Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1350
X-link: https://github.com/facebook/react-native/pull/39170
## This diff
This diff adds a top level `node` directory for code related to Yoga nodes and data structures on them (inc moving `YGLayout` to `LayoutResults`).
The public API for config handles is `YGNodeRef`, which is forward declared to be a pointer to a struct named `YGNode`. The existing `YGNode` is split into `yoga::Node`, as the private C++ implementation, inheriting from `YGNode`, a marker type represented as an empty struct. The public API continues to accept `YGNodeRef`, which continues to be `YGNode *`, but it must be cast to its concrete internal representation at the API boundary before doing work on it.
This change ends up needing to touch quite a bit, due to the amount of code that mixed and matched private and public APIs. Don't be scared though, because these changes are very mechanical, and Phabricator's line-count is 3x the actual amount due to mirrors and dirsyncs.
## This stack
The organization of the C++ internals of Yoga are in need of attention.
1. Some of the C++ internals are namespaced, but others not.
2. Some of the namespaces include `detail`, but are meant to be used outside of the translation unit (FB Clang Tidy rules warn on any usage of these)
2. Most of the files are in a flat hierarchy, except for event tracing in its own folder
3. Some files and functions begin with YG, others don’t
4. Some functions are uppercase, others are not
5. Almost all of the interesting logic is in Yoga.cpp, and the file is too large to reason about
6. There are multiple grab bag files where folks put random functions they need in (Utils, BitUtils, Yoga-Internal.h)
7. There is no clear indication from file structure or type naming what is private vs not
8. Handles like `YGNodeRef` and `YGConfigRef` can be used to access internals just by importing headers
This stack does some much needed spring cleaning:
1. All non-public headers and C++ implementation details are in separate folders from the root level `yoga`. This will give us room to split up logic and add more files without too large a flat hierarchy
3. All private C++ internals are under the `facebook::yoga` namespace. Details namespaces are only ever used within the same header, as they are intended
4. Utils files are split
5. Most C++ internals drop the YG prefix
6. Most C++ internal function names are all lower camel case
7. We start to split up Yoga.cpp
8. Every header beginning with YG or at the top-level directory is public and C only, with the exception of Yoga-Internal.h which has non-public functions for bindings
9. It is not possible to use private APIs without static casting handles to internal classes
This will give us more leeway to continue splitting monolithic files, and consistent guidelines for style in new files as well.
These changes should not be breaking to any project using only public Yoga headers. This includes every usage of Yoga in fbsource except for RN Fabric which is currently tied to internals. This refactor should make that boundary clearer.
Changelog: [Internal]
Reviewed By: rshest
Differential Revision: D48712710
fbshipit-source-id: d28eae38469afa24a8cb03e4e75eeb8e431173c5
Summary: This change applies all Arcanist recommended lint changes, which amounts to changing copyright headers and some cases of whitespace changes.
Reviewed By: yungsters
Differential Revision: D40060899
fbshipit-source-id: b62f9472e6ef58a3fc3d22eed661578a2635cb1f
Summary:
`/*` is the standard throughout open source code. For example, Firefox uses single /*: https://hg.mozilla.org/mozilla-central/file/21d22b2f541258d3d1cf96c7ba5ad73e96e616b5/gfx/ipc/CompositorWidgetVsyncObserver.cpp#l3
In addition, Rust considers `/**` to be a doc comment (similar to Javadoc) and having such a comment at the beginning of the file causes `rustc` to barf.
Note that some JavaScript tooling requires `/**`. This is OK since JavaScript files were not covered by the linter in the first place, but it would be good to have that tooling fixed too.
Reviewed By: zertosh
Differential Revision: D15640366
fbshipit-source-id: b4ed4599071516364d6109720750d6a43304c089
Summary: This change drops the year from the copyright headers and the LICENSE file.
Reviewed By: yungsters
Differential Revision: D9727774
fbshipit-source-id: df4fc1e4390733fe774b1a160dd41b4a3d83302a
Summary:
Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs.
find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$
replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree.
Reviewed By: TheSavior, yungsters
Differential Revision: D7007050
fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
