RosettaCodeData/Task/First-class-environments/Sidef/first-class-environments.sidef

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func calculator({.is_one} ) { 1 }
func calculator(n {.is_even}) { n / 2 }
func calculator(n ) { 3*n + 1 }
func succ(this {_{:value}.is_one}, _) {
return this
}
func succ(this, get_next) {
this{:value} = get_next(this{:value})
this{:count}++
return this
}
var enviornments = (1..12 -> map {|i| Hash(value => i, count => 0) });
while (!enviornments.map{ _{:value} }.all { .is_one }) {
say enviornments.map {|h| "%4s" % h{:value} }.join;
enviornments.range.each { |i|
enviornments[i] = succ(enviornments[i], calculator);
}
}
say 'Counts';
say enviornments.map{ |h| "%4s" % h{:count} }.join;