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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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12
modules/visual_script/editor/visual_script_editor.cpp
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@ -1608,7 +1608,7 @@ void VisualScriptEditor::_remove_output_port(int p_id, int p_port) {
if (E.from_node == p_id && E.from_port == p_port) {
// Push into the connections map.
if (!conn_map.has(E.to_node)) {
conn_map.set(E.to_node, Set<int>());
conn_map.insert(E.to_node, Set<int>());
}
conn_map[E.to_node].insert(E.to_port);
}
@ -1617,11 +1617,9 @@ void VisualScriptEditor::_remove_output_port(int p_id, int p_port) {
undo_redo->add_do_method(vsn.ptr(), "remove_output_data_port", p_port);
undo_redo->add_do_method(this, "_update_graph", p_id);
List<int> keys;
conn_map.get_key_list(&keys);
for (const int &E : keys) {
for (const Set<int>::Element *F = conn_map[E].front(); F; F = F->next()) {
undo_redo->add_undo_method(script.ptr(), "data_connect", p_id, p_port, E, F->get());
for (const KeyValue<int, Set<int>> &E : conn_map) {
for (const Set<int>::Element *F = E.value.front(); F; F = F->next()) {
undo_redo->add_undo_method(script.ptr(), "data_connect", p_id, p_port, E.key, F->get());
}
}
@ -1912,7 +1910,7 @@ void VisualScriptEditor::_on_nodes_duplicate() {
Ref<VisualScriptNode> dupe = node->duplicate(true);
int new_id = idc++;
remap.set(F->get(), new_id);
remap.insert(F->get(), new_id);
to_select.insert(new_id);
undo_redo->add_do_method(script.ptr(), "add_node", new_id, dupe, script->get_node_position(F->get()) + Vector2(20, 20));