHECK(!map.find(42));
}
TEST_CASE("[AHashMap] Size") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(123, 84);
map.insert(123, 84);
map.insert(0, 84);
map.insert(123485, 84);
CHECK(map.size() == 4);
}
TEST_CASE("[AHashMap] Iteration") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(123, 12385);
map.insert(0, 12934);
map.insert(123485, 1238888);
map.insert(123, 111111);
Vector<Pair<int, int>> expected;
expected.push_back(Pair<int, int>(42, 84));
expected.push_back(Pair<int, int>(123, 111111));
expected.push_back(Pair<int, int>(0, 12934));
expected.push_back(Pair<int, int>(123485, 1238888));
int idx = 0;
for (const KeyValue<int, int> &E : map) {
CHECK(expected[idx] == Pair<int, int>(E.key, E.value));
idx++;
}
idx--;
for (AHashMap<int, int>::Iterator it = map.last(); it; --it) {
CHECK(expected[idx] == Pair<int, int>(it->key, it->value));
idx--;
}
}
TEST_CASE("[AHashMap] Const iteration") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(123, 12385);
map.insert(0, 12934);
map.insert(123485, 1238888);
map.insert(123, 111111);
const AHashMap<int, int> const_map = map;
Vector<Pair<int, int>> expected;
expected.push_back(Pair<int, int>(42, 84));
expected.push_back(Pair<int, int>(123, 111111));
expected.push_back(Pair<int, int>(0, 12934));
expected.push_back(Pair<int, int>(123485, 1238888));
expected.push_back(Pair<int, int>(123, 111111));
int idx = 0;
for (const KeyValue<int, int> &E : const_map) {
CHECK(expected[idx] == Pair<int, int>(E.key, E.value));
idx++;
}
idx--;
for (AHashMap<int, int>::ConstIterator it = const_map.last(); it; --it) {
CHECK(expected[idx] == Pair<int, int>(it->key, it->value));
idx--;
}
}
TEST_CASE("[AHashMap] Replace key") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(0, 12934);
CHECK(map.replace_key(0, 1));
CHECK(map.has(1));
CHECK(map[1] == 12934);
}
TEST_CASE("[AHashMap] Clear") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(123, 12385);
map.insert(0, 12934);
map.clear();
CHECK(!map.has(42));
CHECK(map.size() == 0);
CHECK(map.is_empty());
}
TEST_CASE("[AHashMap] Get") {
AHashMap<int, int> map;
map.insert(42, 84);
map.insert(123, 12385);
map.insert(0, 12934);
CHECK(map.get(123) == 12385);
map.get(123) = 10;
CHECK(map.get(123) == 10);
CHECK(*map.getptr(0) == 12934);
*map.getptr(0) = 1;
CHECK(*map.getptr(0) == 1);
CHECK(map.get(42) == 84);
CHECK(map.getptr(-10) == nullptr);
}
TEST_CASE("[AHashMap] Insert, iterate and remove many elements") {
const int elem_max = 1234;
AHashMap<int, int> map;
for (int i = 0; i < elem_max; i++) {
map.insert(i, i);
}
//insert order should have been kept
int idx = 0;
for (auto &K : map) {
CHECK(idx == K.key);
CHECK(idx == K.value);
CHECK(map.has(idx));
idx++;
}
Vector<int> elems_still_valid;
for (int i = 0; i < elem_max; i++) {
if ((i % 5) == 0) {
map.erase(i);
} else {
elems_still_valid.push_back(i);
}
}
CHECK(elems_still_valid.size() == map.size());
for (int i = 0; i < elems_still_valid.size(); i++) {
CHECK(map.has(elems_still_valid[i]));
}
}
TEST_CASE("[AHashMap] Insert, iterate and remove many strings") {
const int elem_max = 432;
AHashMap<String, String> map;
for (int i = 0; i < elem_max; i++) {
map.insert(itos(i), itos(i));
}
//insert order should have been kept
int idx = 0;
for (auto &K : map) {
CHECK(itos(idx) == K.key);
CHECK(itos(idx) == K.value);
CHECK(map.has(itos(idx)));
idx++;
}
Vector<String> elems_still_valid;
for (int i = 0; i < elem_max; i++) {
if ((i % 5) == 0) {
map.erase(itos(i));
} else {
elems_still_valid.push_back(itos(i));
}
}
CHECK(elems_still_valid.size() == map.size());
for (int i = 0; i < elems_still_valid.size(); i++) {
CHECK(map.has(elems_still_valid[i]));
}
elems_still_valid.clear();
}
TEST_CASE("[AHashMap] Copy constructor") {
AHashMap<int, int> map0;
const uint32_t count = 5;
for (uint32_t i = 0; i < count; i++) {
map0.insert(i, i);
}
AHashMap<int, int> map1(map0);
CHECK(map0.size() == map1.size());
CHECK(map0.get_capacity() == map1.get_capacity());
CHECK(*map0.getptr(0) == *map1.getptr(0));
}
TEST_CASE("[AHashMap] Operator =") {
AHashMap<int, int> map0;
AHashMap<int, int> map1;
const uint32_t count = 5;
map1.insert(1234, 1234);
for (uint32_t i = 0; i < count; i++) {
map0.insert(i, i);
}
map1 = map0;
CHECK(map0.size() == map1.size());
CHECK(map0.get_capacity() == map1.get_capacity());
CHECK(*map0.getptr(0) == *map1.getptr(0));
}
TEST_CASE("[AHashMap] Array methods") {
AHashMap<int, int> map;
for (int i = 0; i < 100; i++) {
map.insert(100 - i, i);
}
for (int i = 0; i < 100; i++) {
CHECK(map.get_by_index(i).value == i);
}
int index = map.get_index(1);
CHECK(map.get_by_index(index).value == 99);
CHECK(map.erase_by_index(index));
CHECK(!map.erase_by_index(index));
CHECK(map.get_index(1) == -1);
}
} // namespace TestAHashMap
#endif // TEST_A_HASH_MAP_H

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tests/test_main.cpp
View File

@ -86,6 +86,7 @@
#include "tests/core/string/test_string.h"
#include "tests/core/string/test_translation.h"
#include "tests/core/string/test_translation_server.h"
#include "tests/core/templates/test_a_hash_map.h"
#include "tests/core/templates/test_command_queue.h"
#include "tests/core/templates/test_hash_map.h"
#include "tests/core/templates/test_hash_set.h"