As an experiment to become more familiar with nice, I decided to try
to build a new forIterator method for maps that allows you to iterate
over a tuple of key values. The forIterator looks like the following,
and works fine:
<K,V> Iterator<(K,V)> forIterator(Map<K,V> map){
let entries = map.entrySet().iterator();
return (() => {
if(entries.hasNext()){
let entry = entries.next();
return (entry.getKey(),entry.getValue());
}
return stop();
}).iterator();
}
However to use the forIterator, I had to place a temporary variable as
the item in the for statement, then pull the values out inside the
loop.
void main(String[] args){
Map<String,String> mapdata = listToMap([
("test1","Bla1"),
("test2","Bla2")
]);
//This works
for(entry :mapdata){
(String key, String value) = entry;
println("Map Iteration Test:" key "=" value);
}
//Doesn't compile
for((String key, String value):mapdata)
println("Map Iteration Test:" key "=" value);
}
Is this a bug, or is there another way to express this without the
temp variable?
Thanks
Dan
BTW: I haven't been able to get buy in to start using nice, but it is
indeed a very nice language to play with
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