42 lines
1.1 KiB
Factor
42 lines
1.1 KiB
Factor
! Copyright (C) 2008 Slava Pestov, James Cash.
|
|
! See http://factorcode.org/license.txt for BSD license.
|
|
USING: accessors assocs arrays kernel deques dlists sequences fry ;
|
|
IN: linked-assocs
|
|
|
|
TUPLE: linked-assoc assoc dlist ;
|
|
|
|
: <linked-assoc> ( exemplar -- assoc )
|
|
0 swap new-assoc <dlist> linked-assoc boa ;
|
|
|
|
: <linked-hash> ( -- assoc )
|
|
H{ } <linked-assoc> ;
|
|
|
|
M: linked-assoc assoc-size assoc>> assoc-size ;
|
|
|
|
M: linked-assoc at* assoc>> at* [ [ obj>> second ] when ] keep ;
|
|
|
|
M: linked-assoc delete-at
|
|
[ [ assoc>> ] [ dlist>> ] bi [ at ] dip '[ _ delete-node ] when* ]
|
|
[ assoc>> delete-at ] 2bi ;
|
|
|
|
<PRIVATE
|
|
: add-to-dlist ( value key lassoc -- node )
|
|
[ swap 2array ] dip dlist>> push-back* ;
|
|
PRIVATE>
|
|
|
|
M: linked-assoc set-at
|
|
[ 2dup assoc>> key? [ 2dup delete-at ] when add-to-dlist ] 2keep
|
|
assoc>> set-at ;
|
|
|
|
M: linked-assoc >alist
|
|
dlist>> dlist>seq ;
|
|
|
|
M: linked-assoc clear-assoc
|
|
[ assoc>> clear-assoc ] [ dlist>> clear-deque ] bi ;
|
|
|
|
M: linked-assoc clone
|
|
[ assoc>> clone ] [ dlist>> clone ] bi
|
|
linked-assoc boa ;
|
|
|
|
INSTANCE: linked-assoc assoc
|