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Add a new HashMap implementation

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

View File

@@ -48,11 +48,11 @@
namespace GDScriptTests {
void init_autoloads() {
OrderedHashMap<StringName, ProjectSettings::AutoloadInfo> autoloads = ProjectSettings::get_singleton()->get_autoload_list();
HashMap<StringName, ProjectSettings::AutoloadInfo> autoloads = ProjectSettings::get_singleton()->get_autoload_list();
// First pass, add the constants so they exist before any script is loaded.
for (OrderedHashMap<StringName, ProjectSettings::AutoloadInfo>::Element E = autoloads.front(); E; E = E.next()) {
const ProjectSettings::AutoloadInfo &info = E.get();
for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : ProjectSettings::get_singleton()->get_autoload_list()) {
const ProjectSettings::AutoloadInfo &info = E.value;
if (info.is_singleton) {
for (int i = 0; i < ScriptServer::get_language_count(); i++) {
@@ -62,8 +62,8 @@ void init_autoloads() {
}
// Second pass, load into global constants.
for (OrderedHashMap<StringName, ProjectSettings::AutoloadInfo>::Element E = autoloads.front(); E; E = E.next()) {
const ProjectSettings::AutoloadInfo &info = E.get();
for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : ProjectSettings::get_singleton()->get_autoload_list()) {
const ProjectSettings::AutoloadInfo &info = E.value;
if (!info.is_singleton) {
// Skip non-singletons since we don't have a scene tree here anyway.