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ea9c5dab | 1 | ;;; Repl common routines |
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2 | |
3 | ;; Copyright (C) 2001 Free Software Foundation, Inc. | |
4 | ||
5 | ;; This program is free software; you can redistribute it and/or modify | |
6 | ;; it under the terms of the GNU General Public License as published by | |
7 | ;; the Free Software Foundation; either version 2, or (at your option) | |
8 | ;; any later version. | |
9 | ;; | |
10 | ;; This program is distributed in the hope that it will be useful, | |
11 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | ;; GNU General Public License for more details. | |
14 | ;; | |
15 | ;; You should have received a copy of the GNU General Public License | |
16 | ;; along with this program; see the file COPYING. If not, write to | |
17 | ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
18 | ;; Boston, MA 02111-1307, USA. | |
19 | ||
20 | ;;; Code: | |
21 | ||
22 | (define-module (system repl common) | |
23 | :use-module (oop goops) | |
24 | :use-syntax (system base syntax) | |
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25 | :use-module (system base language) |
26 | :use-module (system vm core) | |
46cd9a34 | 27 | :use-module (system vm trace) |
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28 | :export (make-repl repl-welcome repl-prompt repl-read repl-compile |
29 | repl-eval repl-print repl-compile-file repl-load-file)) | |
30 | ||
31 | \f | |
32 | ;;; | |
33 | ;;; Repl | |
34 | ;;; | |
35 | ||
36 | (define-vm-class <repl> () | |
37 | vm language module value-count value-history tm-stats vm-stats gc-stats) | |
38 | ||
39 | (define (make-repl lang) | |
40 | (let ((vm (make-vm))) | |
41 | (make <repl> | |
42 | :vm vm | |
43 | :language (lookup-language lang) | |
9419ff9a | 44 | :module #f ;; (global-ref 'user) |
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45 | :value-count 0 |
46 | ; :value-history (make-vmodule) | |
47 | :tm-stats (times) | |
48 | :vm-stats (vm-stats vm) | |
49 | :gc-stats (gc-stats)))) | |
50 | ||
51 | (define (repl-welcome repl) | |
52 | (format #t "~A interpreter ~A on Guile ~A\n" | |
53 | repl.language.title repl.language.version (version)) | |
54 | (display "Copyright (C) 2001 Free Software Foundation, Inc.\n\n") | |
55 | (display "Enter `,help' for help.\n")) | |
56 | ||
57 | (define (repl-prompt repl) | |
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58 | (format #t "~A@~A> " repl.language.name 'guile) |
59 | ;; (env-identifier repl.module)) | |
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60 | (force-output)) |
61 | ||
62 | (define (repl-read repl . args) | |
63 | (apply read-in repl.language args)) | |
64 | ||
65 | (define (repl-compile repl form . opts) | |
66 | (let ((bytes (apply compile-in form repl.module repl.language opts))) | |
46cd9a34 | 67 | (if (or (memq :c opts) (memq :l opts) (memq :t opts) (memq :e opts)) |
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68 | bytes |
69 | (vm-load repl.vm bytes)))) | |
70 | ||
71 | (define (repl-eval repl form) | |
72 | (let ((evaler repl.language.evaler)) | |
73 | (if evaler | |
74 | (evaler form repl.module) | |
75 | (repl.vm (repl-compile repl form))))) | |
76 | ||
77 | (define (repl-print repl val) | |
78 | (if (not (eq? val *unspecified*)) | |
79 | (let* ((num (1+ repl.value-count)) | |
80 | (sym (string->symbol (format #f "$~A" num)))) | |
81 | ; (vmodule-define repl.value-history sym val) | |
82 | (format #t "~A = " sym) | |
83 | (print-in val repl.language) | |
84 | (newline) | |
85 | (set! repl.value-count num)))) | |
86 | ||
87 | (define (repl-compile-file repl form . opts) | |
88 | (apply compile-file-in form repl.module repl.language opts)) | |
89 | ||
90 | (define (repl-load-file repl file . opts) | |
91 | (let ((bytes (apply load-file-in file repl.module repl.language opts))) | |
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92 | (if (memq #:t opts) (vm-trace-start! repl.vm #:a)) |
93 | (repl.vm (vm-load repl.vm bytes)) | |
94 | (if (memq #:t opts) (vm-trace-end! repl.vm #:a)))) |