Position nested types and initializers on top (#355)

Position nested types and constructors on top in the parent types.

Author: dkovba

vminitd/Sources/vminitd/ManagedProcess.swift

@@ -25,17 +25,16 @@ import Logging
 import Synchronization
 
 final class ManagedProcess: Sendable {
-    let id: String
-
-    private let log: Logger
-    private let command: Command
-    private let state: Mutex<State>
-    private let owningPid: Int32?
-    private let ackPipe: Pipe
-    private let syncPipe: Pipe
-    private let terminal: Bool
-    private let bundle: ContainerizationOCI.Bundle
-    private let cgroupManager: Cgroup2Manager?
+    // swiftlint: disable type_name
+    protocol IO {
+        func attach(pid: Int32, fd: Int32) throws
+        func start(process: inout Command) throws
+        func resize(size: Terminal.Size) throws
+        func close() throws
+        func closeStdin() throws
+        func closeAfterExec() throws
+    }
+    // swiftlint: enable type_name
 
     struct ExitStatus {
         var exitStatus: Int32
@@ -53,26 +52,27 @@ final class ManagedProcess: Sendable {
         var pid: Int32 = 0
     }
 
+    private static let ackPid = "AckPid"
+    private static let ackConsole = "AckConsole"
+
+    let id: String
+
+    private let log: Logger
+    private let command: Command
+    private let state: Mutex<State>
+    private let owningPid: Int32?
+    private let ackPipe: Pipe
+    private let syncPipe: Pipe
+    private let terminal: Bool
+    private let bundle: ContainerizationOCI.Bundle
+    private let cgroupManager: Cgroup2Manager?
+
     var pid: Int32 {
         self.state.withLock {
             $0.pid
         }
     }
 
-    // swiftlint: disable type_name
-    protocol IO {
-        func attach(pid: Int32, fd: Int32) throws
-        func start(process: inout Command) throws
-        func resize(size: Terminal.Size) throws
-        func close() throws
-        func closeStdin() throws
-        func closeAfterExec() throws
-    }
-    // swiftlint: enable type_name
-
-    private static let ackPid = "AckPid"
-    private static let ackConsole = "AckConsole"
-
     init(
         id: String,
         stdio: HostStdio,

vminitd/Sources/vminitd/OSFile.swift

@@ -17,8 +17,6 @@
 import Foundation
 
 struct OSFile: Sendable {
-    private let fd: Int32
-
     enum IOAction: Equatable {
         case eof
         case again
@@ -27,6 +25,8 @@ struct OSFile: Sendable {
         case error(_ errno: Int32)
     }
 
+    private let fd: Int32
+
     var closed: Bool {
         Foundation.fcntl(fd, F_GETFD) == -1 && errno == EBADF
     }

vminitd/Sources/vminitd/Server.swift

@@ -22,10 +22,6 @@ import NIOCore
 import NIOPosix
 
 final class Initd: Sendable {
-    let log: Logger
-    let state: State
-    let group: EventLoopGroup
-
     actor State {
         var containers: [String: ManagedContainer] = [:]
         var proxies: [String: VsockProxy] = [:]
@@ -80,6 +76,10 @@ final class Initd: Sendable {
         }
     }
 
+    let log: Logger
+    let state: State
+    let group: EventLoopGroup
+
     init(log: Logger, group: EventLoopGroup) {
         self.log = log
         self.group = group

vminitd/Sources/vminitd/VsockProxy.swift

@@ -30,6 +30,16 @@ actor VsockProxy {
         case vsock
     }
 
+    public let id: String
+    private let path: URL
+    private let action: Action
+    private let port: UInt32
+    private let udsPerms: UInt32?
+    private let log: Logger?
+
+    private var listener: Socket?
+    private var task: Task<(), Never>?
+
     init(
         id: String,
         action: Action,
@@ -45,16 +55,6 @@ actor VsockProxy {
         self.udsPerms = udsPerms
         self.log = log
     }
-
-    public let id: String
-    private let path: URL
-    private let action: Action
-    private let port: UInt32
-    private let udsPerms: UInt32?
-    private let log: Logger?
-
-    private var listener: Socket?
-    private var task: Task<(), Never>?
 }
 
 extension VsockProxy {