Merge 9bb107d7f4 into 1a905cbd4f

In optimized builds (such as -O2) GCC emits "maybe-uninitialized" warning for QSharedPointer<T>::d. This happens only for optimized builds because that is when GCC tracks lifetimes[1]. In a project with lots of QtPromise uses this produces a heap of bogus warnings. This warning has been previously reported to a Qt team, but they're confident it is a compiler bug[2][3]. However, this is a second time and issue raised with QSharedPointer and warnings to it. The first time it was addressed here: https://github.com/simonbrunel/qtpromise/pull/34.

[1] https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wmaybe-uninitialized
[2] https://bugreports.qt.io/browse/QTBUG-14637
[3] https://bugreports.qt.io/browse/QTBUG-77641

.github/workflows/ci.yaml

@@ -0,0 +1,43 @@
+# https://docs.github.com/actions/reference/workflow-syntax-for-github-actions
+# https://doc.qt.io/qt-6/supported-platforms.html
+# https://ddalcino.github.io/aqt-list-server/
+
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        qt:
+          - 5.9.9
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jurplel/install-qt-action@v4
+        with:
+          version: ${{ matrix.qt }}
+          archives: qtbase icu
+          tools: tools_cmake
+          arch: gcc_64
+          host: linux
+      - run: |
+          qmake --version
+          cmake --version
+          gcc --version
+          g++ --version
+      - run: |
+          cmake -G "Unix Makefiles"
+          cmake --build . -- -j12
+          cmake --build . --target test
+      - run: |
+          sudo apt-get install lcov > /dev/null
+          lcov --version
+          lcov --capture --directory . -o coverage.info
+          lcov -e coverage.info '**/src/**/*' -o coverage.info
+      - uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          files: coverage.info

.travis.yml

@@ -1,38 +0,0 @@
-sudo: required
-dist: xenial
-language: cpp
-compiler: gcc
-
-before_install:
-  - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
-  - sudo add-apt-repository -y ppa:beineri/opt-qt563-xenial
-  - sudo apt-get update -qq
-
-install:
-  - sudo apt-get install -qq gcc-4.9 g++-4.9
-  - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 90
-  - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.9 90
-  - sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-4.9 90
-  - sudo apt-get install -qq qt56base
-  - source /opt/qt56/bin/qt56-env.sh
-  - wget http://archive.ubuntu.com/ubuntu/pool/universe/l/lcov/lcov_1.13.orig.tar.gz
-  - tar xf lcov_1.13.orig.tar.gz
-  - cd lcov-1.13/
-  - sudo make install
-  - cd ..
-
-before_script:
-  - cmake --version
-  - qmake --version
-  - gcc --version && g++ --version
-  - lcov --version && gcov --version
-
-script:
-  - cmake -G "Unix Makefiles"
-  - cmake --build . -- -j12
-  - cmake --build . --target test
-  - lcov -capture --directory . --o coverage.info
-  - lcov -e coverage.info '**/src/**/*' -o coverage.info
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash) -f coverage.info

src/qtpromise/qpromise_p.h

@@ -20,6 +20,8 @@
 #include <QtCore/QVariant>
 #include <QtCore/QVector>
 
+#include <memory>
+
 namespace QtPromise {
 
 template<typename T>
@@ -92,13 +94,13 @@ class PromiseValue
 {
 public:
     PromiseValue() { }
-    PromiseValue(const T& data) : m_data(QSharedPointer<T>::create(data)) { }
-    PromiseValue(T&& data) : m_data(QSharedPointer<T>::create(std::forward<T>(data))) { }
-    bool isNull() const { return m_data.isNull(); }
+    PromiseValue(const T& data) : m_data(std::make_shared<T>(data)) { }
+    PromiseValue(T&& data) : m_data(std::make_shared<T>(std::forward<T>(data))) { }
+    bool isNull() const { return m_data == nullptr; }
     const T& data() const { return *m_data; }
 
 private:
-    QSharedPointer<T> m_data;
+    std::shared_ptr<T> m_data;
 };
 
 class PromiseError