[NFC] SwiftCompilerSource: bridge Function.accessorKindName

(cherry picked from commit 25e9cbf)

Author: atrick

SwiftCompilerSources/Sources/SIL/Function.swift

@@ -219,6 +219,13 @@ final public class Function : CustomStringConvertible, HasShortDescription, Hash
     }
   }
 
+  public var accessorKindName: String? {
+    guard bridged.isAccessor() else {
+      return nil
+    }
+    return StringRef(bridged: bridged.getAccessorName()).string
+  }
+
   /// True, if the function runs with a swift 5.1 runtime.
   /// Note that this is function specific, because inlinable functions are de-serialized
   /// in a client module, which might be compiled with a different deployment target.

include/swift/AST/ASTBridging.h

@@ -393,6 +393,7 @@ struct BridgedDeclObj {
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedDeclObj Class_getDestructor() const;
   BRIDGED_INLINE bool AbstractFunction_isOverridden() const;
   BRIDGED_INLINE bool Destructor_isIsolated() const;
+  SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedStringRef AccessorDecl_getKindName() const;
 };
 
 enum ENUM_EXTENSIBILITY_ATTR(closed) BridgedASTNodeKind : uint8_t {

include/swift/SIL/SILBridging.h

@@ -462,6 +462,8 @@ struct BridgedFunction {
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedStringRef getName() const;
   BridgedOwnedString getDebugDescription() const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedLocation getLocation() const;
+  BRIDGED_INLINE bool isAccessor() const;
+  SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedStringRef getAccessorName() const;
   BRIDGED_INLINE bool hasOwnership() const;
   BRIDGED_INLINE bool hasLoweredAddresses() const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedCanType getLoweredFunctionTypeInContext() const;

include/swift/SIL/SILBridgingImpl.h

@@ -23,6 +23,7 @@
 #include "swift/AST/Builtins.h"
 #include "swift/AST/Decl.h"
 #include "swift/AST/SourceFile.h"
+#include "swift/AST/StorageImpl.h"
 #include "swift/AST/SubstitutionMap.h"
 #include "swift/AST/Types.h"
 #include "swift/Basic/BasicBridging.h"
@@ -649,6 +650,18 @@ BridgedLocation BridgedFunction::getLocation() const {
   return {swift::SILDebugLocation(getFunction()->getLocation(), getFunction()->getDebugScope())}; 
 }
 
+bool BridgedFunction::isAccessor() const {
+  if (auto *valDecl = getFunction()->getDeclRef().getDecl()) {
+    return llvm::isa<swift::AccessorDecl>(valDecl);
+  }
+  return false;
+}
+
+BridgedStringRef BridgedFunction::getAccessorName() const {
+  auto *accessorDecl  = llvm::cast<swift::AccessorDecl>(getFunction()->getDeclRef().getDecl());
+  return accessorKindName(accessorDecl->getAccessorKind());
+}
+
 bool BridgedFunction::hasOwnership() const { return getFunction()->hasOwnership(); }
 
 bool BridgedFunction::hasLoweredAddresses() const { return getFunction()->getModule().useLoweredAddresses(); }