(Swift) Transition from Crypt2.GetSignerCertChain to Crypt2.LastSignerCert

Provides instructions for replacing deprecated GetSignerCertChain method calls with LastSignerCert.

Note: This example requires Chilkat v11.0.0 or greater.

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func chilkatTest() {
    let crypt2 = CkoCrypt2()!

    // ...
    // ...
    var index: Int = 0

    // ------------------------------------------------------------------------
    // The GetSignerCertChain method is deprecated:

    var certchainObj: CkoCertChain? = crypt2.getSignerCertChain(index)
    if crypt2.lastMethodSuccess == false {
        print("\(crypt2.lastErrorText!)")
        return
    }

    // ...
    // ...

    certchainObj = nil

    // ------------------------------------------------------------------------
    // Do the equivalent using LastSignerCert, and then get the certificate chain from the cert.
    // Your application creates a new, empty Cert object which is passed 
    // in the last argument and filled upon success.

    let signerCert = CkoCert()!
    var success: Bool = crypt2.lastSignerCert(index, cert: signerCert)
    if success == false {
        print("\(crypt2.lastErrorText!)")
        return
    }

    let certChain = CkoCertChain()!
    success = signerCert.build(certChain)
    if success == false {
        print("\(signerCert.lastErrorText!)")
        return
    }


}