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ce0925e14e
* module/system/repl/common.scm: * module/system/base/compile.scm: Export some more things. * module/system/repl/command.scm: Dedottify.
97 lines
2.8 KiB
Scheme
97 lines
2.8 KiB
Scheme
;;; Repl common routines
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;; Copyright (C) 2001 Free Software Foundation, Inc.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Code:
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(define-module (system repl common)
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:use-syntax (system base syntax)
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:use-module (system base compile)
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:use-module (system base language)
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:use-module (system vm core)
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:export (<repl> make-repl repl-env repl-options repl-tm-stats
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repl-gc-stats repl-vm-stats))
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;;;
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;;; Repl type
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;;;
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(define-record (<repl> env options tm-stats gc-stats vm-stats))
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(define repl-default-options
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'((trace . #f)))
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(define %make-repl make-repl)
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(define (make-repl lang)
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(let ((cenv (make-cenv :vm (the-vm)
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:language (lookup-language lang)
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:module (current-module))))
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(%make-repl :env cenv
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:options repl-default-options
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:tm-stats (times)
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:gc-stats (gc-stats)
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:vm-stats (vm-stats cenv.vm))))
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(define-public (repl-welcome repl)
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(format #t "~A interpreter ~A on Guile ~A\n"
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repl.env.language.title repl.env.language.version (version))
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(display "Copyright (C) 2001 Free Software Foundation, Inc.\n\n")
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(display "Enter `,help' for help.\n"))
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(define-public (repl-prompt repl)
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(let ((module-name (car (last-pair (module-name repl.env.module)))))
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(format #t "~A@~A> " repl.env.language.name module-name)
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(force-output)))
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(define-public (repl-read repl)
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(repl.env.language.reader))
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(define-public (repl-compile repl form . opts)
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(apply compile-in form repl.env.module repl.env.language opts))
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(define-public (repl-eval repl form)
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(let ((eval repl.env.language.evaluator))
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(if eval
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(eval form repl.env.module)
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(vm-load repl.env.vm (repl-compile repl form)))))
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(define-public (repl-print repl val)
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(if (not (eq? val *unspecified*))
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(begin
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(repl.env.language.printer val)
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(newline))))
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(define-public (repl-option-ref repl key)
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(assq-ref repl.options key))
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(define-public (repl-option-set! repl key val)
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(set! repl.options (assq-set! repl.options key val)))
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;;;
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;;; Utilities
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;;;
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(define-public (puts x) (display x) (newline))
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(define-public (->string x)
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(object->string x display))
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(define-public (user-error msg . args)
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(throw 'user-error #f msg args #f))
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