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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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40
core/string/translation_po.cpp
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@@ -70,21 +70,14 @@ Dictionary TranslationPO::_get_messages() const {
Dictionary d;
List<StringName> context_l;
translation_map.get_key_list(&context_l);
for (const StringName &ctx : context_l) {
const HashMap<StringName, Vector<StringName>> &id_str_map = translation_map[ctx];
for (const KeyValue<StringName, HashMap<StringName, Vector<StringName>>> &E : translation_map) {
Dictionary d2;
List<StringName> id_l;
id_str_map.get_key_list(&id_l);
// Save list of id and strs associated with a context in a temporary dictionary.
for (List<StringName>::Element *E2 = id_l.front(); E2; E2 = E2->next()) {
StringName id = E2->get();
d2[id] = id_str_map[id];
for (const KeyValue<StringName, Vector<StringName>> &E2 : E.value) {
d2[E2.key] = E2.value;
}
d[ctx] = d2;
d[E.key] = d2;
}
return d;
@@ -274,31 +267,24 @@ void TranslationPO::get_message_list(List<StringName> *r_messages) const {
// OptimizedTranslation uses this function to get the list of msgid.
// Return all the keys of translation_map under "" context.
List<StringName> context_l;
translation_map.get_key_list(&context_l);
for (const StringName &E : context_l) {
if (String(E) != "") {
for (const KeyValue<StringName, HashMap<StringName, Vector<StringName>>> &E : translation_map) {
if (E.key != StringName()) {
continue;
}
List<StringName> msgid_l;
translation_map[E].get_key_list(&msgid_l);
for (List<StringName>::Element *E2 = msgid_l.front(); E2; E2 = E2->next()) {
r_messages->push_back(E2->get());
for (const KeyValue<StringName, Vector<StringName>> &E2 : E.value) {
r_messages->push_back(E2.key);
}
}
}
int TranslationPO::get_message_count() const {
List<StringName> context_l;
translation_map.get_key_list(&context_l);
int count = 0;
for (const StringName &E : context_l) {
count += translation_map[E].size();
for (const KeyValue<StringName, HashMap<StringName, Vector<StringName>>> &E : translation_map) {
count += E.value.size();
}
return count;
}