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;;; CMPBIND Variable Binding.
;;;
;; Copyright (C) 1994 M. Hagiya, W. Schelter, T. Yuasa
;; This file is part of GNU Common Lisp, herein referred to as GCL
;;
;; GCL is free software; you can redistribute it and/or modify it under
;; the terms of the GNU LIBRARY GENERAL PUBLIC LICENSE as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; GCL 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 Library General Public
;; License for more details.
;;
;; You should have received a copy of the GNU Library General Public License
;; along with GCL; see the file COPYING. If not, write to the Free Software
;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
(in-package :compiler)
(si:putprop 'bds-bind 'set-bds-bind 'set-loc)
;;; Those functions that call the following binding functions should
;;; rebind the special variables,
;;; *vs*, *clink*, *ccb-vs*, and *unwind-exit*.
(defun c2bind (var)
(case (var-kind var)
(LEXICAL
(when (var-ref-ccb var)
(wt-nl)
(wt-vs (var-ref var))
(wt "=MMcons(") (wt-vs (var-ref var))
(wt ",") (wt-clink) (wt ");")
(clink (var-ref var))
(setf (var-ref-ccb var) (ccb-vs-push))))
(SPECIAL
(wt-nl "bds_bind(" (vv-str (var-loc var)) ",") (wt-vs (var-ref var))
(wt ");")
(push 'bds-bind *unwind-exit*))
(DOWN
(cond ((integerp (var-loc var))
(wt-nl "base0[" (var-loc var) "]=")
(wt-vs (var-ref var))
(wt ";"))
(t (wfs-error))))
(INTEGER
(wt-nl "SETQ_IO(V" (var-loc var)","
"V" (var-loc var)"alloc,")
(wt "(") (wt-vs (var-ref var)) (wt "),")
(wt (bignum-expansion-storage) ");"))
(t
(wt-nl "V" (var-loc var) "=")
(case (var-kind var)
(OBJECT)
(FIXNUM (wt "fix"))
(CHARACTER (wt "char_code"))
(LONG-FLOAT (wt "lf"))
(SHORT-FLOAT (wt "sf"))
(t (baboon)))
(wt "(") (wt-vs (var-ref var)) (wt ");")))
)
(defun c2bind-loc (var loc)
(case (var-kind var)
(LEXICAL
(cond ((var-ref-ccb var)
(wt-nl)
(wt-vs (var-ref var))
(wt "=MMcons(" loc ",") (wt-clink) (wt ");")
(clink (var-ref var))
(setf (var-ref-ccb var) (ccb-vs-push)))
(t
(wt-nl) (wt-vs (var-ref var)) (wt "= " loc ";"))))
(SPECIAL
(wt-nl "bds_bind(" (vv-str (var-loc var)) "," loc ");")
(push 'bds-bind *unwind-exit*))
(DOWN
(wt-nl "base0[" (var-loc var) "]=" loc ";"))
(INTEGER
(let ((*inline-blocks* 0) (*restore-avma* *restore-avma*))
(save-avma '(nil integer))
(wt-nl "V" (var-loc var) "= ")
(wt-integer-loc loc var)
(wt ";")
(close-inline-blocks)))
(t
(wt-nl "V" (var-loc var) "= ")
(case (var-kind var)
(OBJECT (wt-loc loc))
(FIXNUM (wt-fixnum-loc loc))
(CHARACTER (wt-character-loc loc))
(LONG-FLOAT (wt-long-float-loc loc))
(SHORT-FLOAT (wt-short-float-loc loc))
(t (baboon)))
(wt ";")))
)
(defun c2bind-init (var init)
(case (var-kind var)
(LEXICAL
(cond ((var-ref-ccb var)
(let ((loc (list 'vs (var-ref var))))
(let ((*value-to-go* loc))
(c2expr* init))
(wt-nl loc "=MMcons(" loc ",") (wt-clink *clink*)
(wt ");"))
(clink (var-ref var))
(setf (var-ref-ccb var) (ccb-vs-push)))
(t
(let ((*value-to-go* (list 'vs (var-ref var))))
(c2expr* init)))))
(SPECIAL
(let ((*value-to-go* (list 'bds-bind (var-loc var))))
(c2expr* init))
(push 'bds-bind *unwind-exit*))
(DOWN
(let ((*value-to-go* (list 'down (var-loc var))))
(c2expr* init)))
((OBJECT FIXNUM CHARACTER LONG-FLOAT SHORT-FLOAT INTEGER)
(let ((*value-to-go* (list 'var var nil)))
(c2expr* init)))
(t (baboon)))
)
(defun set-bds-bind (loc vv)
(wt-nl "bds_bind(" (vv-str vv) "," loc ");"))
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