Added missing documentation to the source code in the Playdate bindings target.

Sources/PlaydateKit/Network/Classes/HTTPConnection.swift

@@ -1,9 +1,14 @@
 internal import CPlaydate
 
+/// The cached `playdate->network->http` C API table.
 private var httpAPI: UnsafePointer<playdate_http> { Playdate.httpAPI.unsafelyUnwrapped }
 
 extension Network {
     /// An HTTP connection to a server. Wraps `HTTPConnection`.
+    ///
+    /// The binding stores a back-reference to each wrapper in the
+    /// underlying object's userdata slot so callbacks can recover the
+    /// wrapper; the C userdata slot is therefore reserved by the binding.
     public final class HTTPConnection {
         let pointer: OpaquePointer
 

Sources/PlaydateKit/Network/Classes/TCPConnection.swift

@@ -1,9 +1,14 @@
 internal import CPlaydate
 
+/// The cached `playdate->network->tcp` C API table.
 private var tcpAPI: UnsafePointer<playdate_tcp> { Playdate.tcpAPI.unsafelyUnwrapped }
 
 extension Network {
     /// A TCP connection to a server. Wraps `TCPConnection`.
+    ///
+    /// The binding stores a back-reference to each wrapper in the
+    /// underlying object's userdata slot so callbacks can recover the
+    /// wrapper; the C userdata slot is therefore reserved by the binding.
     public final class TCPConnection {
         let pointer: OpaquePointer
 

Sources/PlaydateKit/Network/Enumerations/NetError.swift

@@ -21,8 +21,11 @@ extension Network {
         case notConnectedToAP = -16
         case notImplemented = -17
         case connectionClosed = -18
+        /// An error code not covered by `PDNetErr`.
         case unknown = 1
 
+        /// Creates an error from the C code, or `.unknown` for
+        /// unrecognized codes.
         init(_ error: PDNetErr) {
             self = NetError(rawValue: Int32(error.rawValue)) ?? .unknown
         }

Sources/PlaydateKit/Network/Network.swift

@@ -1,5 +1,6 @@
 internal import CPlaydate
 
+/// The cached `playdate->network` C API table.
 private var networkAPI: UnsafePointer<playdate_network> { Playdate.networkAPI.unsafelyUnwrapped }
 
 /// The network API: wifi status, HTTP, and TCP.
@@ -18,6 +19,7 @@ extension Network {
         error == NET_OK ? nil : NetError(error)
     }
 
+    /// The device's current wifi status.
     public static var status: WifiStatus {
         WifiStatus(rawValue: UInt32(networkAPI.pointee.getStatus.unsafelyUnwrapped().rawValue)) ?? .notConnected
     }