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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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2
scene/3d/mesh_instance.cpp
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@ -257,7 +257,7 @@ void MeshInstance::set_surface_material(int p_surface, const Ref<Material> &p_ma
ERR_FAIL_INDEX(p_surface, materials.size());
materials[p_surface] = p_material;
materials.write[p_surface] = p_material;
if (materials[p_surface].is_valid())
VS::get_singleton()->instance_set_surface_material(get_instance(), p_surface, materials[p_surface]->get_rid());