Merge remote-tracking branch 'origin/main' into xcode-15-1-b2-test

Author: shahmishal

include/swift/AST/Attr.def

@@ -108,7 +108,7 @@ DECL_ATTR(_silgen_name, SILGenName,
   OnAbstractFunction | OnVar | LongAttribute | UserInaccessible | ABIStableToAdd | ABIStableToRemove | APIStableToAdd | APIStableToRemove,
   0)
 DECL_ATTR(available, Available,
-  OnAbstractFunction | OnGenericType | OnVar | OnSubscript | OnEnumElement | OnMacro | OnExtension | AllowMultipleAttributes | LongAttribute | ABIStableToAdd | ABIStableToRemove | APIStableToAdd | APIStableToRemove,
+  OnAbstractFunction | OnAssociatedType | OnGenericType | OnVar | OnSubscript | OnEnumElement | OnMacro | OnExtension | AllowMultipleAttributes | LongAttribute | ABIStableToAdd | ABIStableToRemove | APIStableToAdd | APIStableToRemove,
   1)
 DECL_ATTR(objc, ObjC,
   OnAbstractFunction | OnClass | OnProtocol | OnExtension | OnVar | OnSubscript | OnEnum | OnEnumElement | ABIBreakingToAdd | ABIBreakingToRemove | APIStableToAdd | APIStableToRemove,

include/swift/AST/DiagnosticsSema.def

@@ -2851,7 +2851,6 @@ WARNING(assoc_type_default_conformance_failed,none,
 NOTE(assoc_type_default_here,none,
      "associated type %0 has default type %1 written here",
      (const AssociatedTypeDecl *, Type))
-
 ERROR(protocol_access,none,
       "%select{protocol must be declared %select{"
       "%select{private|fileprivate|internal|package|%error|%error}1"
@@ -6837,6 +6836,10 @@ ERROR(inlinable_decl_not_public,
 ERROR(inlinable_resilient_deinit,
       none, "deinitializer can only be '@inlinable' if the class is '@_fixed_layout'", ())
 
+ERROR(resilient_associated_type_less_available_requires_default,none,
+      "associated type %0 that is less available than its protocol must have a "
+      "default", (const AssociatedTypeDecl *))
+
 //------------------------------------------------------------------------------
 // MARK: @_specialize diagnostics
 //------------------------------------------------------------------------------

include/swift/AST/SourceFile.h

@@ -313,9 +313,6 @@ class SourceFile final : public FileUnit {
   /// includes the SourceFileSyntax node corresponding to this source file.
   void *getExportedSourceFile() const;
 
-  /// The list of local type declarations in the source file.
-  llvm::SetVector<TypeDecl *> LocalTypeDecls;
-
   /// Defer type checking of `AFD` to the end of `Sema`
   void addDelayedFunction(AbstractFunctionDecl *AFD);
 
@@ -762,6 +759,8 @@ class SourceFile final : public FileUnit {
   /// Returns true if the source file contains concurrency in the top-level
   bool isAsyncTopLevelSourceFile() const;
 
+  ArrayRef<TypeDecl *> getLocalTypeDecls() const;
+
 private:
 
   /// If not \c None, the underlying vector contains the parsed tokens of this

include/swift/AST/TypeCheckRequests.h

@@ -4732,6 +4732,23 @@ class UniqueUnderlyingTypeSubstitutionsRequest
   void cacheResult(llvm::Optional<SubstitutionMap>) const;
 };
 
+/// Collect all local type declarations in the SourceFile.
+class LocalTypeDeclsRequest
+    : public SimpleRequest<LocalTypeDeclsRequest,
+                           ArrayRef<TypeDecl *>(SourceFile *),
+                           RequestFlags::Cached> {
+public:
+  using SimpleRequest::SimpleRequest;
+
+private:
+  friend SimpleRequest;
+
+  ArrayRef<TypeDecl *> evaluate(Evaluator &evaluator, SourceFile *sf) const;
+
+public:
+  bool isCached() const { return true; }
+};
+
 #define SWIFT_TYPEID_ZONE TypeChecker
 #define SWIFT_TYPEID_HEADER "swift/AST/TypeCheckerTypeIDZone.def"
 #include "swift/Basic/DefineTypeIDZone.h"

include/swift/AST/TypeCheckerTypeIDZone.def

@@ -542,3 +542,6 @@ SWIFT_REQUEST(TypeChecker, SemanticDeclAttrsRequest,
 SWIFT_REQUEST(TypeChecker, UniqueUnderlyingTypeSubstitutionsRequest,
               llvm::Optional<SubstitutionMap>(const Decl *),
               SeparatelyCached, NoLocationInfo)
+SWIFT_REQUEST(TypeChecker, LocalTypeDeclsRequest,
+              ArrayRef<TypeDecl *>(SourceFile *),
+              Cached, NoLocationInfo)

include/swift/Basic/BasicBridging.h

@@ -178,8 +178,7 @@ void BridgedData_free(BridgedData data);
 //===----------------------------------------------------------------------===//
 
 enum ENUM_EXTENSIBILITY_ATTR(open) BridgedFeature {
-#define LANGUAGE_FEATURE(FeatureName, SENumber, Description, Option)           \
-  FeatureName,
+#define LANGUAGE_FEATURE(FeatureName, SENumber, Description) FeatureName,
 #include "swift/Basic/Features.def"
 };
 

include/swift/Basic/Feature.h

@@ -22,15 +22,13 @@ class LangOptions;
 
 /// Enumeration describing all of the named features.
 enum class Feature {
-#define LANGUAGE_FEATURE(FeatureName, SENumber, Description, Option) \
-FeatureName,
+#define LANGUAGE_FEATURE(FeatureName, SENumber, Description) FeatureName,
 #include "swift/Basic/Features.def"
 };
 
 constexpr unsigned numFeatures() {
   enum Features {
-#define LANGUAGE_FEATURE(FeatureName, SENumber, Description, Option) \
-FeatureName,
+#define LANGUAGE_FEATURE(FeatureName, SENumber, Description) FeatureName,
 #include "swift/Basic/Features.def"
     NumFeatures
   };

include/swift/Basic/Features.def

@@ -14,7 +14,7 @@
 // features.
 //
 //
-// LANGUAGE_FEATURE(FeatureName, SENumber, Description, Option)
+// LANGUAGE_FEATURE(FeatureName, SENumber, Description)
 //
 //   The LANGUAGE_FEATURE macro describes each named feature that is
 //   introduced in Swift. It allows Swift code to check for a particular
@@ -25,9 +25,6 @@
 //     SENumber: The number assigned to this feature in the Swift Evolution
 //       process, or 0 if there isn't one.
 //     Description: A string literal describing the feature.
-//     Option: either a reference to a language option in the form
-//       "langOpts.<option name>" or "true" to indicate that it's always
-//       enabled.
 //
 // Suppressible language features can be suppressed when printing
 // an interface without having to suppress the entire declaration they're
@@ -44,79 +41,76 @@
 #endif
 
 #ifndef SUPPRESSIBLE_LANGUAGE_FEATURE
-#define SUPPRESSIBLE_LANGUAGE_FEATURE(FeatureName, SENumber, Description, Option) \
-  LANGUAGE_FEATURE(FeatureName, SENumber, Description, Option)
+#define SUPPRESSIBLE_LANGUAGE_FEATURE(FeatureName, SENumber, Description) \
+  LANGUAGE_FEATURE(FeatureName, SENumber, Description)
 #endif
 
 #ifndef UPCOMING_FEATURE
 #  define UPCOMING_FEATURE(FeatureName, SENumber, Version)   \
-     LANGUAGE_FEATURE(FeatureName, SENumber, #FeatureName, \
-                      langOpts.hasFeature(#FeatureName))
+     LANGUAGE_FEATURE(FeatureName, SENumber, #FeatureName)
 #endif
 
 #ifndef EXPERIMENTAL_FEATURE
 // Warning: setting `AvailableInProd` to `true` on a feature means that the flag
 //          cannot be dropped in the future.
 #  define EXPERIMENTAL_FEATURE(FeatureName, AvailableInProd)  \
-     LANGUAGE_FEATURE(FeatureName, 0, #FeatureName, \
-                      langOpts.hasFeature(#FeatureName))
+     LANGUAGE_FEATURE(FeatureName, 0, #FeatureName)
 #endif
 
 #ifndef EXPERIMENTAL_FEATURE_EXCLUDED_FROM_MODULE_INTERFACE
 #  define EXPERIMENTAL_FEATURE_EXCLUDED_FROM_MODULE_INTERFACE(FeatureName, AvailableInProd) \
      EXPERIMENTAL_FEATURE(FeatureName, AvailableInProd)
 #endif
 
-LANGUAGE_FEATURE(AsyncAwait, 296, "async/await", true)
-LANGUAGE_FEATURE(EffectfulProp, 310, "Effectful properties", true)
-LANGUAGE_FEATURE(MarkerProtocol, 0, "@_marker protocol", true)
-LANGUAGE_FEATURE(Actors, 0, "actors", true)
-LANGUAGE_FEATURE(ConcurrentFunctions, 0, "@concurrent functions", true)
-LANGUAGE_FEATURE(RethrowsProtocol, 0, "@rethrows protocol", true)
-LANGUAGE_FEATURE(GlobalActors, 316, "Global actors", true)
-LANGUAGE_FEATURE(BuiltinJob, 0, "Builtin.Job type", true)
-LANGUAGE_FEATURE(Sendable, 0, "Sendable and @Sendable", true)
-LANGUAGE_FEATURE(BuiltinExecutor, 0, "Builtin.Executor type", true)
-LANGUAGE_FEATURE(BuiltinContinuation, 0, "Continuation builtins", true)
-LANGUAGE_FEATURE(BuiltinHopToActor, 0, "Builtin.HopToActor", true)
-LANGUAGE_FEATURE(BuiltinTaskGroupWithArgument, 0, "TaskGroup builtins", true)
-LANGUAGE_FEATURE(InheritActorContext, 0, "@_inheritActorContext attribute", true)
-LANGUAGE_FEATURE(ImplicitSelfCapture, 0, "@_implicitSelfCapture attribute", true)
-LANGUAGE_FEATURE(BuiltinBuildTaskExecutor, 0, "TaskExecutor-building builtins", true)
-LANGUAGE_FEATURE(BuiltinBuildExecutor, 0, "Executor-building builtins", true)
-LANGUAGE_FEATURE(BuiltinBuildComplexEqualityExecutor, 0, "Executor-building for 'complexEquality executor' builtins", true)
-LANGUAGE_FEATURE(BuiltinBuildMainExecutor, 0, "MainActor executor building builtin", true)
-LANGUAGE_FEATURE(BuiltinCreateAsyncTaskInGroup, 0, "Task create in task group builtin with extra flags", true)
-LANGUAGE_FEATURE(BuiltinCreateAsyncTaskInGroupWithExecutor, 0, "Task create in task group builtin with extra flags", true)
-LANGUAGE_FEATURE(BuiltinCreateAsyncTaskWithExecutor, 0, "Task create builtin with extra executor preference", true)
-LANGUAGE_FEATURE(BuiltinCopy, 0, "Builtin.copy()", true)
-LANGUAGE_FEATURE(BuiltinStackAlloc, 0, "Builtin.stackAlloc", true)
-LANGUAGE_FEATURE(BuiltinUnprotectedStackAlloc, 0, "Builtin.unprotectedStackAlloc", true)
-LANGUAGE_FEATURE(BuiltinAllocVector, 0, "Builtin.allocVector", true)
-LANGUAGE_FEATURE(BuiltinTaskRunInline, 0, "Builtin.taskRunInline", true)
-LANGUAGE_FEATURE(BuiltinUnprotectedAddressOf, 0, "Builtin.unprotectedAddressOf", true)
-LANGUAGE_FEATURE(NewCxxMethodSafetyHeuristics, 0, "Only import C++ methods that return pointers (projections) on owned types as unsafe", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(SpecializeAttributeWithAvailability, 0, "@_specialize attribute with availability", true)
-LANGUAGE_FEATURE(BuiltinAssumeAlignment, 0, "Builtin.assumeAlignment", true)
-LANGUAGE_FEATURE(BuiltinCreateTaskGroupWithFlags, 0, "Builtin.createTaskGroupWithFlags", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(UnsafeInheritExecutor, 0, "@_unsafeInheritExecutor", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(PrimaryAssociatedTypes2, 346, "Primary associated types", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(UnavailableFromAsync, 0, "@_unavailableFromAsync", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(NoAsyncAvailability, 340, "@available(*, noasync)", true)
-LANGUAGE_FEATURE(BuiltinIntLiteralAccessors, 368, "Builtin.IntLiteral accessors", true)
-LANGUAGE_FEATURE(Macros, 0, "Macros", hasSwiftSwiftParser)
-LANGUAGE_FEATURE(
-    FreestandingExpressionMacros, 382, "Expression macros",
-        hasSwiftSwiftParser)
-LANGUAGE_FEATURE(AttachedMacros, 389, "Attached macros", hasSwiftSwiftParser)
-LANGUAGE_FEATURE(ExtensionMacros, 402, "Extension macros", hasSwiftSwiftParser)
-LANGUAGE_FEATURE(MoveOnly, 390, "noncopyable types", true)
-LANGUAGE_FEATURE(MoveOnlyResilientTypes, 390, "non-@frozen noncopyable types with library evolution", true)
-LANGUAGE_FEATURE(ParameterPacks, 393, "Value and type parameter packs", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(LexicalLifetimes, 0, "@_eagerMove/@_noEagerMove/@_lexicalLifetimes annotations", true)
-LANGUAGE_FEATURE(FreestandingMacros, 397, "freestanding declaration macros", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(RetroactiveAttribute, 364, "@retroactive", true)
-LANGUAGE_FEATURE(TypedThrows, 413, "Typed throws", true)
+LANGUAGE_FEATURE(AsyncAwait, 296, "async/await")
+LANGUAGE_FEATURE(EffectfulProp, 310, "Effectful properties")
+LANGUAGE_FEATURE(MarkerProtocol, 0, "@_marker protocol")
+LANGUAGE_FEATURE(Actors, 0, "actors")
+LANGUAGE_FEATURE(ConcurrentFunctions, 0, "@concurrent functions")
+LANGUAGE_FEATURE(RethrowsProtocol, 0, "@rethrows protocol")
+LANGUAGE_FEATURE(GlobalActors, 316, "Global actors")
+LANGUAGE_FEATURE(BuiltinJob, 0, "Builtin.Job type")
+LANGUAGE_FEATURE(Sendable, 0, "Sendable and @Sendable")
+LANGUAGE_FEATURE(BuiltinExecutor, 0, "Builtin.Executor type")
+LANGUAGE_FEATURE(BuiltinContinuation, 0, "Continuation builtins")
+LANGUAGE_FEATURE(BuiltinHopToActor, 0, "Builtin.HopToActor")
+LANGUAGE_FEATURE(BuiltinTaskGroupWithArgument, 0, "TaskGroup builtins")
+LANGUAGE_FEATURE(InheritActorContext, 0, "@_inheritActorContext attribute")
+LANGUAGE_FEATURE(ImplicitSelfCapture, 0, "@_implicitSelfCapture attribute")
+LANGUAGE_FEATURE(BuiltinBuildTaskExecutor, 0, "TaskExecutor-building builtins")
+LANGUAGE_FEATURE(BuiltinBuildExecutor, 0, "Executor-building builtins")
+LANGUAGE_FEATURE(BuiltinBuildComplexEqualityExecutor, 0, "Executor-building for 'complexEquality executor' builtins")
+LANGUAGE_FEATURE(BuiltinBuildMainExecutor, 0, "MainActor executor building builtin")
+LANGUAGE_FEATURE(BuiltinCreateAsyncTaskInGroup, 0, "Task create in task group builtin with extra flags")
+LANGUAGE_FEATURE(BuiltinCreateAsyncTaskInGroupWithExecutor, 0, "Task create in task group builtin with extra flags")
+LANGUAGE_FEATURE(BuiltinCreateAsyncTaskWithExecutor, 0, "Task create builtin with extra executor preference")
+LANGUAGE_FEATURE(BuiltinCopy, 0, "Builtin.copy()")
+LANGUAGE_FEATURE(BuiltinStackAlloc, 0, "Builtin.stackAlloc")
+LANGUAGE_FEATURE(BuiltinUnprotectedStackAlloc, 0, "Builtin.unprotectedStackAlloc")
+LANGUAGE_FEATURE(BuiltinAllocVector, 0, "Builtin.allocVector")
+LANGUAGE_FEATURE(BuiltinTaskRunInline, 0, "Builtin.taskRunInline")
+LANGUAGE_FEATURE(BuiltinUnprotectedAddressOf, 0, "Builtin.unprotectedAddressOf")
+LANGUAGE_FEATURE(NewCxxMethodSafetyHeuristics, 0, "Only import C++ methods that return pointers (projections) on owned types as unsafe")
+SUPPRESSIBLE_LANGUAGE_FEATURE(SpecializeAttributeWithAvailability, 0, "@_specialize attribute with availability")
+LANGUAGE_FEATURE(BuiltinAssumeAlignment, 0, "Builtin.assumeAlignment")
+LANGUAGE_FEATURE(BuiltinCreateTaskGroupWithFlags, 0, "Builtin.createTaskGroupWithFlags")
+SUPPRESSIBLE_LANGUAGE_FEATURE(UnsafeInheritExecutor, 0, "@_unsafeInheritExecutor")
+SUPPRESSIBLE_LANGUAGE_FEATURE(PrimaryAssociatedTypes2, 346, "Primary associated types")
+SUPPRESSIBLE_LANGUAGE_FEATURE(UnavailableFromAsync, 0, "@_unavailableFromAsync")
+SUPPRESSIBLE_LANGUAGE_FEATURE(NoAsyncAvailability, 340, "@available(*, noasync)")
+LANGUAGE_FEATURE(BuiltinIntLiteralAccessors, 368, "Builtin.IntLiteral accessors")
+LANGUAGE_FEATURE(Macros, 0, "Macros")
+LANGUAGE_FEATURE(FreestandingExpressionMacros, 382, "Expression macros")
+LANGUAGE_FEATURE(AttachedMacros, 389, "Attached macros")
+LANGUAGE_FEATURE(ExtensionMacros, 402, "Extension macros")
+LANGUAGE_FEATURE(MoveOnly, 390, "noncopyable types")
+LANGUAGE_FEATURE(MoveOnlyResilientTypes, 390, "non-@frozen noncopyable types with library evolution")
+LANGUAGE_FEATURE(ParameterPacks, 393, "Value and type parameter packs")
+SUPPRESSIBLE_LANGUAGE_FEATURE(LexicalLifetimes, 0, "@_eagerMove/@_noEagerMove/@_lexicalLifetimes annotations")
+LANGUAGE_FEATURE(FreestandingMacros, 397, "freestanding declaration macros")
+SUPPRESSIBLE_LANGUAGE_FEATURE(RetroactiveAttribute, 364, "@retroactive")
+SUPPRESSIBLE_LANGUAGE_FEATURE(ExtensionMacroAttr, 0, "@attached(extension)")
+LANGUAGE_FEATURE(TypedThrows, 413, "Typed throws")
 
 UPCOMING_FEATURE(ConciseMagicFile, 274, 6)
 UPCOMING_FEATURE(ForwardTrailingClosures, 286, 6)
@@ -137,8 +131,6 @@ EXPERIMENTAL_FEATURE(CodeItemMacros, false)
 EXPERIMENTAL_FEATURE(BodyMacros, true)
 EXPERIMENTAL_FEATURE(TupleConformances, false)
 
-SUPPRESSIBLE_LANGUAGE_FEATURE(ExtensionMacroAttr, 0, "@attached(extension)", true)
-
 // Whether to enable @_used and @_section attributes
 EXPERIMENTAL_FEATURE(SymbolLinkageMarkers, true)
 

include/swift/Basic/LangOptions.h

@@ -429,12 +429,6 @@ namespace swift {
     /// behavior. This is a staging flag, and will be removed in the future.
     bool EnableNewOperatorLookup = false;
 
-    /// The set of features that have been enabled.
-    FixedBitSet<numFeatures(), Feature> Features;
-
-    /// Temporary flag to support LLDB's transition to using \c Features.
-    bool EnableBareSlashRegexLiterals = false;
-
     /// Use Clang function types for computing canonical types.
     /// If this option is false, the clang function types will still be computed
     /// but will not be used for checking type equality.
@@ -690,6 +684,12 @@ namespace swift {
     /// by name.
     bool hasFeature(llvm::StringRef featureName) const;
 
+    /// Enable the given feature.
+    void enableFeature(Feature feature) { Features.insert(feature); }
+
+    /// Disable the given feature.
+    void disableFeature(Feature feature) { Features.remove(feature); }
+
     /// Sets the "_hasAtomicBitWidth" conditional.
     void setHasAtomicBitWidth(llvm::Triple triple);
 
@@ -762,6 +762,11 @@ namespace swift {
     llvm::SmallVector<std::pair<PlatformConditionKind, std::string>, 10>
         PlatformConditionValues;
     llvm::SmallVector<std::string, 2> CustomConditionalCompilationFlags;
+
+    /// The set of features that have been enabled. Doesn't include upcoming
+    /// features, which are checked against the language version in
+    /// `hasFeature`.
+    FixedBitSet<numFeatures(), Feature> Features;
   };
 
   class TypeCheckerOptions final {

include/swift/Option/Options.td

@@ -976,6 +976,11 @@ def EnbaleDefaultCMO : Flag<["-"], "enable-default-cmo">,
   Flags<[HelpHidden, FrontendOption]>,
   HelpText<"Perform conservative cross-module optimization">;
 
+def EnbaleCMOEverything : Flag<["-"], "enable-cmo-everything">,
+  Flags<[HelpHidden, FrontendOption]>,
+  HelpText<"Perform cross-module optimization on everything (all APIs). "
+           "This is the same level of serialization as Embedded Swift.">;
+
 def CrossModuleOptimization : Flag<["-"], "cross-module-optimization">,
   Flags<[HelpHidden, FrontendOption]>,
   HelpText<"Perform cross-module optimization">;

include/swift/Parse/Parser.h

@@ -1015,8 +1015,6 @@ class Parser {
   /// 'isLine = true' indicates parsing #line instead of #sourcelocation
   ParserStatus parseLineDirective(bool isLine = false);
 
-  void recordLocalType(TypeDecl *TD);
-
   /// Skip an `#if` configuration block containing only attributes.
   ///
   /// \returns true if the skipping was successful, false otherwise.

include/swift/SwiftRemoteMirror/Platform.h

@@ -41,6 +41,13 @@ extern "C" {
 # endif
 #endif
 
+#if defined(__clang__)
+#define SWIFT_REMOTE_MIRROR_DEPRECATED(MSG, FIX)                               \
+  __attribute__((__deprecated__(MSG, FIX)))
+#else
+#define SWIFT_REMOTE_MIRROR_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
+#endif
+
 #if defined(__cplusplus)
 }
 #endif

include/swift/SwiftRemoteMirror/SwiftRemoteMirror.h

@@ -188,7 +188,9 @@ swift_reflection_typeRefForMangledTypeName(SwiftReflectionContextRef ContextRef,
 ///
 /// The returned string is heap allocated and the caller must free() it when
 /// done.
-[[deprecated("Please use swift_reflection_copyNameForTypeRef()")]]
+SWIFT_REMOTE_MIRROR_DEPRECATED(
+    "Please use swift_reflection_copyNameForTypeRef()",
+    "swift_reflection_copyNameForTypeRef")
 SWIFT_REMOTE_MIRROR_LINKAGE
 char *
 swift_reflection_copyDemangledNameForTypeRef(