Lambdas

Marcel supports lambda expressions, but note that they are not compiled to Java lambdas, they are compiled to anonymous classes instead.

Lambda are declared like Kotlin's, and Groovy closures. They can be used for any functional interfaces, such as Runnable, Supplier...

Lambdas with no parameters

Lambda0 l0 = {
  
}

If you don't specify any parameter, an implicit Object it parameter will be declared.

Lambda0 l1 = {
  println(it)
}

Or you can explicitly declare it yourself, specifying the type

Lambda1 l1 = { Integer p0 ->
  println(p0)
}

You have to declare explicitly all parameters, separated by a comma

Lambda3 l3 = { Integer foo, Long bar, String zoo ->
  // do something
}