Revert D48710084: C++ Cleanup 1/N: Reorganize YGStyle
Differential Revision: D48710084 Original commit changeset: 20961aee30d5 Original Phabricator Diff: D48710084 fbshipit-source-id: 79cda4f13979b8d0cdf87dabbfc13cbd17abe488
This commit is contained in:
Zhiyao Zhou
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Facebook GitHub Bot
Facebook GitHub Bot
parent
13c5ce2234
commit
2a32637c56
@@ -1,239 +0,0 @@
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/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <algorithm>
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#include <array>
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#include <cstdint>
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#include <type_traits>
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#include <yoga/Yoga.h>
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#include <yoga/YGFloatOptional.h>
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#include <yoga/Yoga-internal.h>
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#include <yoga/BitUtils.h>
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#include <yoga/style/CompactValue.h>
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namespace facebook::yoga {
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class YOGA_EXPORT Style {
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template <typename Enum>
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using Values = detail::Values<enums::count<Enum>()>;
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public:
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using Dimensions = Values<YGDimension>;
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using Edges = Values<YGEdge>;
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using Gutters = Values<YGGutter>;
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template <typename T>
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struct BitfieldRef {
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Style& style;
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size_t offset;
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operator T() const {
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return facebook::yoga::detail::getEnumData<T>(style.flags, offset);
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}
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BitfieldRef<T>& operator=(T x) {
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facebook::yoga::detail::setEnumData<T>(style.flags, offset, x);
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return *this;
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}
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};
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template <typename T, T Style::*Prop>
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struct Ref {
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Style& style;
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operator T() const { return style.*Prop; }
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Ref<T, Prop>& operator=(T value) {
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style.*Prop = value;
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return *this;
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}
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};
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template <typename Idx, Values<Idx> Style::*Prop>
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struct IdxRef {
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struct Ref {
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Style& style;
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Idx idx;
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operator CompactValue() const { return (style.*Prop)[idx]; }
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operator YGValue() const { return (style.*Prop)[idx]; }
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Ref& operator=(CompactValue value) {
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(style.*Prop)[idx] = value;
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return *this;
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}
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};
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Style& style;
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IdxRef<Idx, Prop>& operator=(const Values<Idx>& values) {
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style.*Prop = values;
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return *this;
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}
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operator const Values<Idx>&() const { return style.*Prop; }
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Ref operator[](Idx idx) { return {style, idx}; }
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CompactValue operator[](Idx idx) const { return (style.*Prop)[idx]; }
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};
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Style() {
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alignContent() = YGAlignFlexStart;
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alignItems() = YGAlignStretch;
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}
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~Style() = default;
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private:
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static constexpr size_t directionOffset = 0;
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static constexpr size_t flexdirectionOffset =
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directionOffset + facebook::yoga::detail::bitWidthFn<YGDirection>();
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static constexpr size_t justifyContentOffset = flexdirectionOffset +
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facebook::yoga::detail::bitWidthFn<YGFlexDirection>();
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static constexpr size_t alignContentOffset =
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justifyContentOffset + facebook::yoga::detail::bitWidthFn<YGJustify>();
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static constexpr size_t alignItemsOffset =
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alignContentOffset + facebook::yoga::detail::bitWidthFn<YGAlign>();
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static constexpr size_t alignSelfOffset =
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alignItemsOffset + facebook::yoga::detail::bitWidthFn<YGAlign>();
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static constexpr size_t positionTypeOffset =
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alignSelfOffset + facebook::yoga::detail::bitWidthFn<YGAlign>();
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static constexpr size_t flexWrapOffset =
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positionTypeOffset + facebook::yoga::detail::bitWidthFn<YGPositionType>();
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static constexpr size_t overflowOffset =
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flexWrapOffset + facebook::yoga::detail::bitWidthFn<YGWrap>();
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static constexpr size_t displayOffset =
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overflowOffset + facebook::yoga::detail::bitWidthFn<YGOverflow>();
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uint32_t flags = 0;
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YGFloatOptional flex_ = {};
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YGFloatOptional flexGrow_ = {};
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YGFloatOptional flexShrink_ = {};
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CompactValue flexBasis_ = CompactValue::ofAuto();
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Edges margin_ = {};
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Edges position_ = {};
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Edges padding_ = {};
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Edges border_ = {};
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Gutters gap_ = {};
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Dimensions dimensions_{CompactValue::ofAuto()};
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Dimensions minDimensions_ = {};
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Dimensions maxDimensions_ = {};
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// Yoga specific properties, not compatible with flexbox specification
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YGFloatOptional aspectRatio_ = {};
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public:
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// for library users needing a type
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using ValueRepr = std::remove_reference<decltype(margin_[0])>::type;
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YGDirection direction() const {
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return facebook::yoga::detail::getEnumData<YGDirection>(
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flags, directionOffset);
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}
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BitfieldRef<YGDirection> direction() { return {*this, directionOffset}; }
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YGFlexDirection flexDirection() const {
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return facebook::yoga::detail::getEnumData<YGFlexDirection>(
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flags, flexdirectionOffset);
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}
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BitfieldRef<YGFlexDirection> flexDirection() {
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return {*this, flexdirectionOffset};
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}
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YGJustify justifyContent() const {
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return facebook::yoga::detail::getEnumData<YGJustify>(
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flags, justifyContentOffset);
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}
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BitfieldRef<YGJustify> justifyContent() {
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return {*this, justifyContentOffset};
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}
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YGAlign alignContent() const {
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return facebook::yoga::detail::getEnumData<YGAlign>(
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flags, alignContentOffset);
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}
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BitfieldRef<YGAlign> alignContent() { return {*this, alignContentOffset}; }
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YGAlign alignItems() const {
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return facebook::yoga::detail::getEnumData<YGAlign>(
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flags, alignItemsOffset);
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}
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BitfieldRef<YGAlign> alignItems() { return {*this, alignItemsOffset}; }
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YGAlign alignSelf() const {
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return facebook::yoga::detail::getEnumData<YGAlign>(flags, alignSelfOffset);
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}
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BitfieldRef<YGAlign> alignSelf() { return {*this, alignSelfOffset}; }
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YGPositionType positionType() const {
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return facebook::yoga::detail::getEnumData<YGPositionType>(
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flags, positionTypeOffset);
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}
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BitfieldRef<YGPositionType> positionType() {
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return {*this, positionTypeOffset};
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}
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YGWrap flexWrap() const {
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return facebook::yoga::detail::getEnumData<YGWrap>(flags, flexWrapOffset);
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}
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BitfieldRef<YGWrap> flexWrap() { return {*this, flexWrapOffset}; }
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YGOverflow overflow() const {
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return facebook::yoga::detail::getEnumData<YGOverflow>(
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flags, overflowOffset);
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}
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BitfieldRef<YGOverflow> overflow() { return {*this, overflowOffset}; }
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YGDisplay display() const {
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return facebook::yoga::detail::getEnumData<YGDisplay>(flags, displayOffset);
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}
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BitfieldRef<YGDisplay> display() { return {*this, displayOffset}; }
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YGFloatOptional flex() const { return flex_; }
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Ref<YGFloatOptional, &Style::flex_> flex() { return {*this}; }
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YGFloatOptional flexGrow() const { return flexGrow_; }
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Ref<YGFloatOptional, &Style::flexGrow_> flexGrow() { return {*this}; }
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YGFloatOptional flexShrink() const { return flexShrink_; }
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Ref<YGFloatOptional, &Style::flexShrink_> flexShrink() { return {*this}; }
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CompactValue flexBasis() const { return flexBasis_; }
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Ref<CompactValue, &Style::flexBasis_> flexBasis() { return {*this}; }
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const Edges& margin() const { return margin_; }
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IdxRef<YGEdge, &Style::margin_> margin() { return {*this}; }
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const Edges& position() const { return position_; }
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IdxRef<YGEdge, &Style::position_> position() { return {*this}; }
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const Edges& padding() const { return padding_; }
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IdxRef<YGEdge, &Style::padding_> padding() { return {*this}; }
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const Edges& border() const { return border_; }
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IdxRef<YGEdge, &Style::border_> border() { return {*this}; }
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const Gutters& gap() const { return gap_; }
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IdxRef<YGGutter, &Style::gap_> gap() { return {*this}; }
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const Dimensions& dimensions() const { return dimensions_; }
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IdxRef<YGDimension, &Style::dimensions_> dimensions() { return {*this}; }
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const Dimensions& minDimensions() const { return minDimensions_; }
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IdxRef<YGDimension, &Style::minDimensions_> minDimensions() {
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return {*this};
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}
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const Dimensions& maxDimensions() const { return maxDimensions_; }
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IdxRef<YGDimension, &Style::maxDimensions_> maxDimensions() {
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return {*this};
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}
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// Yoga specific properties, not compatible with flexbox specification
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YGFloatOptional aspectRatio() const { return aspectRatio_; }
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Ref<YGFloatOptional, &Style::aspectRatio_> aspectRatio() { return {*this}; }
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};
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YOGA_EXPORT bool operator==(const Style& lhs, const Style& rhs);
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YOGA_EXPORT inline bool operator!=(const Style& lhs, const Style& rhs) {
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return !(lhs == rhs);
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}
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} // namespace facebook::yoga
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