1 ! Copyright (C) 2009 Daniel Ehrenberg, Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: kernel kernel.private macros fry summary sequences
4 sequences.private accessors effects effects.parser parser words
8 ERROR: wrong-values effect ;
10 M: wrong-values summary drop "Quotation called with stack effect" ;
14 : parse-call( ( accum word -- accum )
15 [ ")" parse-effect parsed ] dip parsed ;
17 : call-effect-unsafe ( quot effect -- )
20 : call-unsafe( \ call-effect-unsafe parse-call( ; parsing
24 : (call-effect>quot) ( in out effect -- quot )
26 [ [ datastack ] dip dip ] %
27 [ [ , ] bi@ \ check-datastack , ] dip [ wrong-values ] curry , \ unless ,
30 : call-effect>quot ( effect -- quot )
31 [ in>> length ] [ out>> length ] [ ] tri
32 [ (call-effect>quot) ] keep add-effect-input
33 [ call-effect-unsafe ] 2curry ;
35 MACRO: call-effect ( effect -- quot )
38 : call( \ call-effect parse-call( ; parsing
42 : execute-effect-unsafe ( word effect -- )
45 : execute-unsafe( \ execute-effect-unsafe parse-call( ; parsing
47 : execute-effect-slow ( word effect -- )
48 [ [ execute ] curry ] dip call-effect ; inline
50 : cache-hit? ( word ic -- ? ) first-unsafe eq? ; inline
52 : cache-hit ( word effect ic -- ) drop execute-effect-unsafe ; inline
54 : execute-effect-unsafe? ( word effect -- ? )
55 over optimized>> [ [ stack-effect ] dip effect<= ] [ 2drop f ] if ; inline
57 : cache-miss ( word effect ic -- )
58 2over execute-effect-unsafe?
59 [ [ nip set-first ] [ drop execute-effect-unsafe ] 3bi ]
60 [ execute-effect-slow ] if ; inline
62 : execute-effect-ic ( word effect ic -- )
63 #! ic is a mutable cell { effect }
64 3dup nip cache-hit? [ cache-hit ] [ cache-miss ] if ; inline
66 : execute-effect>quot ( effect -- quot )
67 { f } clone [ execute-effect-ic ] 2curry ;
71 MACRO: execute-effect ( effect -- )
74 : execute( \ execute-effect parse-call( ; parsing