Merge remote-tracking branch 'upstream/main'

Author: MAJKFL

.editorconfig

@@ -0,0 +1,9 @@
+# editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+insert_final_newline = true

.flake8

@@ -44,6 +44,7 @@ filename =
 exclude =
     .git,
     __pycache__,
+    .build,
 
 ignore =
     # The black tool treats slices consistently, the E203 warning is not PEP8

.github/CODEOWNERS

@@ -55,7 +55,7 @@
 /docs/Windows*                            @compnerd
 
 # include
-/include/swift-c/DependencyScan/                   @artemcm
+/include/swift-c/DependencyScan/                   @artemcm @cachemeifyoucan
 /include/swift/*Demangl*/                          @rjmccall
 /include/swift/AST/                                @hborla @slavapestov @xedin
 /include/swift/AST/*Availability*                  @tshortli
@@ -71,7 +71,7 @@
 /include/swift/Basic/                              @DougGregor
 /include/swift/Basic/Features.def                  @DougGregor @hborla
 /include/swift/ClangImporter                       @zoecarver @hyp @egorzhdan @beccadax @ian-twilightcoder @Xazax-hun
-/include/swift/DependencyScan                      @artemcm
+/include/swift/DependencyScan                      @artemcm @cachemeifyoucan
 /include/swift/Driver*/                            @artemcm
 /include/swift/Frontend*/                          @artemcm @tshortli
 /include/swift/IDE/                                @ahoppen @bnbarham @hamishknight @rintaro
@@ -118,7 +118,7 @@
 /lib/Basic/Windows                                  @compnerd
 /lib/ClangImporter                                  @zoecarver @hyp @egorzhdan @beccadax @ian-twilightcoder @Xazax-hun
 /lib/ClangImporter/DWARFImporter*                   @adrian-prantl
-/lib/DependencyScan                                 @artemcm
+/lib/DependencyScan                                 @artemcm @cachemeifyoucan
 /lib/Driver*/                                       @artemcm
 /lib/DriverTool/autolink_extract_main.cpp           @MaxDesiatov @etcwilde
 /lib/DriverTool/sil*                                @jckarter
@@ -247,7 +247,7 @@
 /unittests/*Demangl*/                     @rjmccall
 /unittests/AST/                           @hborla @slavapestov @xedin
 /unittests/AST/*Evaluator*                @CodaFi @slavapestov
-/unittests/DependencyScan/                @artemcm
+/unittests/DependencyScan/                @artemcm @cachemeifyoucan
 /unittests/FrontendTool/                  @artemcm @tshortli
 /unittests/Parse/                         @ahoppen @bnbarham @CodaFi @DougGregor @hamishknight @rintaro
 /unittests/Reflection/                    @slavapestov
@@ -261,13 +261,15 @@
 
 # utils
 /utils/*windows*                                              @compnerd
+/utils/generate-xcode                                         @hamishknight
 /utils/gyb_sourcekit_support/                                 @ahoppen @bnbarham @hamishknight @rintaro
 /utils/sourcekit_fuzzer/                                      @ahoppen @bnbarham @hamishknight @rintaro
 /utils/swift_build_support/products/earlyswiftsyntax.py       @ahoppen @bnbarham @hamishknight @rintaro
 /utils/swift_build_support/products/skstresstester.py         @ahoppen @bnbarham @hamishknight @rintaro
 /utils/swift_build_support/products/sourcekitlsp.py           @ahoppen @bnbarham @hamishknight @rintaro
 /utils/swift_build_support/products/swiftformat.py            @ahoppen @allevato @bnbarham @hamishknight @rintaro
 /utils/swift_build_support/products/swiftsyntax.py            @ahoppen @bnbarham @hamishknight @rintaro
+/utils/swift-xcodegen/                                        @hamishknight
 /utils/update-checkout*                                       @shahmishal
 /utils/update_checkout/                                       @shahmishal
 /utils/vim/                                                   @compnerd

.gitignore

@@ -52,6 +52,7 @@ docs/_build
 
 # SwiftPM
 .build
+.index-build
 .swiftpm
 
 #==============================================================================#
@@ -78,3 +79,20 @@ SortedCFDatabase.def
 htmlcov
 .coverage
 /benchmark/scripts/Benchmark_Driverc
+
+#==============================================================================#
+# Ignore copied Swift Stdlib files while migrating stdlib
+#==============================================================================#
+Runtimes/**/*.swift
+Runtimes/**/*.h
+Runtimes/**/*.cpp
+Runtimes/**/*.c
+Runtimes/**/*.m
+Runtimes/**/*.mm
+Runtimes/**/*.def
+Runtimes/**/*.gyb
+Runtimes/**/*.apinotes
+Runtimes/**/*.yaml
+Runtimes/**/*.inc
+Runtimes/**/*.json
+Runtimes/**/*.modulemap

CHANGELOG.md

@@ -3,7 +3,30 @@
 > [!NOTE]
 > This is in reverse chronological order, so newer entries are added to the top.
 
-## Swift (next)
+## Swift 6.1
+
+* Projected value initializers are now correctly injected into calls when
+  an argument exactly matches a parameter with an external property wrapper.
+
+  For example:
+
+  ```swift
+  struct Binding {
+    ...
+	init(projectedValue: Self) { ... }
+  }
+
+  func checkValue(@Binding value: Int) {}
+
+  func use(v: Binding<Int>) {
+    checkValue($value: v)
+	// Transformed into: `checkValue(value: Binding(projectedValue: v))`
+  }
+  ```
+
+  Previous versions of the Swift compiler incorrectly omitted projected value
+  initializer injection in the call to `checkValue` because the argument type
+  matched the parameter type exactly.
 
 * [SE-0444][]:
   When the upcoming feature `MemberImportVisibility` is enabled, Swift will
@@ -40,7 +63,7 @@
 * [SE-0442][]:
   TaskGroups can now be created without explicitly specifying their child task's result types:
 
-Previously the child task type would have to be specified explicitly when creating the task group:
+  Previously the child task type would have to be specified explicitly when creating the task group:
 
   ```swift
   await withTaskGroup(of: Int.self) { group in 
@@ -50,7 +73,7 @@ Previously the child task type would have to be specified explicitly when creati
   } 
   ```
 
-Now the type is inferred based on the first use of the task group within the task group's body:
+  Now the type is inferred based on the first use of the task group within the task group's body:
 
   ```swift
   await withTaskGroup { group in 
@@ -63,6 +86,8 @@ Now the type is inferred based on the first use of the task group within the tas
 
 ## Swift 6.0
 
+### 2024-09-17 (Xcode 16.0)
+
 * Swift 6 comes with a new language mode that prevents the risk of data races
   at compile time. This guarantee is accomplished through _data isolation_; the
   compiler will validate that data passed over a boundary between concurrently

CMakeLists.txt

@@ -747,6 +747,10 @@ option(SWIFT_ENABLE_EXPERIMENTAL_PARSER_VALIDATION
   "Enable experimental SwiftParser validation by default"
   FALSE)
 
+option(SWIFT_ENABLE_EXPERIMENTAL_POINTER_BOUNDS
+  "Enable experimental safe wrappers around external functions"
+  FALSE)
+
 cmake_dependent_option(SWIFT_BUILD_SOURCEKIT
   "Build SourceKit" TRUE
   "SWIFT_ENABLE_DISPATCH" FALSE)
@@ -946,12 +950,6 @@ if (NOT BOOTSTRAPPING_MODE)
   message(FATAL_ERROR "turning off bootstrapping is not supported anymore")
 endif()
 
-# As a temporary workaround, disable SwiftCompilerSources on
-# Windows/ARM64 because the compiler segfaults
-if(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64")
-  set(BOOTSTRAPPING_MODE "OFF")
-endif()
-
 set(SWIFT_RUNTIME_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin")
 set(SWIFT_LIBRARY_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib")
 if("${SWIFT_NATIVE_SWIFT_TOOLS_PATH}" STREQUAL "")
@@ -1399,6 +1397,7 @@ if(SWIFT_BUILD_STDLIB OR SWIFT_BUILD_SDK_OVERLAY)
   message(STATUS "Observation Support:                ${SWIFT_ENABLE_EXPERIMENTAL_OBSERVATION}")
   message(STATUS "Synchronization Support:            ${SWIFT_ENABLE_SYNCHRONIZATION}")
   message(STATUS "Volatile Support:                   ${SWIFT_ENABLE_VOLATILE}")
+  message(STATUS "Pointer Bounds Support:             ${SWIFT_ENABLE_EXPERIMENTAL_POINTER_BOUNDS}")
   message(STATUS "")
 else()
   message(STATUS "Not building Swift standard library, SDK overlays, and runtime")
@@ -1466,6 +1465,10 @@ if(SWIFT_ENABLE_DISPATCH)
 endif()
 
 # Add all of the subdirectories, where we actually do work.
+add_subdirectory(include)
+if(SWIFT_INCLUDE_TOOLS)
+  add_subdirectory(lib)
+endif()
 
 ###############
 # PLEASE READ #
@@ -1518,11 +1521,7 @@ if(SWIFT_INCLUDE_APINOTES)
   add_subdirectory(apinotes)
 endif()
 
-add_subdirectory(include)
-
 if(SWIFT_INCLUDE_TOOLS)
-  add_subdirectory(lib)
-
   add_subdirectory(SwiftCompilerSources)
 
   # Always include this after including stdlib/!
@@ -1579,3 +1578,48 @@ if(XCODE)
   add_custom_target(Miscellaneous
       SOURCES ${SWIFT_TOPLEVEL_HEADERS})
 endif()
+
+# New standard library build
+option(SWIFT_ENABLE_NEW_RUNTIME_BUILD "Build Swift runtimes with new build system" OFF)
+if(SWIFT_ENABLE_NEW_RUNTIME_BUILD)
+
+  add_custom_target(PopulateRuntimeSourceDir
+    COMMAND "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_SOURCE_DIR}/Runtimes/Resync.cmake"
+    COMMENT "Copying sources into new runtime build")
+
+  foreach(sdk ${SWIFT_SDKS})
+    foreach(arch ${SWIFT_SDK_${sdk}_ARCHITECTURES})
+      # Provide a mechanism to skip building one of these runtimes
+      if(SWIFT_SKIP_${sdk}_${arch}_RUNTIME)
+        message(STATUS "Skipping: ${arch}-${sdk} runtime build")
+        continue()
+      endif()
+      set(stdlib_target "swift-stdlib-${SWIFT_SDK_${sdk}_LIB_SUBDIR}-${arch}")
+      if(${SWIFT_SDK_${sdk}_${arch}_CACHE})
+        set(stdlib_cache_file_flag -C ${SWIFT_SDK_${sdk}_${arch}_CACHE})
+      endif()
+      ExternalProject_Add("${stdlib_target}-core"
+        SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Runtimes/Core"
+        # TODO: Add this once we're ready to start swapping out the libraries
+        #       for testing
+        # INSTALL_DIR "${CMAKE_BINARY_DIR}/"
+
+        DEPENDS PopulateRuntimeSourceDir
+        CMAKE_ARGS
+          -DCMAKE_INSTALL_LIBDIR:FILEPATH=lib/swift/${SWIFT_SDK_${sdk}_LIB_SUBDIR}/${arch}
+          # Compiler will see mismatched swift modules and fail initial checks
+          -DCMAKE_Swift_COMPILER_WORKS:BOOLEAN=YES
+          -DBUILD_SHARED_LIBS:BOOLEAN=YES # TODO: Make this configurable
+          ${stdlib_cache_file_flag}
+          -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
+          -DCMAKE_INSTALL_PREFIX:FILEPATH=<INSTALL_DIR>
+          -DCMAKE_Swift_COMPILER:FILEPATH=$<IF:$<BOOL:${CMAKE_CROSSCOMPILING}>,${CMAKE_Swift_COMPILER},$<PATH:REPLACE_FILENAME,$<TARGET_FILE:swift-frontend>,swiftc>>
+          -DCMAKE_C_COMPILER:FILEPATH=${CMAKE_C_COMPILER}
+          -DCMAKE_CXX_COMPILER:FILEPATH=${CMAKE_CXX_COMPILER}
+          -DCMAKE_COLOR_DIAGNOSTICS:BOOLEAN=${CMAKE_COLOR_DIAGNOSTICS})
+      if(NOT ${CMAKE_CROSSCOMPILING})
+        add_dependencies("${stdlib_target}" swift-frontend)
+      endif()
+    endforeach()
+  endforeach()
+endif()

CONTRIBUTING.md

@@ -236,7 +236,7 @@ To switch to this template when drafting a pull request in a [swiftlang](https:/
 ### Commit Access
 
 Commit access is granted to contributors with a track record of submitting high-quality changes.
-If you would like commit access, please send an email to [the code owners list](code-owners@forums.swift.org) with the GitHub user name that you want to use and a list of 5 non-trivial pull requests that were accepted without modifications.
+If you would like commit access, please send an email to [the code owners list](mailto:code-owners@forums.swift.org) with the GitHub user name that you want to use and a list of 5 non-trivial pull requests that were accepted without modifications.
 
 Once you’ve been granted commit access, you will be able to commit to all of the GitHub repositories that host Swift.org projects.
 To verify that your commit access works, please make a test commit (for example, change a comment or add a blank line). The following policies apply to users with commit access: