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|
; ACL2 Standard Library
; Copyright (c) 2008-2015 Centaur Technology
;
; Contact:
; Centaur Technology Formal Verification Group
; 7600-C N. Capital of Texas Highway, Suite 300, Austin, TX 78731, USA.
; http://www.centtech.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@centtech.com>
; Modified by David Rager <ragerdl@cs.utexas.edu>
(in-package "ACL2")
(include-book "std/util/define" :dir :system)
(include-book "std/util/defconsts" :dir :system)
(include-book "tools/advise" :dir :system)
#!STD
(defun returnspeclist->return-types (x)
(declare (xargs :mode :program))
(if (atom x)
nil
(cons (returnspec->return-type (car x))
(returnspeclist->return-types (cdr x)))))
(defun bind-to-nth-values (retnames n)
(declare (xargs :mode :program))
(if (atom retnames)
nil
(cons (list (car retnames) `(nth ,n acl2::values))
(bind-to-nth-values (cdr retnames) (+ 1 n)))))
(defun assert-return-advice (fn info)
;; Generates the advise we want to give.
(declare (xargs :mode :program))
(b* ((__function__ 'assert-return-advice)
(returns (cdr (assoc :returns info)))
(retnames (std::returnspeclist->names returns))
(rettypes (std::returnspeclist->return-types returns))
(assertion (cons 'and rettypes))
((when (atom retnames))
(raise "No :returns for ~x0~%" fn)))
`(let ,(bind-to-nth-values retnames 0)
(or ,assertion
(cw "Assertion for ~x0 failed!~%" ',fn)
(break$)))))
(defmacro assert-return-thms (fn)
`(b* ((__function__ 'assert-return-thms)
(fn ',fn)
(info (cdr (assoc fn (std::get-defines (w state)))))
((unless info)
(raise "No define info for ~x0~%" fn))
(real-fn (cdr (assoc :fn info)))
(advice (assert-return-advice fn info)))
(advise$ real-fn advice :when :after)))
#|
(local (include-book
"str/top" :dir :system))
(program)
(define foo ((x natp :type integer)
(y stringp)
&key
(acc character-listp))
:returns (mv (new-x oddp :hyp :fguard)
(y stringp :rule-classes :type-prescription)
(acc "Extended with X."
(character-listp acc)
:hyp :fguard))
:mode :program
(mv x
(mbe :logic (if (stringp y) y "")
:exec y)
(append (str::nat-to-dec-chars x) acc)))
(assert-return-thms foo)
(foo 1 "foo" :acc nil))
(foo 2 "foo" :acc nil))
|#
|
