Merge branch 'main' into allowable-serialization

Author: nkcsgexi

.github/CODEOWNERS

@@ -19,3 +19,9 @@ lib/ClangImporter           @zoecarver @hyp @egorzhdan
 lib/PrintAsClang            @zoecarver @hyp @egorzhdan
 stdlib/public/Cxx           @zoecarver @hyp @egorzhdan
 test/Interop                @zoecarver @hyp @egorzhdan
+
+# Windows support
+cmake/**/*Windows*    @compnerd
+lib/Basic/Windows     @compnerd
+stdlib/public/Windows @compnerd
+utils/*windows*       @compnerd

.github/ISSUE_TEMPLATE/bug_report.md

@@ -2,7 +2,7 @@
 name: Bug report
 about: Create a report to help us improve
 title: ''
-labels: bug
+labels: bug, triage needed
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/feature_request.md

@@ -2,7 +2,7 @@
 name: Feature request
 about: Share an idea
 title: ''
-labels: feature request
+labels: feature request, triage needed
 assignees: ''
 
 ---

CHANGELOG.md

@@ -4,6 +4,21 @@ _**Note:** This is in reverse chronological order, so newer entries are added to
 
 ## Swift 5.8
 
+* [#56139][]:
+
+  Сollection downcasts in cast patterns are now supported. For example:
+
+  ```swift
+  func collectionDowncast(_ arr: [Any]) {
+    switch arr {
+    case let ints as [Int]:
+      // ...
+    case is [Bool]:
+      // ...
+    }
+  }
+  ``` 
+
 * [SE-0365][]:
 
   Implicit `self` is now permitted for `weak self` captures, after `self` is unwrapped.
@@ -9624,3 +9639,4 @@ using the `.dynamicType` member to retrieve the type of an expression should mig
 [#54246]: <https://github.com/apple/swift/issues/54246>
 [#57081]: <https://github.com/apple/swift/issues/57081>
 [#57225]: <https://github.com/apple/swift/issues/57225>
+[#56139]: <https://github.com/apple/swift/issues/56139>

cmake/modules/SwiftConfigureSDK.cmake

@@ -392,9 +392,9 @@ macro(configure_sdk_unix name architectures)
 
         set(SWIFT_SDK_OPENBSD_ARCH_amd64_TRIPLE "amd64-unknown-openbsd${openbsd_system_version}")
 
-	if(CMAKE_SYSROOT)
-	  set(SWIFT_SDK_OPENBSD_ARCH_${arch}_PATH "${CMAKE_SYSROOT}${SWIFT_SDK_OPENBSD_ARCH_${arch}_PATH}" CACHE INTERNAL "sysroot path" FORCE)
-	endif()
+        if(CMAKE_SYSROOT)
+          set(SWIFT_SDK_OPENBSD_ARCH_${arch}_PATH "${CMAKE_SYSROOT}${SWIFT_SDK_OPENBSD_ARCH_${arch}_PATH}" CACHE INTERNAL "sysroot path" FORCE)
+        endif()
       elseif("${prefix}" STREQUAL "CYGWIN")
         if(NOT arch STREQUAL x86_64)
           message(FATAL_ERROR "unsupported arch for cygwin: ${arch}")

docs/ReferenceGuides/UnderscoredAttributes.md

@@ -535,6 +535,15 @@ initializers from its superclass. This implies that all designated initializers
 overridden. This attribute is often printed alongside
 `@_hasMissingDesignatedInitializers` in this case.
 
+## `@inline(__always)`
+
+Forces the function to be inlined.
+
+If it's not possible to always inline the function, e.g. if it's a self-
+recursive function, the attribute is ignored.
+
+This attribute has no effect in debug builds.
+
 ## `@_noEagerMove`
 
 When applied to a value, indicates that the value's lifetime is lexical, that

docs/SIL.rst

@@ -1070,14 +1070,14 @@ The minimal OS-version where the function is available.
 ::
 
   sil-function-attribute ::= '[' sil-function-inlining ']'
-  sil-function-inlining ::= 'never'
+  sil-function-inlining ::= 'noinline'
 
 The function is never inlined.
 ::
 
-  sil-function-inlining ::= 'always'
+  sil-function-inlining ::= 'always_inline'
 
-The function is always inlined, even in a ``Onone`` build.
+The function is always inlined.
 ::
 
   sil-function-attribute ::= '[' sil-function-optimization ']'

include/swift/APIDigester/ModuleAnalyzerNodes.h

@@ -212,7 +212,7 @@ class SDKContext {
   DiagnosticEngine &getDiags(SourceLoc Loc = SourceLoc());
   void addDiagConsumer(DiagnosticConsumer &Consumer);
   void setCommonVersion(uint8_t Ver) {
-    assert(!CommonVersion.hasValue());
+    assert(!CommonVersion.has_value());
     CommonVersion = Ver;
   }
   uint8_t getCommonVersion() const {
@@ -401,7 +401,7 @@ class SDKNodeDecl: public SDKNode {
   StringRef getGenericSignature() const { return GenericSig; }
   StringRef getSugaredGenericSignature() const { return SugaredGenericSig; }
   StringRef getScreenInfo() const;
-  bool hasFixedBinaryOrder() const { return FixedBinaryOrder.hasValue(); }
+  bool hasFixedBinaryOrder() const { return FixedBinaryOrder.has_value(); }
   uint8_t getFixedBinaryOrder() const { return *FixedBinaryOrder; }
   PlatformIntroVersion getIntroducingVersion() const { return introVersions; }
   StringRef getObjCName() const { return ObjCName; }
@@ -685,9 +685,9 @@ class SDKNodeDeclAbstractFunc : public SDKNodeDecl {
 public:
   bool isThrowing() const { return IsThrowing; }
   bool reqNewWitnessTableEntry() const { return ReqNewWitnessTableEntry; }
-  uint8_t getSelfIndex() const { return SelfIndex.getValue(); }
+  uint8_t getSelfIndex() const { return SelfIndex.value(); }
   Optional<uint8_t> getSelfIndexOptional() const { return SelfIndex; }
-  bool hasSelfIndex() const { return SelfIndex.hasValue(); }
+  bool hasSelfIndex() const { return SelfIndex.has_value(); }
   static bool classof(const SDKNode *N);
   virtual void jsonize(json::Output &out) override;
   static StringRef getTypeRoleDescription(SDKContext &Ctx, unsigned Index);

include/swift/AST/ArgumentList.h

@@ -154,7 +154,7 @@ class alignas(Argument) ArgumentList final
     assert(!firstTrailingClosureIndex || *firstTrailingClosureIndex < numArgs &&
            "Invalid trailing closure index");
     RawFirstTrailingClosureIndex =
-        firstTrailingClosureIndex.getValueOr(numArgs);
+        firstTrailingClosureIndex.value_or(numArgs);
   }
 
   ArgumentList(const ArgumentList &) = delete;
@@ -400,7 +400,7 @@ class alignas(Argument) ArgumentList final
 
   /// Whether any unlabeled or labeled trailing closures are present.
   bool hasAnyTrailingClosures() const {
-    return getOriginalArgs()->getFirstTrailingClosureIndex().hasValue();
+    return getOriginalArgs()->getFirstTrailingClosureIndex().has_value();
   }
 
   /// Whether a given index is for an unlabeled trailing closure, which is the
@@ -443,7 +443,7 @@ class alignas(Argument) ArgumentList final
   iterator_range<iterator> getNonTrailingArgs() const {
     assert(!HasOriginalArgs && "Query original args instead");
     auto idx = getFirstTrailingClosureIndex();
-    if (!idx.hasValue())
+    if (!idx.has_value())
       return *this;
 
     return {begin(), iterator(this, *idx)};
@@ -456,7 +456,7 @@ class alignas(Argument) ArgumentList final
   iterator_range<iterator> getTrailingClosures() const {
     assert(!HasOriginalArgs && "Query original args instead");
     auto idx = getFirstTrailingClosureIndex();
-    if (!idx.hasValue())
+    if (!idx.has_value())
       return {end(), end()};
 
     return {iterator(this, *idx), end()};
@@ -470,7 +470,7 @@ class alignas(Argument) ArgumentList final
   Optional<Argument> getFirstTrailingClosure() const {
     assert(!HasOriginalArgs && "Query original args instead");
     auto idx = getFirstTrailingClosureIndex();
-    if (!idx.hasValue())
+    if (!idx.has_value())
       return None;
     return get(*idx);
   }

include/swift/AST/Attr.h

@@ -2634,13 +2634,13 @@ class TypeAttributes {
     return true;
   }
 
-  bool hasConvention() const { return ConventionArguments.hasValue(); }
+  bool hasConvention() const { return ConventionArguments.has_value(); }
 
   /// Returns the primary calling convention string.
   ///
   /// Note: For C conventions, this may not represent the full convention.
   StringRef getConventionName() const {
-    return ConventionArguments.getValue().Name;
+    return ConventionArguments.value().Name;
   }
 
   /// Show the string enclosed between @convention(..)'s parentheses.
@@ -2664,10 +2664,10 @@ class TypeAttributes {
 #include "swift/AST/ReferenceStorage.def"
   }
 
-  bool hasOpenedID() const { return OpenedID.hasValue(); }
+  bool hasOpenedID() const { return OpenedID.has_value(); }
   UUID getOpenedID() const { return *OpenedID; }
 
-  bool hasConstraintType() const { return ConstraintType.hasValue(); }
+  bool hasConstraintType() const { return ConstraintType.has_value(); }
   TypeRepr *getConstraintType() const { return *ConstraintType; }
 
   /// Given a name like "autoclosure", return the type attribute ID that