gecko-dev/gfx/2d/StackArray.h
Jean-Yves Avenard 11ac9e9cf8 Bug 1540581 - P6. Tidy some C++ declarations in gfx/. r=gerald,jrmuizel
* Remove redundant virtual keywords
* Mark all destructors of inheriting classes as virtual for clarity
* Mark all classes without virtual destructor as final (exposed errors)
* Make destructor virtual where it needed to be (some were missing)
* Replace empty ({}) code declaration in header with = default
* Remove virtual unused methods

I probably missed some, it quickly became a rabbit hole.

Differential Revision: https://phabricator.services.mozilla.com/D26060

--HG--
extra : moz-landing-system : lando
2019-04-11 12:36:51 +00:00

34 lines
959 B
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* A handy class that will allocate data for size*T objects on the stack and
* otherwise allocate them on the heap. It is similar in purpose to AutoTArray
*/
template <class T, size_t size>
class StackArray final {
public:
explicit StackArray(size_t count) {
if (count > size) {
mData = new T[count];
} else {
mData = mStackData;
}
}
~StackArray() {
if (mData != mStackData) {
delete[] mData;
}
}
T& operator[](size_t n) { return mData[n]; }
const T& operator[](size_t n) const { return mData[n]; }
T* data() { return mData; };
private:
T mStackData[size];
T* mData;
};