function - Can i have different return type in kotlin? -


for example let's call function this:

val call1: string = myfunction() 

or

val call2: int = myfunction() 

how can let function decide return in fonction of call , not function ? should return type ? ? unit ? ?

i don't know if it's clear here example on i'm working on:

i have line:

var query: query = firebasedatabase.getinstance().reference.child(path) 

here query if that:

var query = firebasedatabase.getinstance().reference.child(path) 

i'll databasereference

so i'm trying either query or databasereference according call of function , not function.

you can kind of fake it. in java it's feasible write method this:

public <t> t foo(class<t> clazz) { /* stuff */ } 

that returns different things based on class pass in.

you'll still want have heavy lifting, can make interface bit nicer:

interface interface {} class clazz() : interface {} class clbzz() : interface {} fun <t: interface> foo(clazz: kclass<t>) : t { /* return t */ } inline fun <reified t: interface> foo() : t { return foo(t::class) }  val =  foo<clazz>() val b : clbzz = foo() 

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