Files
yoga/yoga/YGLayout.h
Rain ⁣ a4bdd9cd9b standardize C-like MIT copyright headers throughout fbsource
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
2019-06-06 19:44:16 -07:00

49 lines
1.5 KiB
C++

/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the LICENSE
* file in the root directory of this source tree.
*/
#pragma once
#include "YGFloatOptional.h"
#include "Yoga-internal.h"
constexpr std::array<float, 2> kYGDefaultDimensionValues = {
{YGUndefined, YGUndefined}};
struct YGLayout {
std::array<float, 4> position = {};
std::array<float, 2> dimensions = kYGDefaultDimensionValues;
std::array<float, 4> margin = {};
std::array<float, 4> border = {};
std::array<float, 4> padding = {};
YGDirection direction : 2;
bool didUseLegacyFlag : 1;
bool doesLegacyStretchFlagAffectsLayout : 1;
bool hadOverflow : 1;
uint32_t computedFlexBasisGeneration = 0;
YGFloatOptional computedFlexBasis = {};
// Instead of recomputing the entire layout every single time, we cache some
// information to break early when nothing changed
uint32_t generationCount = 0;
YGDirection lastOwnerDirection = (YGDirection) -1;
uint32_t nextCachedMeasurementsIndex = 0;
std::array<YGCachedMeasurement, YG_MAX_CACHED_RESULT_COUNT>
cachedMeasurements = {};
std::array<float, 2> measuredDimensions = kYGDefaultDimensionValues;
YGCachedMeasurement cachedLayout = YGCachedMeasurement();
YGLayout()
: direction(YGDirectionInherit),
didUseLegacyFlag(false),
doesLegacyStretchFlagAffectsLayout(false),
hadOverflow(false) {}
bool operator==(YGLayout layout) const;
bool operator!=(YGLayout layout) const { return !(*this == layout); }
};