1 ! Copyright (C) 2004, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays definitions graphs assocs kernel
4 kernel.private slots.private math namespaces sequences strings
5 vectors sbufs quotations assocs hashtables sorting words.private
6 vocabs math.order sets ;
9 : word ( -- word ) \ word get-global ;
11 : set-word ( word -- ) \ word set-global ;
13 GENERIC: execute ( word -- )
15 M: word execute (execute) ;
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: symbol < word ( obj -- ? )
32 [ def>> ] [ [ ] curry ] bi sequence= ;
33 M: symbol definer drop \ SYMBOL: f ;
34 M: symbol definition drop f ;
36 PREDICATE: primitive < word ( obj -- ? )
37 def>> [ do-primitive ] tail? ;
38 M: primitive definer drop \ PRIMITIVE: f ;
39 M: primitive definition drop f ;
41 : word-prop ( word name -- value ) swap props>> at ;
43 : remove-word-prop ( word name -- ) swap props>> delete-at ;
45 : set-word-prop ( word value name -- )
47 [ pick props>> ?set-at >>props drop ]
48 [ nip remove-word-prop ] if ;
50 : reset-props ( word seq -- ) [ remove-word-prop ] with each ;
52 : lookup ( name vocab -- word ) vocab-words at ;
54 : target-word ( word -- target )
55 [ name>> ] [ vocabulary>> ] bi lookup ;
57 SYMBOL: bootstrapping?
59 : if-bootstrapping ( true false -- )
60 bootstrapping? get -rot if ; inline
62 : bootstrap-word ( word -- target )
63 [ target-word ] [ ] if-bootstrapping ;
65 GENERIC: crossref? ( word -- ? )
68 dup "forgotten" word-prop [
74 GENERIC: compiled-crossref? ( word -- ? )
76 M: word compiled-crossref? crossref? ;
78 GENERIC# (quot-uses) 1 ( obj assoc -- )
80 M: object (quot-uses) 2drop ;
82 M: word (quot-uses) over crossref? [ conjoin ] [ 2drop ] if ;
84 : seq-uses ( seq assoc -- ) [ (quot-uses) ] curry each ;
86 M: array (quot-uses) seq-uses ;
88 M: callable (quot-uses) seq-uses ;
90 M: wrapper (quot-uses) >r wrapped>> r> (quot-uses) ;
92 : quot-uses ( quot -- assoc )
93 global [ H{ } clone [ (quot-uses) ] keep ] bind ;
95 M: word uses ( word -- seq )
96 def>> quot-uses keys ;
98 SYMBOL: compiled-crossref
100 compiled-crossref global [ H{ } assoc-like ] change-at
102 : compiled-xref ( word dependencies -- )
103 [ drop crossref? ] assoc-filter
104 [ "compiled-uses" set-word-prop ]
105 [ compiled-crossref get add-vertex* ]
108 : compiled-unxref ( word -- )
110 dup "compiled-uses" word-prop
111 compiled-crossref get remove-vertex*
113 [ f "compiled-uses" set-word-prop ] bi ;
115 : delete-compiled-xref ( word -- )
117 compiled-crossref get delete-at ;
119 : compiled-usage ( word -- assoc )
120 compiled-crossref get at ;
122 : compiled-usages ( assoc -- seq )
126 [ compiled-usage ] dip
128 [ nip +inlined+ eq? ] assoc-filter
134 GENERIC: redefined ( word -- )
136 M: object redefined drop ;
138 : define ( word def -- )
143 dup +inlined+ changed-definition
144 dup crossref? [ dup xref ] when drop ;
146 : set-stack-effect ( effect word -- )
147 2dup "declared-effect" word-prop = [ 2drop ] [
149 [ "declared-effect" set-word-prop ]
152 dup primitive? [ drop ] [
153 [ redefined ] [ +inlined+ changed-definition ] bi
158 : define-declared ( word def effect -- )
159 pick swap "declared-effect" set-word-prop
162 : make-inline ( word -- )
163 t "inline" set-word-prop ;
165 : make-flushable ( word -- )
166 t "flushable" set-word-prop ;
168 : make-foldable ( word -- )
169 dup make-flushable t "foldable" set-word-prop ;
171 : define-inline ( word quot -- )
172 dupd define make-inline ;
174 : define-symbol ( word -- )
175 dup [ ] curry define-inline ;
177 GENERIC: reset-word ( word -- )
182 "parsing" "inline" "foldable" "flushable"
186 "declared-effect" "constructor-quot" "delimiter"
189 GENERIC: subwords ( word -- seq )
191 M: word subwords drop f ;
193 : reset-generic ( word -- )
194 [ subwords forget-all ]
196 [ { "methods" "combination" "default-method" } reset-props ]
200 "( gensym )" f <word> ;
202 : define-temp ( quot -- word )
203 gensym dup rot define ;
206 dup [ name>> ] [ vocabulary>> ] bi dup vocab-words
210 ERROR: bad-create name vocab ;
212 : check-create ( name vocab -- name vocab )
213 2dup [ string? ] both?
214 [ bad-create ] unless ;
216 : create ( name vocab -- word )
217 check-create 2dup lookup
218 dup [ 2nip ] [ drop <word> dup reveal ] if ;
220 : constructor-word ( name vocab -- word )
221 >r "<" swap ">" 3append r> create ;
223 PREDICATE: parsing-word < word "parsing" word-prop ;
225 : delimiter? ( obj -- ? )
226 dup word? [ "delimiter" word-prop ] [ drop f ] if ;
228 ! Definition protocol
229 M: word where "loc" word-prop ;
231 M: word set-where swap "loc" set-word-prop ;
234 dup "forgotten" word-prop [ drop ] [
236 [ [ name>> ] [ vocabulary>> vocab-words ] bi delete-at ]
237 [ t "forgotten" set-word-prop ]
242 nip 1 slot { fixnum } declare ;
244 M: word literalize <wrapper> ;
246 : ?word-name ( word -- name ) dup word? [ name>> ] when ;
248 : xref-words ( -- ) all-words [ xref ] each ;