static public PersistentVector create(ISeq items)
{
Object[] arr = new Object[32];
int i = 0;
for (; items != null && i < 32; items = items.next())
{
arr[i++] = items.first();
}
if (items != null)
{
// >32, construct with array directly
PersistentVector start = new PersistentVector(32, 5, EmptyNode, arr);
TransientVector ret = (TransientVector)start.asTransient();
for (; items != null; items = items.next())
{
ret = (TransientVector)ret.conj(items.first());
}
return((PersistentVector)ret.persistent());
}
else if (i == 32)
{
// exactly 32, skip copy
return(new PersistentVector(32, 5, EmptyNode, arr));
}
else
{
// <32, copy to minimum array and construct
Object[] arr2 = new Object[i];
Array.Copy(arr, 0, arr2, 0, i);
return(new PersistentVector(i, 5, EmptyNode, arr2));
}
}
static public PersistentVector create(IReduceInit items)
{
TransientVector ret = (TransientVector)EMPTY.asTransient();
items.reduce(_transientVectorConj, ret);
return((PersistentVector)ret.persistent());
}
