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Remove private headers exposed by podspecs (facebook#940)
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Summary:
X-link: facebook/litho#940

Pull Request resolved: facebook#1252

X-link: facebook/react-native#36993

Fabric relies on the private C++ internals of Yoga. This creates a conundrum in the open source build due to how header creation in Cocoapods works.

1. The default mechanism of specifying public headers needs to include the private headers for them to be made usable by fabric (by default)
2. Cocoapods will roll up all of the public headers when importing a module

facebook/react-native#33381 fixed the Fabric Cocoapods build which ran into this. React Native relies on FlipperKit which relies on YogaKit, which in turn finally imports the Yoga podspec. Because YogaKit may use Swift, we can only expose the public Yoga C ABI.

The first solution in that PR was to allow RN to access Yoga private headers, but this was changed to instead make all Yoga headers public, and to add ifdefs to all of them to no-op when included outside of a C++ environment.

Talking to Kudo, we should be able to change back to the earlier approach in the PR, to instead expose the private headers to only RN. This lets us avoid exposing headers that we ideally wouldn't be, and lets us avoid the messy ifdefs in every Yoga header.

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D45139075

fbshipit-source-id: 99152986a578f7aac8324dffe0e18c42a38cc6a5
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NickGerleman authored and facebook-github-bot committed Apr 27, 2023
1 parent 292bbc4 commit fc68765
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Showing 12 changed files with 2 additions and 46 deletions.
4 changes: 2 additions & 2 deletions Yoga.podspec
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ Pod::Spec.new do |spec|
'-std=c++14',
'-fPIC'
]
spec.source_files = 'yoga/**/*.{c,h,cpp}'
spec.public_header_files = 'yoga/*.h'
spec.source_files = 'yoga/**/*.{h,cpp}'
spec.public_header_files = 'yoga/{Yoga,YGEnums,YGMacros,YGValue}.h'

end
4 changes: 0 additions & 4 deletions yoga/BitUtils.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include <cstdio>
#include <cstdint>
#include "YGEnums.h"
Expand Down Expand Up @@ -67,5 +65,3 @@ inline void setBooleanData(uint8_t& flags, size_t index, bool value) {
} // namespace detail
} // namespace yoga
} // namespace facebook

#endif
4 changes: 0 additions & 4 deletions yoga/CompactValue.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#if defined(__has_include) && __has_include(<version>)
// needed to be able to evaluate defined(__cpp_lib_bit_cast)
#include <version>
Expand Down Expand Up @@ -212,5 +210,3 @@ constexpr bool operator!=(CompactValue a, CompactValue b) noexcept {
} // namespace detail
} // namespace yoga
} // namespace facebook

#endif
4 changes: 0 additions & 4 deletions yoga/Utils.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include "YGNode.h"
#include "Yoga-internal.h"
#include "CompactValue.h"
Expand Down Expand Up @@ -146,5 +144,3 @@ inline YGFloatOptional YGResolveValueMargin(
const float ownerSize) {
return value.isAuto() ? YGFloatOptional{0} : YGResolveValue(value, ownerSize);
}

#endif
4 changes: 0 additions & 4 deletions yoga/YGConfig.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include "Yoga-internal.h"
#include "Yoga.h"

Expand Down Expand Up @@ -77,5 +75,3 @@ struct YOGA_EXPORT YGConfig {
setCloneNodeCallback(YGCloneNodeFunc{nullptr});
}
};

#endif
4 changes: 0 additions & 4 deletions yoga/YGFloatOptional.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include <cmath>
#include <limits>
#include "Yoga-internal.h"
Expand Down Expand Up @@ -70,5 +68,3 @@ inline bool operator>=(YGFloatOptional lhs, YGFloatOptional rhs) {
inline bool operator<=(YGFloatOptional lhs, YGFloatOptional rhs) {
return lhs < rhs || lhs == rhs;
}

#endif
4 changes: 0 additions & 4 deletions yoga/YGLayout.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include "BitUtils.h"
#include "YGFloatOptional.h"
#include "Yoga-internal.h"
Expand Down Expand Up @@ -63,5 +61,3 @@ struct YGLayout {
bool operator==(YGLayout layout) const;
bool operator!=(YGLayout layout) const { return !(*this == layout); }
};

#endif
4 changes: 0 additions & 4 deletions yoga/YGNode.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include <cstdint>
#include <stdio.h>
#include "CompactValue.h"
Expand Down Expand Up @@ -337,5 +335,3 @@ struct YOGA_EXPORT YGNode {
bool isNodeFlexible();
void reset();
};

#endif
4 changes: 0 additions & 4 deletions yoga/YGNodePrint.h
Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,6 @@

#pragma once

#ifdef __cplusplus

#include <string>

#include "Yoga.h"
Expand All @@ -28,5 +26,3 @@ void YGNodeToString(
} // namespace facebook

#endif

#endif
4 changes: 0 additions & 4 deletions yoga/YGStyle.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include <algorithm>
#include <array>
#include <cstdint>
Expand Down Expand Up @@ -237,5 +235,3 @@ YOGA_EXPORT bool operator==(const YGStyle& lhs, const YGStyle& rhs);
YOGA_EXPORT inline bool operator!=(const YGStyle& lhs, const YGStyle& rhs) {
return !(lhs == rhs);
}

#endif
4 changes: 0 additions & 4 deletions yoga/Yoga-internal.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include <algorithm>
#include <array>
#include <cmath>
Expand Down Expand Up @@ -154,5 +152,3 @@ static const float kDefaultFlexShrink = 0.0f;
static const float kWebDefaultFlexShrink = 1.0f;

extern bool YGFloatsEqual(const float a, const float b);

#endif
4 changes: 0 additions & 4 deletions yoga/log.h
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,6 @@

#pragma once

#ifdef __cplusplus

#include "YGEnums.h"

struct YGNode;
Expand Down Expand Up @@ -38,5 +36,3 @@ struct Log {
} // namespace detail
} // namespace yoga
} // namespace facebook

#endif

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