1 ! Copyright (C) 2009, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien.c-types arrays assocs classes
4 classes.algebra classes.tuple combinators.short-circuit fry
5 generic kernel math namespaces sequences sets words ;
6 FROM: classes.tuple.private => tuple-layout ;
7 FROM: namespaces => set ;
8 IN: stack-checker.dependencies
10 ! Words that the current quotation depends on
13 SYMBOLS: effect-dependency conditional-dependency definition-dependency ;
15 : index>= ( obj1 obj2 seq -- ? )
16 [ index ] curry bi@ >= ;
18 : dependency>= ( how1 how2 -- ? )
21 conditional-dependency
25 : strongest-dependency ( how1 how2 -- how )
26 [ effect-dependency or ] bi@ [ dependency>= ] most ;
28 : depends-on ( word how -- )
29 over primitive? [ 2drop ] [
30 dependencies get dup [
31 swap '[ _ strongest-dependency ] change-at
35 : add-depends-on-effect ( word -- )
36 effect-dependency depends-on ;
38 : add-depends-on-conditionally ( word -- )
39 conditional-dependency depends-on ;
41 : add-depends-on-definition ( word -- )
42 definition-dependency depends-on ;
44 GENERIC: add-depends-on-c-type ( c-type -- )
46 M: void add-depends-on-c-type drop ;
48 M: c-type-word add-depends-on-c-type add-depends-on-definition ;
50 M: array add-depends-on-c-type
51 [ word? ] filter [ add-depends-on-definition ] each ;
53 M: pointer add-depends-on-c-type
54 to>> add-depends-on-c-type ;
56 ! Generic words that the current quotation depends on
57 SYMBOL: generic-dependencies
59 : ?class-or ( class class/f -- class' )
62 : add-depends-on-generic ( class generic -- )
63 generic-dependencies get
64 [ [ ?class-or ] change-at ] [ 2drop ] if* ;
66 ! Conditional dependencies are re-evaluated when classes change;
67 ! if any fail, the word is recompiled
68 SYMBOL: conditional-dependencies
70 GENERIC: satisfied? ( dependency -- ? )
72 : add-conditional-dependency ( ... class -- )
73 boa conditional-dependencies get
74 [ adjoin ] [ drop ] if* ; inline
76 TUPLE: depends-on-class-predicate class1 class2 result ;
78 : add-depends-on-class-predicate ( class1 class2 result -- )
79 \ depends-on-class-predicate add-conditional-dependency ;
81 M: depends-on-class-predicate satisfied?
83 [ class1>> valid-classoid? ]
84 [ class2>> valid-classoid? ]
85 [ [ [ class1>> ] [ class2>> ] bi evaluate-class-predicate ] [ result>> ] bi eq? ]
88 TUPLE: depends-on-instance-predicate object class result ;
90 : add-depends-on-instance-predicate ( object class result -- )
91 \ depends-on-instance-predicate add-conditional-dependency ;
93 M: depends-on-instance-predicate satisfied?
95 [ class>> valid-classoid? ]
96 [ [ [ object>> ] [ class>> ] bi instance? ] [ result>> ] bi eq? ]
99 TUPLE: depends-on-next-method class generic next-method ;
101 : add-depends-on-next-method ( class generic next-method -- )
102 over add-depends-on-conditionally
103 \ depends-on-next-method add-conditional-dependency ;
105 M: depends-on-next-method satisfied?
107 [ class>> valid-classoid? ]
108 [ [ [ class>> ] [ generic>> ] bi next-method ] [ next-method>> ] bi eq? ]
111 TUPLE: depends-on-method class generic method ;
113 : add-depends-on-method ( class generic method -- )
114 over add-depends-on-conditionally
115 \ depends-on-method add-conditional-dependency ;
117 M: depends-on-method satisfied?
119 [ class>> classoid? ]
120 [ [ [ class>> ] [ generic>> ] bi method-for-class ] [ method>> ] bi eq? ]
123 TUPLE: depends-on-tuple-layout class layout ;
125 : add-depends-on-tuple-layout ( class layout -- )
126 [ drop add-depends-on-conditionally ]
127 [ \ depends-on-tuple-layout add-conditional-dependency ] 2bi ;
129 M: depends-on-tuple-layout satisfied?
130 [ class>> tuple-layout ] [ layout>> ] bi eq? ;
132 TUPLE: depends-on-flushable word ;
134 : add-depends-on-flushable ( word -- )
135 [ add-depends-on-conditionally ]
136 [ \ depends-on-flushable add-conditional-dependency ] bi ;
138 M: depends-on-flushable satisfied?
141 TUPLE: depends-on-final class ;
143 : add-depends-on-final ( word -- )
144 [ add-depends-on-conditionally ]
145 [ \ depends-on-final add-conditional-dependency ] bi ;
147 M: depends-on-final satisfied?
148 class>> { [ class? ] [ final-class? ] } 1&& ;
150 : init-dependencies ( -- )
151 H{ } clone dependencies set
152 H{ } clone generic-dependencies set
153 HS{ } clone conditional-dependencies set ;
155 : without-dependencies ( quot -- )
158 generic-dependencies off
159 conditional-dependencies off
161 ] with-scope ; inline