在Xtend中将包装器类转换为基本类型

Question

I have a for loop, in which I put Double values inside an array. Normally the values are from type double but as Xtend doesn't explicitly specify data types (and does this automatically) they are treaded as Double s.

I tried the following:

for (i : 0 ..< list.size) {
    array.set(i, list.get(i).myvalue as double);
}

But that doesn't seem to work, although no error occurs.

How can I cast Double to double or Double[] to double[] ?

Answer 1

You don't need to cast at all. The following compiles fine:

val double[] array = #[1d,2d]
val List<Double> list = #[1d,2d]
for (i : 0 ..< list.size) {
   array.set(i, list.get(i));
}

Casting though also works.