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;;;-*-Mode:LISP; Package: CHAOS; Base:10; Syntax:Common-lisp -*-
;;;
;;; Copyright (c) 2000-2015, Toshimi Sawada. All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;;
;;; * Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;;
;;; * Redistributions in binary form must reproduce the above
;;; copyright notice, this list of conditions and the following
;;; disclaimer in the documentation and/or other materials
;;; provided with the distribution.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;
;;;
(in-package :chaos)
#|=============================================================================
System:Chaos
Module:BigPink
File:proof-sys.lisp
=============================================================================|#
#-:chaos-debug
(declaim (optimize (speed 3) (safety 0) #-GCL (debug 0)))
#+:chaos-debug
(declaim (optimize (speed 1) (safety 3) #-GCL (debug 3)))
;;;*****************************************************************************
;;; PROOF SYSTEM ASSOCIATED WITH MODULE
;;;*****************************************************************************
;;; extend module info
(defmacro module-proof-system (_mod)
`(getf (object-misc-info ,_mod) :proof-system))
(defun create-module-psystem (mod)
(declare (type module mod))
(if (module-proof-system mod)
(let ((psys (module-proof-system mod)))
(initialize-psystem psys mod))
(setf (module-proof-system mod)
(make-psystem :module mod
:clause-hash (make-hash-table :test #'eql)
:demodulators (make-hash-table :test #'eq)))
))
(defun update-module-proof-system (mod &optional do-anyway)
(declare (type module mod))
(let ((clear-passive nil))
(when (need-rewriting-preparation mod)
(compile-module mod)
(setq clear-passive t)
(setq do-anyway t))
(unless (module-proof-system mod)
(setq do-anyway t))
(let ((psystem (create-module-psystem mod)))
(when clear-passive
(setf (psystem-passive psystem) nil))
;; reset clause counter
(reset-clause-db psystem)
;; generate axioms in clause form
(module-axioms->clause psystem)
;; may introduce skolem functions.
(prepare-for-parsing mod)
;;
psystem)))
(defun reset-module-proof-system (module)
(declare (type module module))
;; setup lexical precedence of symbols.
(make-op-lex-prec-table module)
;; reset db:
(update-module-proof-system module t))
;;; PN-DB-RESET
;;;
(defun pn-db-reset (&optional (mod (get-context-module)))
(clear-all-index-tables)
(reset-module-proof-system mod))
(defun auto-db-reset (module)
(compile-module module)
(unless (module-proof-system module)
(create-module-psystem module))
(unless (psystem-axioms (module-proof-system module))
(pn-db-reset module)))
;;; CONTEXT MAKING MACRO
(defmacro with-proof-context ((_module_) &body body)
(once-only (_module_)
`(block with-proof-context
(block with-in-module
(let* ((*current-module* ,_module_)
(*current-sort-order* (module-sort-order *current-module*))
(*current-opinfo-table* (module-opinfo-table *current-module*))
(*current-ext-rule-table* (module-ext-rule-table *current-module*)))
(declare (special *current-module*
*current-sort-order*
*current-opinfo-table*
*current-ext-rule-table*))
(let* ((*current-proof-system* *current-module*)
(*current-psys* (module-proof-system *current-module*))
(*clause-hash* (psystem-clause-hash *current-psys*))
(*sos* (psystem-sos *current-psys*))
(*usable* (psystem-usable *current-psys*))
(*demodulators* (psystem-demodulators *current-psys*))
(*passive* (psystem-passive *current-psys*))
(*clause-given* nil)
)
(declare (special *current-proof-system*
*current-psys*
*clause-hash*
*sos*
*usable*
*clause-given*
*passive*))
;;
,@body)
)))))
;;; EOF
|
