283e3203f6
Summary: X-link: https://github.com/facebook/react-native/pull/41293 Pull Request resolved: https://github.com/facebook/yoga/pull/1446 NickGerleman pointed out that my recent changes to fix the slew of row-reverse problems in Yoga actually ended up regressing some parts. Specifically, absolute children of row-reverse containers would have their insets set to the wrong side. So if you set left: 10 it would apply it to the right. Turns out, in `layoutAbsoluteChild` there were cases where we were applying inlineStart/End values to the flexStart/End edge, which can never be right. So I changed the values to also be flexStart/End as the fix here. Reviewed By: NickGerleman Differential Revision: D50945475 fbshipit-source-id: 290de06dcc04e8e644a3a32c127af12fdabb2f75
yoga-layout
This package provides prebuilt WebAssembly bindings for the Yoga layout engine.
Usage
import {Yoga, Align} from 'yoga-layout';
const node = Yoga.Node.create();
node.setAlignContent(Align.Center);
Objects created by Yoga.<>.create() are not automatically garbage collected and should be freed once they are no longer in use.
// Free a config
config.free();
// Free a tree of Nodes
node.freeRecursive();
// Free a single Node
node.free();
Using TypeScript
This package provides out-of-the-box TypeScript typings so long as tsc is configured to support ESM resolution. It is recommended to set moduleResolution: 'bundler' or moduleResolution: node16 in your tsconfig.json according to your environment.
ES Modules
yoga-layout is only provided as an ES Module, relying on top-level await. This allows providing a synchronous API, while still allowing async WebAssembly compilation in browsers, and will allow eventual usage of ESM/WASM interop.
Contributing
Requirements
- Emscripten SDK
- CMake >= 3.13
- (Optional) ninja, for faster builds
Building
git clone https://github.com/facebook/yoga.git
cd yoga/javascript
yarn install
yarn build
Testing
# Build and test all entrypoints
yarn test
# Build and test a specific entrypoint
yarn test:asmjs-sync