[Distributed] Remove extraneous DistributedTargetInvocationArgumentDecoder

Author: xedin

stdlib/public/Distributed/DistributedActorSystem.swift

@@ -466,15 +466,6 @@ public protocol DistributedTargetInvocationDecoder {
   func decodeReturnType() throws -> Any.Type?
 }
 
-///
-/// It will be called exactly `N` times where `N` is the known number of arguments
-/// to the target invocation.
-@available(SwiftStdlib 5.6, *)
-public protocol DistributedTargetInvocationArgumentDecoder {
-
-
-}
-
 @available(SwiftStdlib 5.6, *)
 public protocol DistributedTargetInvocationResultHandler {
   associatedtype SerializationRequirement

test/Distributed/Inputs/FakeDistributedActorSystems.swift

@@ -121,10 +121,6 @@ public struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTar
   ) throws { /* ... */ }
   public func decodeReturnType() throws -> Any.Type? { nil }
   public func decodeErrorType() throws -> Any.Type? { nil }
-
-  public struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    public typealias SerializationRequirement = Codable
-  }
 }
 
 // ==== Fake Roundtrip Transport -----------------------------------------------

test/Distributed/Inputs/dynamic_replacement_da_decl.swift

@@ -100,16 +100,6 @@ struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvo
   ) throws { /* ... */ }
   func decodeReturnType() throws -> Any.Type? { nil }
   func decodeErrorType() throws -> Any.Type? { nil }
-
-  struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    typealias SerializationRequirement = Codable
-
-    // FIXME(distributed): should have 'Argument: SerializationRequirement'
-    mutating func decodeNext<Argument>(
-      _ argumentType: Argument.Type,
-      into pointer: UnsafeMutablePointer<Argument>
-    ) throws { }
-  }
 }
 
 @available(SwiftStdlib 5.5, *)

test/Distributed/Runtime/distributed_actor_decode.swift

@@ -119,10 +119,6 @@ struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvo
   ) throws { /* ... */ }
   func decodeReturnType() throws -> Any.Type? { nil }
   func decodeErrorType() throws -> Any.Type? { nil }
-
-  struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    typealias SerializationRequirement = Codable
-  }
 }
 
 @available(SwiftStdlib 5.5, *)

test/Distributed/Runtime/distributed_actor_deinit.swift

@@ -120,7 +120,6 @@ final class FakeActorSystem: @unchecked Sendable, DistributedActorSystem {
 }
 
 struct FakeDistributedInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvocationDecoder {
-  typealias  ArgumentDecoder = FakeDistributedTargetInvocationArgumentDecoder
   typealias SerializationRequirement = Codable
 
   mutating func recordGenericSubstitution<T>(_ type: T.Type) throws { }
@@ -148,10 +147,6 @@ struct FakeDistributedInvocation: DistributedTargetInvocationEncoder, Distribute
   }
 }
 
-struct FakeDistributedTargetInvocationArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-  typealias SerializationRequirement = Codable
-}
-
 typealias DefaultDistributedActorSystem = FakeActorSystem
 
 // ==== Execute ----------------------------------------------------------------

test/Distributed/Runtime/distributed_actor_init_local.swift

@@ -139,10 +139,6 @@ public struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTar
   ) throws { /* ... */ }
   public func decodeReturnType() throws -> Any.Type? { nil }
   public func decodeErrorType() throws -> Any.Type? { nil }
-
-  public struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    public typealias SerializationRequirement = Codable
-  }
 }
 
 typealias DefaultDistributedActorSystem = FakeActorSystem

test/Distributed/Runtime/distributed_actor_isRemote.swift

@@ -113,10 +113,6 @@ struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvo
   ) throws { /* ... */ }
   func decodeReturnType() throws -> Any.Type? { nil }
   func decodeErrorType() throws -> Any.Type? { nil }
-
-  struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    typealias SerializationRequirement = Codable
-  }
 }
 
 typealias DefaultDistributedActorSystem = FakeActorSystem

test/Distributed/Runtime/distributed_actor_local.swift

@@ -115,10 +115,6 @@ struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvo
   ) throws { /* ... */ }
   func decodeReturnType() throws -> Any.Type? { nil }
   func decodeErrorType() throws -> Any.Type? { nil }
-
-  struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    typealias SerializationRequirement = Codable
-  }
 }
 
 typealias DefaultDistributedActorSystem = FakeActorSystem

test/Distributed/Runtime/distributed_actor_remote_fieldsDontCrashDeinit.swift

@@ -128,10 +128,6 @@ struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvo
   ) throws { /* ... */ }
   func decodeReturnType() throws -> Any.Type? { nil }
   func decodeErrorType() throws -> Any.Type? { nil }
-
-  struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    typealias SerializationRequirement = Codable
-  }
 }
 
 typealias DefaultDistributedActorSystem = FakeActorSystem

test/Distributed/Runtime/distributed_actor_remote_functions.swift

@@ -219,10 +219,6 @@ struct FakeInvocation: DistributedTargetInvocationEncoder, DistributedTargetInvo
   ) throws { /* ... */ }
   func decodeReturnType() throws -> Any.Type? { nil }
   func decodeErrorType() throws -> Any.Type? { nil }
-
-  struct FakeArgumentDecoder: DistributedTargetInvocationArgumentDecoder {
-    typealias SerializationRequirement = Codable
-  }
 }
 
 @available(SwiftStdlib 5.5, *)