66 lines
1.8 KiB
Factor
66 lines
1.8 KiB
Factor
|
! Copyright (C) 2003, 2007 Slava Pestov.
|
||
|
|
! See http://factorcode.org/license.txt for BSD license.
|
||
|
|
USING: kernel vectors sequences hashtables
|
||
|
|
arrays kernel.private math strings assocs ;
|
||
|
|
IN: namespaces
|
||
|
|
|
||
|
|
<PRIVATE
|
||
|
|
|
||
|
|
: namestack* ( -- namestack )
|
||
|
|
0 getenv { vector } declare ; inline
|
||
|
|
|
||
|
|
: >n ( namespace -- ) namestack* push ;
|
||
|
|
: ndrop ( -- ) namestack* pop* ;
|
||
|
|
|
||
|
|
PRIVATE>
|
||
|
|
|
||
|
|
: namespace ( -- namespace ) namestack* peek ;
|
||
|
|
: namestack ( -- namestack ) namestack* clone ; inline
|
||
|
|
: set-namestack ( namestack -- ) >vector 0 setenv ; inline
|
||
|
|
: global ( -- g ) 21 getenv { hashtable } declare ; inline
|
||
|
|
: init-namespaces ( -- ) global 1array set-namestack ;
|
||
|
|
: get ( variable -- value ) namestack* assoc-stack ; flushable
|
||
|
|
: set ( value variable -- ) namespace set-at ;
|
||
|
|
: on ( variable -- ) t swap set ; inline
|
||
|
|
: off ( variable -- ) f swap set ; inline
|
||
|
|
: get-global ( variable -- value ) global at ; inline
|
||
|
|
: set-global ( value variable -- ) global set-at ; inline
|
||
|
|
|
||
|
|
: change ( variable quot -- )
|
||
|
|
>r dup get r> rot slip set ; inline
|
||
|
|
|
||
|
|
: +@ ( n variable -- ) [ 0 or + ] change ;
|
||
|
|
|
||
|
|
: inc ( variable -- ) 1 swap +@ ; inline
|
||
|
|
|
||
|
|
: dec ( variable -- ) -1 swap +@ ; inline
|
||
|
|
|
||
|
|
: bind ( ns quot -- ) swap >n call ndrop ; inline
|
||
|
|
|
||
|
|
: counter ( variable -- n ) global [ dup inc get ] bind ;
|
||
|
|
|
||
|
|
: make-assoc ( quot exemplar -- hash )
|
||
|
|
20 swap new-assoc [ >n call ndrop ] keep ; inline
|
||
|
|
|
||
|
|
: with-scope ( quot -- )
|
||
|
|
H{ } clone >n call ndrop ; inline
|
||
|
|
|
||
|
|
: with-variable ( value key quot -- )
|
||
|
|
>r associate >n r> call ndrop ; inline
|
||
|
|
|
||
|
|
! Building sequences
|
||
|
|
SYMBOL: building
|
||
|
|
|
||
|
|
: make ( quot exemplar -- seq )
|
||
|
|
[
|
||
|
|
[
|
||
|
|
1024 swap new-resizable [
|
||
|
|
building set call
|
||
|
|
] keep
|
||
|
|
] keep like
|
||
|
|
] with-scope ; inline
|
||
|
|
|
||
|
|
: , ( elt -- ) building get push ;
|
||
|
|
|
||
|
|
: % ( seq -- ) building get push-all ;
|