adaptive-tuple

Self optimizing tuple types. Adaptive tuples are tuple types in which the number of elements is determined at run-time. These structures are designed to combine the space-efficiency of tuples with the size flexibility of lists. Adaptive tuples provide lazy and strict, unpacked data structures for all tuple sizes from 0 to 20 elements. Adaptive tuples of more than 20 elements are allowed, however they are stored in an ordinary list.