How do I implement two way generator with kotlin c...

# coroutines

[Luis Munoz]

How do I implement two way generator with kotlin coroutines?

For example in javascript you would do:

function* generatorFunction(i) {
   yield i
   yield i +1
}

let gen = generator(5)
gen.next() //  value=5, done=false
gen.next() //  value=6, done=false
// WHAT I WANT IS THIS
gen.next(100) // <-- here I pass value and get back another value at next yield point

so in generator
it would be let x = yield i to get the input value

[octylFractal]

https://github.com/Kotlin/coroutines-examples/blob/master/examples/generator/generator.kt

[Luis Munoz]

thank you

[Luis Munoz]

generate<String, ByteBuffer> {

val result = parse() // ERROR
// Doesn't let me call suspend function something about
// @RestrictsSuspension
yield(result)
}

[Luis Munoz]

@octylFractal do you how I can call other suspend functions inside the generate?

[octylFractal]

yes, this is restricted like a sequence because there's no scope

[Luis Munoz]

so I can't call another suspend function?

[octylFractal]

I don't really have a fix for it, you'd have to introduce something more Flow-like

[Luis Munoz]

or can I extend

[araqnid]

you can call another suspend function only if it is defined as an extension of GeneratorBuilder — i.e. that will only suspend on yield

[Luis Munoz]

changing methods to suspend fun GeneratorBuilder<String, ByteBuffer>.parse() seems to work, thanks @araqnid