cloudkit 0.3.5

Safe Rust bindings for Apple's CloudKit framework — iCloud databases and sync on macOS
Documentation 
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import CloudKit
import Foundation

struct CKServerChangeTokenPayload: Codable {
    var archivedData: [UInt8]
}

struct CKQueryCursorPayload: Codable {
    var archivedData: [UInt8]
}

func ckEncodeServerChangeToken(_ token: CKServerChangeToken) -> CKServerChangeTokenPayload {
    CKServerChangeTokenPayload(archivedData: (try? ckArchiveSecureCoding(token)) ?? [])
}

func ckDecodeServerChangeToken(_ payload: CKServerChangeTokenPayload) throws -> CKServerChangeToken {
    try ckDecodeSecureCodingObject(payload.archivedData, as: CKServerChangeToken.self)
}

func ckEncodeQueryCursor(_ cursor: CKQueryOperation.Cursor) -> CKQueryCursorPayload {
    CKQueryCursorPayload(archivedData: (try? ckArchiveSecureCoding(cursor)) ?? [])
}