Lambda expressions with returns

[angelolloqui]

Kotlin does not use return statements inside lambdas in the same way than Swift. In Kotlin, the last expression is automatically returned, and the return expression is invalid unless used with return@<function_name>.

Examples:

ints.map { return "test" }

Should just be

ints.map { "test" }

And returns inside the body like:

ints.map {
   if $0 == 0 {
        return "zero"
   } 
   return "non zero"
}

ints.map {
   if (it == 0) {
        return@map "zero"
   } 
   "non zero"
}

[angelolloqui]

Implemented with 2a78f48