-;;; Repl common routines
-
-;; Copyright (C) 2001 Free Software Foundation, Inc.
-
-;; This program is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
-;;
-;; This program is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; GNU General Public License for more details.
-;;
-;; You should have received a copy of the GNU General Public License
-;; along with this program; see the file COPYING. If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Code:
-
-(define-module (system repl common)
- :use-syntax (system base syntax)
- :use-module (system base compile)
- :use-module (system base language)
- :use-module (system vm core)
- :export (<repl> make-repl repl-env repl-options repl-tm-stats
- repl-gc-stats repl-vm-stats
- repl-welcome repl-prompt repl-read repl-compile repl-eval
- repl-print repl-option-ref repl-option-set!
- puts ->string user-error))
-
-\f
-;;;
-;;; Repl type
-;;;
-
-(define-record (<repl> env options tm-stats gc-stats vm-stats))
-
-(define repl-default-options
- '((trace . #f)))
-
-(define %make-repl make-repl)
-(define (make-repl lang)
- (let ((cenv (make-cenv :vm (the-vm)
- :language (lookup-language lang)
- :module (current-module))))
- (%make-repl :env cenv
- :options repl-default-options
- :tm-stats (times)
- :gc-stats (gc-stats)
- :vm-stats (vm-stats (cenv-vm cenv)))))
-
-(define (repl-welcome repl)
- (let ((language (cenv-language (repl-env repl))))
- (format #t "~A interpreter ~A on Guile ~A\n"
- (language-title language) (language-version language) (version)))
- (display "Copyright (C) 2001 Free Software Foundation, Inc.\n\n")
- (display "Enter `,help' for help.\n"))
-
-(define (repl-prompt repl)
- (format #t "~A@~A> " (language-name (cenv-language (repl-env repl)))
- (module-name (cenv-module (repl-env repl))))
- (force-output))
-
-(define (repl-read repl)
- ((language-reader (cenv-language (repl-env repl)))))
-
-(define (repl-compile repl form . opts)
- (apply compile-in form (cenv-module (repl-env repl))
- (cenv-language (repl-env repl)) opts))
-
-(define (repl-eval repl form)
- (let ((eval (language-evaluator (cenv-language (repl-env repl)))))
- (if eval
- (eval form (cenv-module (repl-env repl)))
- (vm-load (cenv-vm (repl-env repl)) (repl-compile repl form)))))
-
-(define (repl-print repl val)
- (if (not (eq? val *unspecified*))
- (begin
- ((language-printer (cenv-language (repl-env repl))) val)
- (newline))))
-
-(define (repl-option-ref repl key)
- (assq-ref (repl-options repl) key))
-
-(define (repl-option-set! repl key val)
- (set! (repl-options repl) (assq-set! (repl-options repl) key val)))
-
-\f
-;;;
-;;; Utilities
-;;;
-
-(define (puts x) (display x) (newline))
-
-(define (->string x)
- (object->string x display))
-
-(define (user-error msg . args)
- (throw 'user-error #f msg args #f))
+;;; Repl common routines
+
+;; Copyright (C) 2001, 2008, 2009 Free Software Foundation, Inc.
+
+;;; This library is free software; you can redistribute it and/or
+;;; modify it under the terms of the GNU Lesser General Public
+;;; License as published by the Free Software Foundation; either
+;;; version 3 of the License, or (at your option) any later version.
+;;;
+;;; This library is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;;; Lesser General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU Lesser General Public
+;;; License along with this library; if not, write to the Free Software
+;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+;;; Code:
+
+(define-module (system repl common)
+ #:use-module (system base syntax)
+ #:use-module (system base compile)
+ #:use-module (system base language)
+ #:use-module (system vm vm)
+ #:export (<repl> make-repl repl-vm repl-language repl-options
+ repl-tm-stats repl-gc-stats
+ repl-welcome repl-prompt repl-read repl-compile repl-eval
+ repl-parse repl-print repl-option-ref repl-option-set!
+ puts ->string user-error))
+
+\f
+;;;
+;;; Repl type
+;;;
+
+(define-record/keywords <repl> vm language options tm-stats gc-stats)
+
+(define repl-default-options
+ '((trace . #f)
+ (interp . #f)))
+
+(define %make-repl make-repl)
+(define (make-repl lang)
+ (%make-repl #:vm (the-vm)
+ #:language (lookup-language lang)
+ #:options repl-default-options
+ #:tm-stats (times)
+ #:gc-stats (gc-stats)))
+
+(define (repl-welcome repl)
+ (let ((language (repl-language repl)))
+ (format #t "~A interpreter ~A on Guile ~A\n"
+ (language-title language) (language-version language) (version)))
+ (display "Copyright (C) 2001-2008 Free Software Foundation, Inc.\n\n")
+ (display "Enter `,help' for help.\n"))
+
+(define (repl-prompt repl)
+ (format #f "~A@~A> " (language-name (repl-language repl))
+ (module-name (current-module))))
+
+(define (repl-read repl)
+ ((language-reader (repl-language repl)) (current-input-port)
+ (current-module)))
+
+(define (repl-compile repl form . opts)
+ (let ((to (lookup-language (cond ((memq #:e opts) 'scheme)
+ ((memq #:t opts) 'ghil)
+ ((memq #:c opts) 'glil)
+ (else 'objcode))))
+ (from (repl-language repl)))
+ (compile form #:from from #:to to #:opts opts #:env (current-module))))
+
+(define (repl-parse repl form)
+ (let ((parser (language-parser (repl-language repl))))
+ (if parser (parser form) form)))
+
+(define (repl-eval repl form)
+ (let ((eval (language-evaluator (repl-language repl))))
+ (if (and eval
+ (or (null? (language-compilers (repl-language repl)))
+ (assq-ref (repl-options repl) 'interp)))
+ (eval form (current-module))
+ (vm-load (repl-vm repl) (repl-compile repl form '())))))
+
+(define (repl-print repl val)
+ (if (not (eq? val *unspecified*))
+ (begin
+ ;; The result of an evaluation is representable in scheme, and
+ ;; should be printed with the generic printer, `write'. The
+ ;; language-printer is something else: it prints expressions of
+ ;; a given language, not the result of evaluation.
+ (write val)
+ (newline))))
+
+(define (repl-option-ref repl key)
+ (assq-ref (repl-options repl) key))
+
+(define (repl-option-set! repl key val)
+ (set! (repl-options repl) (assq-set! (repl-options repl) key val)))
+
+\f
+;;;
+;;; Utilities
+;;;
+
+(define (puts x) (display x) (newline))
+
+(define (->string x)
+ (object->string x display))
+
+(define (user-error msg . args)
+ (throw 'user-error #f msg args #f))
HCoop / bpt / guile.git / blobdiff