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Reduce unnecessary COW on Vector by make writing explicit

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This commit makes operator[] on Vector const and adds a write proxy to it.  From
now on writes to Vectors need to happen through the .write proxy. So for
instance:

Vector<int> vec;
vec.push_back(10);
std::cout << vec[0] << std::endl;
vec.write[0] = 20;

Failing to use the .write proxy will cause a compilation error.

In addition COWable datatypes can now embed a CowData pointer to their data.
This means that String, CharString, and VMap no longer use or derive from
Vector.

_ALWAYS_INLINE_ and _FORCE_INLINE_ are now equivalent for debug and non-debug
builds. This is a lot faster for Vector in the editor and while running tests.
The reason why this difference used to exist is because force-inlined methods
used to give a bad debugging experience. After extensive testing with modern
compilers this is no longer the case.
This commit is contained in:
Hein-Pieter van Braam
2018-07-25 03:11:03 +02:00
parent 9423f23ffb
commit 0e29f7974b
228 changed files with 2200 additions and 2082 deletions
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4
editor/project_manager.cpp
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@@ -1781,8 +1781,8 @@ ProjectManager::ProjectManager() {
vb->add_constant_override("separation", 15 * EDSCALE);
String cp;
cp.push_back(0xA9);
cp.push_back(0);
cp += 0xA9;
cp += '0';
OS::get_singleton()->set_window_title(VERSION_NAME + String(" - ") + TTR("Project Manager") + " - " + cp + " 2007-2018 Juan Linietsky, Ariel Manzur & Godot Contributors");
HBoxContainer *top_hb = memnew(HBoxContainer);