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40 lines
1.4 KiB
Scheme
40 lines
1.4 KiB
Scheme
;;; Guile VM frame utilities
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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 vm frame)
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:use-module (system vm core)
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:export (frame->call))
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(define (frame->call frame)
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(let* ((prog (frame-program frame))
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(nargs (car (program-arity prog))))
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(do ((i 0 (1+ i))
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(l (reverse! (vector->list (frame-variables frame))) (cdr l))
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(r '() (cons (car l) r)))
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((= i nargs) (cons (program-name prog) r)))))
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(define (program-name x)
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(hash-fold (lambda (s v d) (if (eq? x (variable-ref v)) s d)) x
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(module-obarray (current-module))))
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; (define-method (binding (prog <program>))
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; (fold (lambda (s v d) (if (eq? v prog) s d))
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; #f (program-environment prog)))
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