Replace PathCopyingPersistentTreeMap hash and size calculation#36

Open

Druidos wants to merge 2 commits intososy-lab:mainfrom Druidos:performance_fix_of_PathCopyingPersistentTreeMap

Commits on Mar 1, 2021

Replace PathCopyingPersistentTreeMap hash and size calculation from lazy linear algorithm to pre-calculations, which is efficient for public copying methods
Druidos
committed

Commits on Mar 2, 2021

Compute PathCopyingPersistentTreeMap hash and size on public copying methods instead of lazy linear algorithm
Druidos
committed