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Since these APIs operate on unsafes we consider them unsafe by default. This PR adds APINotes to override these defaults as these APIs will not touch the underlying buffer. This should slightly reduce the number of `unsafe`s in user code. rdar://159839254
76 lines
3.2 KiB
CMake
76 lines
3.2 KiB
CMake
#
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# API Notes for the C++ Standard Library
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#
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set(output_dir "${SWIFTLIB_DIR}/apinotes")
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add_custom_command_target(unused_var
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CUSTOM_TARGET_NAME CxxStdlib-apinotes
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COMMAND ${CMAKE_COMMAND} "-E" "make_directory" "${output_dir}"
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COMMAND ${CMAKE_COMMAND} "-E" "copy_if_different" "${CMAKE_CURRENT_SOURCE_DIR}/std.apinotes" "${output_dir}"
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COMMAND ${CMAKE_COMMAND} "-E" "copy_if_different" "${CMAKE_CURRENT_SOURCE_DIR}/std_span.apinotes" "${output_dir}"
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COMMAND ${CMAKE_COMMAND} "-E" "copy_if_different" "${CMAKE_CURRENT_SOURCE_DIR}/std_string_view.apinotes" "${output_dir}"
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COMMENT "Copying CxxStdlib API Notes to ${output_dir}"
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OUTPUT "${output_dir}/std.apinotes"
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DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/std.apinotes"
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DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/std_span.apinotes"
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DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/std_string_view.apinotes")
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swift_install_in_component(FILES std.apinotes
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DESTINATION "lib/swift/apinotes"
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COMPONENT compiler)
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set_property(TARGET CxxStdlib-apinotes PROPERTY FOLDER "Miscellaneous")
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add_dependencies(sdk-overlay CxxStdlib-apinotes)
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add_dependencies(compiler CxxStdlib-apinotes)
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set(swift_cxxstdlib_dependencies)
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if(NOT DEFINED SWIFT_BUILD_CLANG_OVERLAYS_SKIP_BUILTIN_FLOAT OR NOT SWIFT_BUILD_CLANG_OVERLAYS_SKIP_BUILTIN_FLOAT)
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set(swift_cxxstdlib_dependencies _Builtin_float)
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endif()
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#
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# C++ Standard Library Overlay.
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#
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# The overlay is fragile (i.e. it does not use library evolution)
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# as it's not ABI stable.
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add_swift_target_library(swiftCxxStdlib STATIC NO_LINK_NAME IS_STDLIB IS_SWIFT_ONLY
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std.swift
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Chrono.swift
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String.swift
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SWIFT_MODULE_DEPENDS Cxx ${swift_cxxstdlib_dependencies}
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SWIFT_MODULE_DEPENDS_ANDROID Android
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SWIFT_COMPILE_FLAGS ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS} ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
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-cxx-interoperability-mode=default
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-Xfrontend -module-interface-preserve-types-as-written
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# This flag is unnecessary when building with newer compilers that allow
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# using C++ symbols in resilient overlays (see f4204568).
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-enable-experimental-feature AssumeResilientCxxTypes
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-enable-experimental-feature Lifetimes
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-enable-experimental-feature AllowUnsafeAttribute
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-strict-memory-safety
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# The varying modularization of the C++ standard library on different
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# platforms makes it difficult to enable MemberImportVisibility for this
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# module
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-disable-upcoming-feature MemberImportVisibility
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SWIFT_COMPILE_FLAGS_LINUX
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${SWIFT_SDK_LINUX_CXX_OVERLAY_SWIFT_COMPILE_FLAGS}
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DEPLOYMENT_VERSION_OSX ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_OSX}
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DEPLOYMENT_VERSION_IOS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_IOS}
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DEPLOYMENT_VERSION_TVOS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_TVOS}
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DEPLOYMENT_VERSION_WATCHOS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_WATCHOS}
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DEPLOYMENT_VERSION_XROS ${COMPATIBILITY_MINIMUM_DEPLOYMENT_VERSION_XROS}
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LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS}"
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TARGET_SDKS ALL_APPLE_PLATFORMS LINUX LINUX_STATIC WINDOWS ANDROID FREEBSD
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MACCATALYST_BUILD_FLAVOR zippered
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INSTALL_IN_COMPONENT compiler
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INSTALL_BINARY_SWIFTMODULE NON_DARWIN_ONLY
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INSTALL_WITH_SHARED
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DEPENDS libstdcxx-modulemap libcxxshim_modulemap CxxStdlib-apinotes)
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