static IodineObject Filter(VirtualMachine vm, IodineObject self, IodineObject [] args)
{
if (args.Length == 0)
{
vm.RaiseException(new IodineArgumentException(1));
return(null);
}
var list = new IodineList(new IodineObject [] { });
var collection = self.GetIterator(vm);
IodineObject func = args [0];
collection.IterReset(vm);
while (collection.IterMoveNext(vm))
{
var o = collection.IterGetCurrent(vm);
if (func.Invoke(vm, new IodineObject [] { o }).IsTrue())
{
list.Add(o);
}
}
return(list);
}
static IodineObject Reduce(VirtualMachine vm, IodineObject self, IodineObject [] args)
{
if (args.Length == 0)
{
vm.RaiseException(new IodineArgumentException(1));
return(null);
}
var collection = self.GetIterator(vm);
IodineObject result = args.Length > 1 ? args [0] : null;
IodineObject func = args.Length > 1 ? args [1] : args [0];
collection.IterReset(vm);
while (collection.IterMoveNext(vm))
{
var o = collection.IterGetCurrent(vm);
if (result == null)
{
result = o;
}
result = func.Invoke(vm, new IodineObject [] { result, o });
}
return(result);
}
static IodineObject Last(VirtualMachine vm, IodineObject self, IodineObject [] args)
{
IodineObject returnObject = IodineNull.Instance;
if (args.Length > 0)
{
returnObject = args [0];
}
var iterator = self.GetIterator(vm);
iterator.IterReset(vm);
while (iterator.IterMoveNext(vm))
{
returnObject = iterator.IterGetCurrent(vm);
}
return(returnObject);
}
static IodineObject Each(VirtualMachine vm, IodineObject self, IodineObject [] args)
{
if (args.Length == 0)
{
vm.RaiseException(new IodineArgumentException(1));
return(null);
}
var iterator = self.GetIterator(vm);
iterator.IterReset(vm);
while (iterator.IterMoveNext(vm))
{
var obj = iterator.IterGetCurrent(vm);
args [0].Invoke(vm, new IodineObject [] { obj });
}
return(null);
}
