59fb251edc
Summary: Pull Request resolved: https://github.com/facebook/yoga/pull/1585 When used alone, yoga has no visibility over the USE_FRAMEWORKS variable set by React Native. In this case, there is no other way to know whether the current target that will install the spec is using use_framewors or not. As a failsafe, condition, let's always add the `"$(PODS_TARGET_SRCROOT)"` to the search paths to make sure that archiving won't fail. Whe used in other context, that should not be a problem: search paths are just directory Xcode uses to find headers that are needed. Reviewed By: NickGerleman Differential Revision: D54417386 fbshipit-source-id: aa2ae41c077e4346c0417c73291a37c992a06b58
Yoga 
Yoga is an embeddable and performant flexbox layout engine with bindings for multiple languages.
Building
Yoga's main implementation targets C++ 20 with accompanying build logic in CMake. A wrapper is provided to build the main library and run unit tests.
./unit_tests <Debug|Release>
While not required, this script will use ninja if it is installed for faster builds.
Yoga is additionally part of the vcpkg collection of ports maintained by Microsoft and community contributors. If the version is out of date, please create an issue or pull request on the vcpkg repository.
Adding Tests
Many of Yoga's tests are automatically generated, using HTML fixtures describing node structure. These are rendered in Chrome to generate an expected layout result for the tree. New fixtures can be added to gentest/fixtures.
<div id="my_test" style="width: 100px; height: 100px; align-items: center;">
<div style="width: 50px; height: 50px;"></div>
</div>
To generate new tests from added fixtures:
- Ensure you have yarn classic installed.
- Run
yarn installto install dependencies for the test generator. - Run
yarn gentestin theyogadirectory.
Debugging
Yoga provides a VSCode "launch.json" configuration which allows debugging unit tests. Simply add your breakpoints, and run "Debug C++ Unit tests (lldb)" (or "Debug C++ Unit tests (vsdbg)" on Windows).