// -----------------------------------------------------------------------------
// for..in

sum := 0
for x in [1, 3, 5, 7, 11, 13, 17] if x > 3 {
	sum += x
}
println("sum(5,7,11,13,17):", sum)

fns := make([]func() int, 3)
for i, x in [3, 15, 777] {
	v := x
	fns[i] = func() int {
		return v
	}
}
println("values:", fns[0](), fns[1](), fns[2]())

// -----------------------------------------------------------------------------
// for with range with define tok (k,v := range x)

sum = 0
for _, x := range [1, 3, 5, 7, 11, 13, 17] {
	if x > 3 {
		sum += x
	}
}
println("sum(5,7,11,13,17):", sum)

sum = 0
for i, x := range [3, 15, 777] {
	v := x
	fns[i] = func() int {
		return v
	}
}
println("values:", fns[0](), fns[1](), fns[2]())

// -----------------------------------------------------------------------------
// for with range with assign tok (k,v = range x)

sum = 0
x := 0
for _, x = range [1, 3, 5, 7, 11, 13, 17] {
	if x > 3 {
		sum += x
	}
}
println("x:", x, x == 17)
println("sum(5,7,11,13,17):", sum)

// -----------------------------------------------------------------------------
// normal for

sum = 0
arr := [1, 3, 5, 7, 11, 13, 17]
i := 10
for i = 0; i < len(arr); i++ {
	if arr[i] > 3 {
		sum += arr[i]
	}
}
println("sum(5,7,11,13,17):", sum)

/* TODO:
arr = [3, 15, 777]
sum = 0
for i = 0; i < len(arr); i++ {
	v := arr[i]
	fns[i] = func() int {
		return v
	}
}
println("values:", fns[0](), fns[1](), fns[2]())
*/

// -----------------------------------------------------------------------------