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LibGC+LibJS+LibWeb: Add workaround for Swift boolean bitfield issue

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This patch adds a workaround for a Swift issue where boolean bitfields
with getters and setters in SWIFT_UNSAFE_REFERENCE types are improperly
imported, causing an ICE.
This commit is contained in:
Andrew Kaster 2025-03-22 18:58:04 -06:00
parent 6b65a5c8c4
commit bfa1aa6904
8 changed files with 60 additions and 43 deletions
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8
Libraries/LibGC/CMakeLists.txt
View file

@ -17,8 +17,12 @@ target_link_libraries(LibGC PRIVATE LibCore)
if (ENABLE_SWIFT)
generate_clang_module_map(LibGC)
target_sources(LibGC PRIVATE
Heap+Swift.swift
Heap+Swift.swift
)
target_link_libraries(LibGC PRIVATE AK)
add_swift_target_properties(LibGC LAGOM_LIBRARIES AK)
# FIXME: https://github.com/swiftlang/swift/issues/80182
target_compile_options(LibGC PUBLIC $<$<COMPILE_LANGUAGE:C,CXX>:-DLIBGC_WORKAROUND_BOOL_BITFIELD>
SHELL:$<$<COMPILE_LANGUAGE:Swift>:-Xcc -DLIBGC_WORKAROUND_BOOL_BITFIELD>)
add_swift_target_properties(LibGC LAGOM_LIBRARIES AK COMPILE_DEFINITIONS LIBGC_WORKAROUND_BOOL_BITFIELD)
endif()

18
Libraries/LibGC/Cell.h
View file

@ -12,6 +12,7 @@
#include <AK/HashMap.h>
#include <AK/Noncopyable.h>
#include <AK/StringView.h>
#include <AK/Swift.h>
#include <AK/Weakable.h>
#include <LibGC/Forward.h>
#include <LibGC/Internals.h>
@ -27,6 +28,13 @@ namespace GC {
# define IGNORE_GC
#endif
// https://github.com/swiftlang/swift/issues/80182
#if defined(LIBGC_WORKAROUND_BOOL_BITFIELD)
# define BOOL_BITFIELD
#else
# define BOOL_BITFIELD : 1
#endif
#define GC_CELL(class_, base_class) \
public: \
using Base = base_class; \
@ -163,7 +171,7 @@ public:
protected:
virtual void visit_impl(Cell&) = 0;
virtual ~Visitor() = default;
};
} SWIFT_UNSAFE_REFERENCE;
virtual void visit_edges(Visitor&) { }
@ -187,10 +195,10 @@ protected:
void set_overrides_must_survive_garbage_collection(bool b) { m_overrides_must_survive_garbage_collection = b; }
private:
bool m_mark { false };
bool m_overrides_must_survive_garbage_collection { false };
State m_state { State::Live };
};
bool m_mark BOOL_BITFIELD { false };
bool m_overrides_must_survive_garbage_collection BOOL_BITFIELD { false };
State m_state BOOL_BITFIELD { State::Live };
} SWIFT_UNSAFE_REFERENCE;
}

6
Libraries/LibJS/Runtime/Shape.h
View file

@ -142,9 +142,9 @@ private:
PropertyAttributes m_attributes { 0 };
TransitionType m_transition_type { TransitionType::Invalid };
bool m_dictionary : 1 { false };
bool m_cacheable : 1 { true };
bool m_is_prototype_shape : 1 { false };
bool m_dictionary BOOL_BITFIELD { false };
bool m_cacheable BOOL_BITFIELD { true };
bool m_is_prototype_shape BOOL_BITFIELD { false };
};
}

22
Libraries/LibWeb/Bindings/PlatformObject.h
View file

@ -49,17 +49,17 @@ protected:
explicit PlatformObject(JS::Object& prototype, MayInterfereWithIndexedPropertyAccess = MayInterfereWithIndexedPropertyAccess::No);
struct LegacyPlatformObjectFlags {
u16 supports_indexed_properties : 1 = false;
u16 supports_named_properties : 1 = false;
u16 has_indexed_property_setter : 1 = false;
u16 has_named_property_setter : 1 = false;
u16 has_named_property_deleter : 1 = false;
u16 has_legacy_unenumerable_named_properties_interface_extended_attribute : 1 = false;
u16 has_legacy_override_built_ins_interface_extended_attribute : 1 = false;
u16 has_global_interface_extended_attribute : 1 = false;
u16 indexed_property_setter_has_identifier : 1 = false;
u16 named_property_setter_has_identifier : 1 = false;
u16 named_property_deleter_has_identifier : 1 = false;
u16 supports_indexed_properties BOOL_BITFIELD = false;
u16 supports_named_properties BOOL_BITFIELD = false;
u16 has_indexed_property_setter BOOL_BITFIELD = false;
u16 has_named_property_setter BOOL_BITFIELD = false;
u16 has_named_property_deleter BOOL_BITFIELD = false;
u16 has_legacy_unenumerable_named_properties_interface_extended_attribute BOOL_BITFIELD = false;
u16 has_legacy_override_built_ins_interface_extended_attribute BOOL_BITFIELD = false;
u16 has_global_interface_extended_attribute BOOL_BITFIELD = false;
u16 indexed_property_setter_has_identifier BOOL_BITFIELD = false;
u16 named_property_setter_has_identifier BOOL_BITFIELD = false;
u16 named_property_deleter_has_identifier BOOL_BITFIELD = false;
};
Optional<LegacyPlatformObjectFlags> m_legacy_platform_object_flags = {};

8
Libraries/LibWeb/CSS/StyleInvalidation.h
View file

@ -11,10 +11,10 @@
namespace Web::CSS {
struct RequiredInvalidationAfterStyleChange {
bool repaint : 1 { false };
bool rebuild_stacking_context_tree : 1 { false };
bool relayout : 1 { false };
bool rebuild_layout_tree : 1 { false };
bool repaint BOOL_BITFIELD { false };
bool rebuild_stacking_context_tree BOOL_BITFIELD { false };
bool relayout BOOL_BITFIELD { false };
bool rebuild_layout_tree BOOL_BITFIELD { false };
void operator|=(RequiredInvalidationAfterStyleChange const& other)
{

20
Libraries/LibWeb/DOM/Element.h
View file

@ -553,16 +553,16 @@ private:
Array<CSSPixelPoint, 3> m_scroll_offset;
bool m_in_top_layer : 1 { false };
bool m_rendered_in_top_layer : 1 { false };
bool m_style_uses_css_custom_properties { false };
bool m_affected_by_has_pseudo_class_in_subject_position : 1 { false };
bool m_affected_by_has_pseudo_class_in_non_subject_position : 1 { false };
bool m_affected_by_direct_sibling_combinator : 1 { false };
bool m_affected_by_indirect_sibling_combinator : 1 { false };
bool m_affected_by_first_or_last_child_pseudo_class : 1 { false };
bool m_affected_by_nth_child_pseudo_class : 1 { false };
bool m_affected_by_has_pseudo_class_with_relative_selector_that_has_sibling_combinator : 1 { false };
bool m_in_top_layer BOOL_BITFIELD { false };
bool m_rendered_in_top_layer BOOL_BITFIELD { false };
bool m_style_uses_css_custom_properties BOOL_BITFIELD { false };
bool m_affected_by_has_pseudo_class_in_subject_position BOOL_BITFIELD { false };
bool m_affected_by_has_pseudo_class_in_non_subject_position BOOL_BITFIELD { false };
bool m_affected_by_direct_sibling_combinator BOOL_BITFIELD { false };
bool m_affected_by_indirect_sibling_combinator BOOL_BITFIELD { false };
bool m_affected_by_first_or_last_child_pseudo_class BOOL_BITFIELD { false };
bool m_affected_by_nth_child_pseudo_class BOOL_BITFIELD { false };
bool m_affected_by_has_pseudo_class_with_relative_selector_that_has_sibling_combinator BOOL_BITFIELD { false };
size_t m_sibling_invalidation_distance { 0 };

12
Libraries/LibWeb/Painting/Paintable.h
View file

@ -168,12 +168,12 @@ private:
SelectionState m_selection_state { SelectionState::None };
bool m_positioned : 1 { false };
bool m_fixed_position : 1 { false };
bool m_sticky_position : 1 { false };
bool m_absolutely_positioned : 1 { false };
bool m_floating : 1 { false };
bool m_inline : 1 { false };
bool m_positioned BOOL_BITFIELD { false };
bool m_fixed_position BOOL_BITFIELD { false };
bool m_sticky_position BOOL_BITFIELD { false };
bool m_absolutely_positioned BOOL_BITFIELD { false };
bool m_floating BOOL_BITFIELD { false };
bool m_inline BOOL_BITFIELD { false };
};
inline DOM::Node* HitTestResult::dom_node()

9
Meta/CMake/Swift/swift-settings.cmake
View file

@ -40,7 +40,7 @@ function(swizzle_target_properties_for_swift target_name)
endfunction()
function(add_swift_target_properties target_name)
cmake_parse_arguments(PARSE_ARGV 1 SWIFT_TARGET "" "" "LAGOM_LIBRARIES")
cmake_parse_arguments(PARSE_ARGV 1 SWIFT_TARGET "" "" "LAGOM_LIBRARIES;COMPILE_DEFINITIONS;COMPILE_OPTIONS")
target_compile_features(${target_name} PUBLIC cxx_std_${CMAKE_CXX_STANDARD})
target_compile_options(${target_name} PUBLIC "SHELL:$<$<COMPILE_LANGUAGE:Swift>:-Xcc -std=c++23 -cxx-interoperability-mode=default>")
@ -60,8 +60,13 @@ function(add_swift_target_properties target_name)
get_target_property(_NATIVE_DIRS ${target_name} INCLUDE_DIRECTORIES)
list(APPEND _NATIVE_DIRS ${CMAKE_Swift_MODULE_DIRECTORY})
set(EXTRA_COMPILE_DEFINITIONS "")
foreach (compile_definition IN LISTS SWIFT_TARGET_COMPILE_DEFINITIONS)
list(APPEND EXTRA_COMPILE_DEFINITIONS "-Xcc" "-D${compile_definition}")
endforeach()
_swift_generate_cxx_header(${target_name} "${target_name}-Swift.h"
SEARCH_PATHS ${_NATIVE_DIRS}
COMPILE_OPTIONS ${VFS_OVERLAY_OPTIONS}
COMPILE_OPTIONS ${VFS_OVERLAY_OPTIONS} ${EXTRA_COMPILE_DEFINITIONS} ${SWIFT_TARGET_COMPILE_OPTIONS}
)
endfunction()