1 ! Copyright (C) 2009 Bruno Deferrari
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien.c-types arrays assocs destructors fry functors
4 kernel locals sequences serialize tokyo.alien.tcutil tokyo.utils vectors ;
5 IN: tokyo.assoc-functor
7 FUNCTOR: define-tokyo-assoc-api ( T N -- )
14 DBITERINIT IS ${T}iterinit
15 DBITERNEXT IS ${T}iternext
16 DBVANISH IS ${T}vanish
18 DBKEYS DEFINES tokyo-${N}-keys
20 TYPE DEFINES-CLASS tokyo-${N}
24 TUPLE: TYPE handle disposed ;
28 M: TYPE dispose* [ DBDEL f ] change-handle drop ;
30 M: TYPE at* ( key db -- value/f ? )
31 handle>> swap object>bytes dup length 0 int <ref>
32 DBGET [ [ memory>object ] [ tcfree ] bi t ] [ f f ] if* ;
34 M: TYPE assoc-size ( db -- size ) handle>> DBRNUM ;
36 : DBKEYS ( db -- keys )
37 [ assoc-size <vector> ] [ handle>> ] bi
38 dup DBITERINIT drop 0 int <ref>
39 [ 2dup DBITERNEXT dup ] [
40 [ memory>object ] [ tcfree ] bi
41 [ pick ] dip swap push
44 M: TYPE >alist ( db -- alist )
45 [ DBKEYS dup ] keep '[ dup _ at 2array ] map! drop ;
47 M: TYPE set-at ( value key db -- )
48 handle>> swap rot [ object>bytes dup length ] bi@ DBPUT drop ;
50 M: TYPE delete-at ( key db -- )
51 handle>> swap object>bytes dup length DBOUT drop ;
53 M: TYPE clear-assoc ( db -- ) handle>> DBVANISH drop ;
55 M: TYPE equal? assoc= ;
57 M: TYPE hashcode* assoc-hashcode ;