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(in-package "DJVM")
(include-book "../DJVM/consistent-state")
;; (include-book "../DJVM/djvm-env")
;; (include-book "../DJVM/djvm-class-table")
;; (include-book "../DJVM/djvm-thread")
;; (include-book "../DJVM/djvm-obj")
;; (include-book "../DJVM/djvm-type-value")
;; (include-book "../DJVM/djvm-linker")
;;; The predicate defined in this section: asserts that if local or operand
;;; stack contains uninitialized reference, then, these references should be
;;; kept tracked of in frame-obj-init-map.
;;;
;;; Mon Oct 24 13:52:01 2005
(acl2::set-verify-guards-eagerness 2)
(defun frame-obj-init-map (frame)
(declare (xargs :guard (wff-call-frame frame)))
(acl2::g 'frame-obj-init-map (frame-aux frame)))
(defun collect-keys (obj-init-map)
(declare (xargs :guard (alistp obj-init-map)))
(if (endp obj-init-map) nil
(cons (car (car obj-init-map))
(collect-keys (cdr obj-init-map)))))
(defun collect-values (obj-init-map)
(declare (xargs :guard (and (alistp obj-init-map)
(nodup-set (collect-keys obj-init-map)))))
(if (endp obj-init-map) nil
(cons (cdr (car obj-init-map))
(collect-values (cdr obj-init-map)))))
(defun initialized-ref (ref hp-init)
(declare (xargs :guard (wff-heap-init-map-strong hp-init)))
(or (not (bound? ref hp-init))
(not (consp (binding ref hp-init)))))
;; (defun consistent-locals-obj-init (locals hp-init valid-obj-refs)
;; (declare (xargs :guard (and (wff-heap-init-map-strong hp-init)
;; (true-listp valid-obj-refs))))
;; (if (not (consp locals)) t
;; (cond ((category1loc locals)
;; (and (or (not (equal (tag-of (car locals)) 'REF))
;; ;; not a reference value!
;; (NULLp (car locals))
;; (initialized-ref (value-of (car locals)) hp-init)
;; (mem (value-of (car locals)) valid-obj-refs))
;; (consistent-locals-obj-init (shift1slot locals) hp-init
;; valid-obj-refs)))
;; ((category2loc locals)
;; (consistent-locals-obj-init (shift2slot locals) hp-init valid-obj-refs)))))
;; (defun wff-tagged-locals (l)
;; (if (not (consp l)) t
;; (and (wff-tagged-value (car l))
;; (wff-tagged-locals (cdr l)))))
;; ;;;
;; ;;; this will make the guard verification for consistent-state-strong
;; ;;; a bit complicated!
;; ;;;
;; ;;; the benefit is that we can have some nice lemma about pushStack and
;; ;;; popStack without thinking too much about the guard! --- by ignoring the
;; ;;; difference between size two value and size one value!!
;; ;;;
;;;;;;
(defun consistent-locals-obj-init (locals hp-init valid-obj-refs)
(declare (xargs :guard (and (wff-heap-init-map-strong hp-init)
(true-listp valid-obj-refs))))
(if (not (consp locals)) t
(and (wff-tagged-value (car locals))
(or (not (equal (tag-of (car locals)) 'REF))
(NULLp (car locals))
(initialized-ref (value-of (car locals)) hp-init)
(mem (value-of (car locals)) valid-obj-refs))
(consistent-locals-obj-init (cdr locals) hp-init valid-obj-refs))))
;; (defun consistent-opstack-obj-init (stack hp-init valid-obj-refs)
;; (declare (xargs :guard (and (wff-heap-init-map-strong hp-init)
;; (true-listp valid-obj-refs))))
;; (if (not (consp stack)) t
;; (cond ((canPopCategory1 stack)
;; (and (or (not (equal (tag-of (topCategory1 stack)) 'REF))
;; ;; not a reference value!
;; (NULLp (topCategory1 stack))
;; (initialized-ref (value-of (topCategory1 stack)) hp-init)
;; (mem (value-of (topCategory1 stack)) valid-obj-refs))
;; (consistent-opstack-obj-init (popCategory1 stack) hp-init
;; valid-obj-refs)))
;; ((canPopCategory2 stack)
;; (consistent-opstack-obj-init (popCategory2 stack) hp-init valid-obj-refs)))))
(defun consistent-opstack-obj-init (stack hp-init valid-obj-refs)
(declare (xargs :guard (and (wff-heap-init-map-strong hp-init)
(true-listp valid-obj-refs))))
(if (not (consp stack)) t
(and (wff-tagged-value (car stack))
(or (not (equal (tag-of (car stack)) 'REF))
(NULLp (car stack))
(initialized-ref (value-of (car stack)) hp-init)
(mem (value-of (car stack)) valid-obj-refs))
(consistent-opstack-obj-init (cdr stack) hp-init
valid-obj-refs))))
(defun isConstructorFrame (frame)
(declare (xargs :guard (wff-call-frame frame)
:guard-hints (("Goal" :in-theory (enable wff-call-frame)))))
(equal (method-ptr-methodname (method-ptr frame))
"<init>"))
(defun consistent-frame-obj-init (frame hp-init)
(declare (xargs :guard (and (wff-call-frame frame)
(wff-heap-init-map-strong hp-init))))
(mylet* ((obj-refs (collect-values (frame-obj-init-map frame)))
(this (acl2::g 'this (frame-aux frame)))
(vars (locals frame))
(stack (operand-stack frame)))
(and (alistp (frame-obj-init-map frame))
(nodup-set (collect-keys (frame-obj-init-map frame)))
(cond ((isConstructorFrame frame)
(and (consistent-locals-obj-init vars hp-init (cons this obj-refs))
(consistent-opstack-obj-init stack hp-init (cons this obj-refs))))
(t (and (consistent-locals-obj-init vars hp-init obj-refs)
(consistent-opstack-obj-init stack hp-init obj-refs)))))))
(defun consistent-call-stack-obj-init (call-stack hp-init)
(declare (xargs :guard (wff-heap-init-map-strong hp-init)))
(if (not (consp call-stack)) t
(and (wff-call-frame (car call-stack))
(consistent-frame-obj-init (car call-stack) hp-init)
(consistent-call-stack-obj-init (cdr call-stack) hp-init))))
(defun consistent-thread-entry-obj-init (thread-entry hp-init)
(declare (xargs :guard (wff-heap-init-map-strong hp-init)))
(and (wff-thread thread-entry)
(consistent-call-stack-obj-init (thread-call-stack thread-entry)
hp-init)))
(defun consistent-thread-table-obj-init (tt hp-init)
(declare (xargs :guard (wff-heap-init-map-strong hp-init)))
(if (not (consp tt)) t
(and (consistent-thread-entry-obj-init (car tt) hp-init)
(consistent-thread-table-obj-init (cdr tt) hp-init))))
(defun consistent-state-obj-init (s)
(declare (xargs :guard (and (wff-state s)
(wff-heap-init-map-strong (heap-init-map (aux s))))))
(consistent-thread-table-obj-init (thread-table s) (heap-init-map (aux s))))
(in-theory (disable consistent-state-obj-init
consistent-thread-table-obj-init
consistent-thread-entry-obj-init
consistent-call-stack-obj-init
consistent-frame-obj-init
consistent-opstack-obj-init
consistent-locals-obj-init))
;----------------------------------------------------------------------
|
