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; Milawa - A Reflective Theorem Prover
; Copyright (C) 2005-2009 Kookamara LLC
;
; Contact:
;
; Kookamara LLC
; 11410 Windermere Meadows
; Austin, TX 78759, USA
; http://www.kookamara.com/
;
; License: (An MIT/X11-style license)
;
; Permission is hereby granted, free of charge, to any person obtaining a
; copy of this software and associated documentation files (the "Software"),
; to deal in the Software without restriction, including without limitation
; the rights to use, copy, modify, merge, publish, distribute, sublicense,
; and/or sell copies of the Software, and to permit persons to whom the
; Software is furnished to do so, subject to the following conditions:
;
; The above copyright notice and this permission notice shall be included in
; all copies or substantial portions of the Software.
;
; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
; FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
; DEALINGS IN THE SOFTWARE.
;
; Original author: Jared Davis <jared@kookamara.com>
(in-package "MILAWA")
(set-verify-guards-eagerness 2)
(set-case-split-limitations nil)
(set-well-founded-relation ord<)
(set-measure-function rank)
;; Rule structure creation
;;
;; We provide some macros for generating rewrite rule structures.
(defmacro %hyp (term &key force limit)
`(%hyp-fn ',term ,force ,limit))
(defun %hyp-fn (term force limit)
(declare (xargs :mode :program))
(let ((term-trans (logic.translate term)))
(cond ((not term-trans)
(ACL2::er hard '%hyp "The proposed hyp, ~x0, is not translatable.~%" term))
((not (rw.force-modep force))
(ACL2::er hard '%hyp "The proposed force mode, ~x0, is invalid.~%" force))
(t
(rw.hyp term-trans
force
(if limit t nil)
(nfix limit))))))
(defun %hyps-fn-aux (terms force limit)
(declare (xargs :mode :program))
(if (consp terms)
(cons `(%hyps ,(car terms) :force ,force :limit ,limit)
(%hyps-fn-aux (cdr terms) force limit))
nil))
(defun %hyps-fn (flag hyp force limit)
(declare (xargs :mode :program))
(if (equal flag 'term)
(if (and (consp hyp)
(equal (car hyp) 'and))
(%hyps-fn 'list (cdr hyp) force limit)
(list `(%hyp ,hyp :force ,force :limit ,limit)))
(if (consp hyp)
(fast-app (%hyps-fn 'term (car hyp) force limit)
(%hyps-fn 'list (cdr hyp) force limit))
nil)))
(defmacro %hyps (hyp &key force limit)
(cons 'list (%hyps-fn 'term hyp force limit)))
(defmacro %rule (name &key (type 'inside) hyps lhs rhs (equiv 'equal) syntax)
`(%rule-fn ',name ',type ,hyps ',lhs ',rhs ',equiv ',syntax))
(defun %rule-fn (name type hyps lhs rhs equiv syntax)
(declare (xargs :mode :program))
(let ((lhs-trans (logic.translate lhs))
(rhs-trans (logic.translate rhs))
(syntax-trans (logic.translate-list syntax)))
(cond ((not (symbolp name))
(ACL2::er hard '%rule "The proposed name, ~x0, is not a symbol.~%" name))
((not (memberp type '(inside outside manual)))
(ACL2::er hard '%rule "The proposed type, ~x0, is not supported.~%" type))
((not lhs-trans)
(ACL2::er hard '%rule "The proposed lhs, ~x0, is not translatable.~%" lhs))
((not rhs-trans)
(ACL2::er hard '%rule "The proposed rhs, ~x0, is not translatable.~%" rhs))
((not (car syntax-trans))
(ACL2::er hard '%rule "The proposed syntax, ~x0, is not translatable.~%" syntax))
((not (logic.all-functionsp (cdr syntax-trans)))
(ACL2::er hard '%rule "The proposed syntax, ~x0, is not a list of function calls.~%" syntax))
((not (memberp equiv '(iff equal)))
(ACL2::er hard '%rule "The proposed equiv, ~x0, is not equal or iff.~%" equiv))
(t
(rw.rule name
type
(rw.limit-hyps lhs-trans hyps)
equiv
lhs-trans
rhs-trans
(cdr syntax-trans)
(rw.critical-hyps lhs-trans hyps))))))
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