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Reduce unnecessary COW on Vector by make writing explicit

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

View File

@@ -357,8 +357,8 @@ void OS_Android::process_touch(int p_what, int p_pointer, const Vector<TouchPos>
touch.resize(p_points.size());
for (int i = 0; i < p_points.size(); i++) {
touch[i].id = p_points[i].id;
touch[i].pos = p_points[i].pos;
touch.write[i].id = p_points[i].id;
touch.write[i].pos = p_points[i].pos;
}
//send touch
@@ -399,7 +399,7 @@ void OS_Android::process_touch(int p_what, int p_pointer, const Vector<TouchPos>
ev->set_position(p_points[idx].pos);
ev->set_relative(p_points[idx].pos - touch[i].pos);
input->parse_input_event(ev);
touch[i].pos = p_points[idx].pos;
touch.write[i].pos = p_points[idx].pos;
}
} break;