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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
main/tests/test_physics.cpp
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@@ -228,11 +228,11 @@ protected:
for (int i = 0; i < p_width; i++) {
grid[i].resize(p_height);
grid.write[i].resize(p_height);
for (int j = 0; j < p_height; j++) {
grid[i][j] = 1.0 + Math::random(-p_cellheight, p_cellheight);
grid.write[i].write[j] = 1.0 + Math::random(-p_cellheight, p_cellheight);
}
}