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Add a new HashMap implementation

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Adds a new, cleaned up, HashMap implementation.

* Uses Robin Hood Hashing (https://en.wikipedia.org/wiki/Hash_table#Robin_Hood_hashing).
* Keeps elements in a double linked list for simpler, ordered, iteration.
* Allows keeping iterators for later use in removal (Unlike Map<>, it does not do much
  for performance vs keeping the key, but helps replace old code).
* Uses a more modern C++ iterator API, deprecates the old one.
* Supports custom allocator (in case there is a wish to use a paged one).

This class aims to unify all the associative template usage and replace it by this one:
* Map<> (whereas key order does not matter, which is 99% of cases)
* HashMap<>
* OrderedHashMap<>
* OAHashMap<>
This commit is contained in:
reduz
2022-05-08 10:09:19 +02:00
committed by Rémi Verschelde
parent 9b7e16a6b8
commit 8b7c7f5a75
95 changed files with 1434 additions and 1874 deletions
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41
modules/mono/class_db_api_json.cpp
View File

@@ -40,17 +40,12 @@
void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
Dictionary classes_dict;
List<StringName> names;
List<StringName> class_list;
ClassDB::get_class_list(&class_list);
// Must be alphabetically sorted for hash to compute.
class_list.sort_custom<StringName::AlphCompare>();
const StringName *k = nullptr;
while ((k = ClassDB::classes.next(k))) {
names.push_back(*k);
}
//must be alphabetically sorted for hash to compute
names.sort_custom<StringName::AlphCompare>();
for (const StringName &E : names) {
for (const StringName &E : class_list) {
ClassDB::ClassInfo *t = ClassDB::classes.getptr(E);
ERR_FAIL_COND(!t);
if (t->api != p_api || !t->exposed) {
@@ -66,10 +61,8 @@ void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
List<StringName> snames;
k = nullptr;
while ((k = t->method_map.next(k))) {
String name = k->operator String();
for (const KeyValue<StringName, MethodBind *> &F : t->method_map) {
String name = F.key.operator String();
ERR_CONTINUE(name.is_empty());
@@ -77,7 +70,7 @@ void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
continue; // Ignore non-virtual methods that start with an underscore
}
snames.push_back(*k);
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
@@ -131,10 +124,8 @@ void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
List<StringName> snames;
k = nullptr;
while ((k = t->constant_map.next(k))) {
snames.push_back(*k);
for (const KeyValue<StringName, int> &F : t->constant_map) {
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
@@ -158,10 +149,8 @@ void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
List<StringName> snames;
k = nullptr;
while ((k = t->signal_map.next(k))) {
snames.push_back(*k);
for (const KeyValue<StringName, MethodInfo> &F : t->signal_map) {
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
@@ -193,10 +182,8 @@ void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
List<StringName> snames;
k = nullptr;
while ((k = t->property_setget.next(k))) {
snames.push_back(*k);
for (const KeyValue<StringName, ClassDB::PropertySetGet> &F : t->property_setget) {
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();