updates

Author: elsh

Sources/SwiftParser/Declarations.swift

@@ -21,7 +21,7 @@ extension DeclarationModifier {
       .nonmutating, .optional, .override, .postfix, .prefix, .reasync,
       .required, .rethrows, .staticKeyword, .weak:
       return false
-    case .fileprivateKeyword, .internalKeyword, .open, .privateKeyword,
+    case .fileprivateKeyword, .internalKeyword, .package, .open, .privateKeyword,
       .publicKeyword, .unowned:
       return true
     }

Sources/SwiftParser/Modifiers.swift

@@ -24,6 +24,8 @@ extension Parser {
         (.internalKeyword, _)?,
         (.publicKeyword, _)?:
         elements.append(parseAccessLevelModifier())
+      case (.package, _)?:
+        elements.append(parsePackageAccessLevelModifier())
       case (.open, _)?:
         elements.append(parseOpenAccessLevelModifier())
       case (.staticKeyword, let handle)?:
@@ -129,6 +131,17 @@ extension Parser {
     )
   }
 
+  mutating func parsePackageAccessLevelModifier() -> RawDeclModifierSyntax {
+    let (unexpectedBeforeName, name) = self.expectContextualKeyword("package")
+    let details = self.parseAccessModifierDetails()
+    return RawDeclModifierSyntax(
+      unexpectedBeforeName,
+      name: name,
+      detail: details,
+      arena: self.arena
+    )
+  }
+
   mutating func parseOpenAccessLevelModifier() -> RawDeclModifierSyntax {
     let (unexpectedBeforeName, name) = self.expectContextualKeyword("open")
     let details = self.parseAccessModifierDetails()

Sources/SwiftParser/RawTokenKindSubset.swift

@@ -201,6 +201,7 @@ enum ContextualDeclKeyword: SyntaxText, ContextualKeywords {
   case mutating = "mutating"
   case nonisolated = "nonisolated"
   case nonmutating = "nonmutating"
+  case package = "package"
   case open = "open"
   case optional = "optional"
   case override = "override"