Add Sendable conformance

Sources/AnyCodable/AnyCodable.swift

@@ -12,13 +12,23 @@ import Foundation
  - SeeAlso: `AnyEncodable`
  - SeeAlso: `AnyDecodable`
  */
+#if compiler(>=5.6)
+@preconcurrency @frozen public struct AnyCodable: Codable, @unchecked Sendable {
+    public let value: Any
+
+    public init<T>(_ value: T?) {
+        self.value = value ?? ()
+    }
+}
+#else
 @frozen public struct AnyCodable: Codable {
     public let value: Any
 
     public init<T>(_ value: T?) {
         self.value = value ?? ()
     }
 }
+#endif
 
 extension AnyCodable: _AnyEncodable, _AnyDecodable {}
 

Sources/AnyCodable/AnyDecodable.swift

@@ -31,13 +31,23 @@ import Foundation
      let decoder = JSONDecoder()
      let dictionary = try! decoder.decode([String: AnyDecodable].self, from: json)
  */
+#if compiler(>=5.6)
+@preconcurrency @frozen public struct AnyDecodable: Decodable, @unchecked Sendable {
+    public let value: Any
+
+    public init<T>(_ value: T?) {
+        self.value = value ?? ()
+    }
+}
+#else
 @frozen public struct AnyDecodable: Decodable {
     public let value: Any
 
     public init<T>(_ value: T?) {
         self.value = value ?? ()
     }
 }
+#endif
 
 @usableFromInline
 protocol _AnyDecodable {

Sources/AnyCodable/AnyEncodable.swift

@@ -29,13 +29,23 @@ import Foundation
      let encoder = JSONEncoder()
      let json = try! encoder.encode(dictionary)
  */
+#if compiler(>=5.6)
+@preconcurrency @frozen public struct AnyEncodable: Encodable, @unchecked Sendable {
+    public let value: Any
+
+    public init<T>(_ value: T?) {
+        self.value = value ?? ()
+    }
+}
+#else
 @frozen public struct AnyEncodable: Encodable {
     public let value: Any
 
     public init<T>(_ value: T?) {
         self.value = value ?? ()
     }
 }
+#endif
 
 @usableFromInline
 protocol _AnyEncodable {