1 ! Copyright (C) 2004, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays definitions graphs kernel
4 kernel.private slots.private math namespaces sequences
5 strings vectors sbufs quotations assocs hashtables sorting vocabs
6 math.order sets words.private ;
9 : word ( -- word ) \ word get-global ;
11 : set-word ( word -- ) \ word set-global ;
13 M: word execute (execute) ;
15 M: word ?execute execute( -- value ) ; inline
18 [ [ name>> ] [ vocabulary>> ] bi 2array ] compare ;
20 M: word definer drop \ : \ ; ;
22 M: word definition def>> ;
26 PREDICATE: deferred < word ( obj -- ? )
27 def>> [ undefined ] = ;
28 M: deferred definer drop \ DEFER: f ;
29 M: deferred definition drop f ;
31 PREDICATE: primitive < word ( obj -- ? )
32 [ def>> [ do-primitive ] tail? ]
33 [ sub-primitive>> >boolean ]
35 M: primitive definer drop \ PRIMITIVE: f ;
36 M: primitive definition drop f ;
38 : word-prop ( word name -- value ) swap props>> at ;
40 : remove-word-prop ( word name -- ) swap props>> delete-at ;
42 : set-word-prop ( word value name -- )
44 [ pick props>> ?set-at >>props drop ]
45 [ nip remove-word-prop ] if ;
47 : reset-props ( word seq -- ) [ remove-word-prop ] with each ;
49 : lookup ( name vocab -- word ) vocab-words at ;
51 : target-word ( word -- target )
52 [ name>> ] [ vocabulary>> ] bi lookup ;
54 SYMBOL: bootstrapping?
56 : if-bootstrapping ( true false -- )
57 [ bootstrapping? get ] 2dip if ; inline
59 : bootstrap-word ( word -- target )
60 [ target-word ] [ ] if-bootstrapping ;
62 GENERIC: crossref? ( word -- ? )
65 dup "forgotten" word-prop [ drop f ] [ vocabulary>> >boolean ] if ;
67 SYMBOL: compiled-crossref
69 compiled-crossref [ H{ } clone ] initialize
71 SYMBOL: compiled-generic-crossref
73 compiled-generic-crossref [ H{ } clone ] initialize
75 : (compiled-xref) ( word dependencies word-prop variable -- )
76 [ [ set-word-prop ] curry ]
77 [ [ get add-vertex* ] curry ]
80 : compiled-xref ( word dependencies generic-dependencies -- )
81 [ [ drop crossref? ] { } assoc-filter-as f like ] bi@
82 [ "compiled-uses" compiled-crossref (compiled-xref) ]
83 [ "compiled-generic-uses" compiled-generic-crossref (compiled-xref) ]
86 : (compiled-unxref) ( word word-prop variable -- )
87 [ [ [ dupd word-prop ] dip get remove-vertex* ] 2curry ]
88 [ drop [ remove-word-prop ] curry ]
91 : compiled-unxref ( word -- )
92 [ "compiled-uses" compiled-crossref (compiled-unxref) ]
93 [ "compiled-generic-uses" compiled-generic-crossref (compiled-unxref) ]
96 : delete-compiled-xref ( word -- )
98 [ compiled-crossref get delete-at ]
99 [ compiled-generic-crossref get delete-at ]
102 : inline? ( word -- ? ) "inline" word-prop ; inline
104 GENERIC: subwords ( word -- seq )
106 M: word subwords drop f ;
108 : define ( word def -- )
109 over changed-definition [ ] like >>def drop ;
111 : changed-effect ( word -- )
112 [ dup changed-effects get set-in-unit ]
113 [ dup primitive? [ drop ] [ changed-definition ] if ] bi ;
115 : set-stack-effect ( effect word -- )
116 2dup "declared-effect" word-prop = [ 2drop ] [
117 [ nip changed-effect ]
118 [ nip subwords [ changed-effect ] each ]
119 [ swap "declared-effect" set-word-prop ]
123 : define-declared ( word def effect -- )
124 [ nip swap set-stack-effect ] [ drop define ] 3bi ;
126 : make-deprecated ( word -- )
127 t "deprecated" set-word-prop ;
129 : make-inline ( word -- )
130 dup inline? [ drop ] [
131 [ t "inline" set-word-prop ]
136 : make-recursive ( word -- )
137 t "recursive" set-word-prop ;
139 : make-flushable ( word -- )
140 t "flushable" set-word-prop ;
142 : make-foldable ( word -- )
143 dup make-flushable t "foldable" set-word-prop ;
145 : define-inline ( word def effect -- )
146 [ define-declared ] [ 2drop make-inline ] 3bi ;
148 GENERIC: reset-word ( word -- )
152 "unannotated-def" "parsing" "inline" "recursive"
153 "foldable" "flushable" "reading" "writing" "reader"
154 "writer" "delimiter" "deprecated"
157 : reset-generic ( word -- )
158 [ subwords forget-all ]
172 : <word> ( name vocab -- word )
173 2dup [ hashcode ] bi@ bitxor >fixnum (word) ;
176 "( gensym )" f \ gensym counter >fixnum (word) ;
178 : define-temp ( quot effect -- word )
179 [ gensym dup ] 2dip define-declared ;
182 dup [ name>> ] [ vocabulary>> ] bi dup vocab-words
186 ERROR: bad-create name vocab ;
188 : check-create ( name vocab -- name vocab )
189 2dup [ string? ] [ [ string? ] [ vocab? ] bi or ] bi* and
190 [ bad-create ] unless ;
192 : create ( name vocab -- word )
193 check-create 2dup lookup
194 dup [ 2nip ] [ drop vocab-name <word> dup reveal ] if ;
196 : constructor-word ( name vocab -- word )
197 [ "<" ">" surround ] dip create ;
199 PREDICATE: parsing-word < word "parsing" word-prop ;
201 M: parsing-word definer drop \ SYNTAX: \ ; ;
203 : define-syntax ( word quot -- )
204 [ drop ] [ define ] 2bi t "parsing" set-word-prop ;
206 : delimiter? ( obj -- ? )
207 dup word? [ "delimiter" word-prop ] [ drop f ] if ;
209 : deprecated? ( obj -- ? )
210 dup word? [ "deprecated" word-prop ] [ drop f ] if ;
212 ! Definition protocol
213 M: word where "loc" word-prop ;
215 M: word set-where swap "loc" set-word-prop ;
218 dup "forgotten" word-prop [ drop ] [
219 [ [ name>> ] [ vocabulary>> vocab-words ] bi delete-at ]
220 [ t "forgotten" set-word-prop ]
225 nip 1 slot { fixnum } declare ; inline foldable
227 M: word literalize <wrapper> ;
229 INSTANCE: word definition