1 ! Copyright (C) 2009 Jose Antonio Ortega Ruiz.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays continuations debugger fuel.pprint io
4 io.streams.string kernel listener namespaces sequences
9 TUPLE: fuel-status manifest restarts ;
11 SYMBOL: fuel-status-stack
12 V{ } clone fuel-status-stack set-global
14 SYMBOL: fuel-eval-error
15 f fuel-eval-error set-global
17 SYMBOL: fuel-eval-result
18 f fuel-eval-result set-global
20 SYMBOL: fuel-eval-output
21 f fuel-eval-result set-global
23 SYMBOL: fuel-eval-res-flag
24 t fuel-eval-res-flag set-global
26 : fuel-eval-restartable? ( -- ? )
27 fuel-eval-res-flag get-global ;
29 : fuel-push-status ( -- )
30 manifest get clone restarts get-global clone
32 fuel-status-stack get push ;
34 : fuel-pop-restarts ( restarts -- )
35 fuel-eval-restartable? [ drop ] [ clone restarts set-global ] if ;
37 : fuel-pop-status ( -- )
38 fuel-status-stack get [
40 [ manifest>> clone manifest set ]
41 [ restarts>> fuel-pop-restarts ]
45 : fuel-forget-error ( -- ) f fuel-eval-error set-global ;
46 : fuel-forget-result ( -- ) f fuel-eval-result set-global ;
47 : fuel-forget-output ( -- ) f fuel-eval-output set-global ;
48 : fuel-forget-status ( -- )
49 fuel-forget-error fuel-forget-result fuel-forget-output ;
51 : fuel-send-retort ( -- )
52 fuel-eval-error get-global
53 fuel-eval-result get-global
54 fuel-eval-output get-global 3array
55 fuel-pprint flush nl "<~FUEL~>" write nl flush ;
57 : (fuel-begin-eval) ( -- )
58 fuel-push-status fuel-forget-status ;
60 : (fuel-end-eval) ( output -- )
61 fuel-eval-output set-global fuel-send-retort fuel-pop-status ;
63 : (fuel-eval) ( lines -- )
64 [ parse-lines-interactive call( -- ) ] curry
65 [ [ fuel-eval-error set-global ] [ print-error ] bi ] recover ;
67 : (fuel-eval-usings) ( usings -- )
68 [ [ use-vocab ] curry [ drop ] recover ] each ;
70 : (fuel-eval-in) ( in -- )
71 [ set-current-vocab ] when* ;
73 : (fuel-eval-in-context) ( lines in usings -- )
75 [ (fuel-eval-usings) (fuel-eval-in) (fuel-eval) ] with-string-writer