is there a trick to overcome clashing function signatures with different returns values?

fun TfFile.cert_request(configure: CertRequest.() -> Unit): CertRequest

fun TfFile.cert_request(configure: CertRequest.() -> Unit): PropertyDelegateProvider<Any?, ReadOnlyProperty<Any?, CertRequest>>

@JvmName

works only for case like

List<String

and

List<Int

and

@OverloadResolutionByLambdaReturnType

only with lambdas returning different values

Compiler problems aside, how would you expect people to understand which function is called?

cert_request { }
            val a by cert_request { }

if I make use of delegation or not

In the case where you don't use it with

by

, how do you know which one it is?

ok

How about implementing an

operator fun CertRequest.provideDelegate

? Could that do the trick?

I played with the

provideDelegate

, but I didn't have any luck 😕

Is there a specific reason why it didn't work? Whenever a property is delegated to a

CertRequest

the `provideDelegate`method should be called automatically, allowing you to do whatever you want. In fact, you can take the current method which returns a Delegate provider and instead make it return its delegate in

CertRequest.provideDelegate

ok, let's give it a try, why

CertRequest.provideDelegate

? I need as owner

TfFile

(I have to add this

CertRequest

instance to a list inside

TfFile

)

Well, is there different logic between a normal CertRequest and one that's inside a property delegate?

no

If there is a difference, then you need this:

context(TfFile)
operator fun CertRequest.provideDelegate(...): ReadOnlyProperty<...> {
    this@TfFile.removeCert(this)
    this@TfFile.addCert(generateNewCert())
    return ReadOnlyProperty<...> {...}
}

I'd like to use the variable name though

val a by cert_request

, in this case

a

and save it inside

CertRequest

Is CertRequest modifiable after creation? If so:

operator fun CertRequest.provideDelegate(...): CertRequest= this.apply {
    this.myName = property.name
}
operator fun CertRequest.getValue(...): CertRequest = this

I can make it modifiable

If you wanna keep it not modifiable though, it is a bit more awkward but you can do something like this:

context(TfFile)
operator fun CertRequest.provideDelegate(...): CertRequest = this.copy(name = property.name).also {
    this@TfFile.removeCertificate(this)
    this@TfFile.addCertificate(it)
} 
operator fun CertRequest.getValue(...): CertRequest = this

But yes I'd suggest to just make it modifiable to make it easier

so, I have the following, how the

by cert_request

is supposed to call

CertRequest.provideDelegate

? Because it's always being redirected to

TfFile.cert_request

No I meant exactly what is in the gist. Does it not work as expected?

wait

Yep exactly! No problem at all, glad I could help!