Vocabulary
persistent.hashtables.nodes

Definition


Methods

M:: full-node (entry-at) ( key hashcode full-node -- entry )
key hashcode hashcode full-node shift>> mask
full-node nodes>> nth-unsafe (entry-at) ;



M:: full-node (new-at)
( shift value key hashcode full-node -- node' added-leaf )
full-node nodes>> :> nodes hashcode full-node shift>> mask
:> idx idx nodes nth-unsafe :> n shift radix-bits +
value key hashcode n (new-at) :> ( n' new-leaf ) n n' eq?
[ full-node ] [ n' idx nodes new-nth shift <full-node> ] if
new-leaf ;



M:: full-node (pluck-at) ( key hashcode full-node -- node' )
hashcode full-node shift>> mask
:> idx idx full-node nodes>> nth
:> n key hashcode n (pluck-at) :> n' n n' eq?
[ full-node ] [
n' [
n' idx full-node nodes>> new-nth
full-node shift>> <full-node>
] [
hashcode full-node shift>> bitpos
bitnot full-bitmap-mask bitand
idx full-node nodes>> remove-nth
full-node shift>> <bitmap-node>
] if
] if ;